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Core Duo - Intel's Best CPU?

Bender writes "How good is Intel's Core Duo mobile processor? Good enough that Apple chose to put it in the iMac, and good enough that Intel chose to base its next generation microprocessor architecture on it. But is it already Intel's best CPU? The Tech Report has managed to snag a micro-ATX motherboard for this processor and compared the Core Duo directly to a range of mobile and desktop CPUs from AMD and Intel, including the Athlon 64 X2 and the Pentium Extreme Edition. The results are surprising. Not only is the Core Duo's performance per watt better than the rest, but they conclude that its 'outright performance is easily superior to Intel's supposed flagship desktop processor, the Pentium Extreme Edition 965.'"

305 comments

  1. The real test will be time... by PenguinBoyDave · · Score: 0, Redundant

    It might perform well now, but how long will it last under a load? Will something happen over time that they do not forsee?

    Intel makes great stuff, but I think it is far too early to say it is the best chip ever...give it a few months in production and let the user decide.

    --
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    1. Re:The real test will be time... by Yvan256 · · Score: 1, Insightful

      Can we just all agree on "this is Intel's best chip so far"?

    2. Re:The real test will be time... by Anonymous Coward · · Score: 3, Insightful

      The parent is the worst comment I have ever seen. Maybe my morning coffee hasn't kicked in yet.

      "It might perform well now, but how long will it last under a load? Will something happen over time that they do not forsee?"

      Of AMD Competition? Of continuous 100% CPU utilization? Of OEM bumblings putting on an improperly rated Heatsink fan? If there is any faith in Moore's law, then we will all come to the simple conclusion that this chip is not going to be the best forever. However, is it the best right now? Yes.

      Performance per watt, per cycle, overall execution speed have proven this chip is the best x86-derieved architectures. This is a great accomplishment for Intel who's been on the ropes for quite some time.

      Now, to say, "Well, they may randomly explode because Intel pushed the envelope too far, I'm going to sit on my hands for another 6 months and wait out the war," is just caution to a fault. Yes, things will happen that people don't forsee. Will it explode? Will it have catastrophic microcode failures which cause hardware damage? Maybe. But then again, you'd just be sitting on your hands waiting for the off chance that you are right.

      p.s.
      Long time reader, first time poster. Congratulations your post dragged me kicking and screaming into /.

    3. Re:The real test will be time... by PenguinBoyDave · · Score: 1

      Thank you. I was wondering that same thing.

      --
      I'm not a troll, but I play one on Slashdot.
    4. Re:The real test will be time... by rvw14 · · Score: 1
      Maybe. But then again, you'd just be sitting on your hands waiting for the off chance that you are right.

      Good point. The only reason I would wait would be for the price to come down. Of course the only way that will happen, will be for a better chip release, so I will then wait for that price to come down again. If I need that much cpu power, I need it now and won't mind paying the premium price.

      However, at this stage in my life I can't aford the latest and greatest chip, so I buy the last year's (or 2 years ago) model. Since my computer is used for personal used only, I can get away with it. Sure I could get that family video rendered 5 min. faster with the new chip, but the mortgage and the kids schooling comes first.

  2. Having used a Intel Dual Core for awhile ... by Sonic+McTails · · Score: 4, Informative

    I have to say the Intel Dual Core Processor is quite impressive. It's fast enough to run just about anything I throw at it, and still keep chugging, but I believe that the article negects the fact that the dual core processor runs extremely hot vs other Intel processor. My old Sony VAIO never got as hot as my MacBook Pro does, and it is something that should be considered.

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    1. Re:Having used a Intel Dual Core for awhile ... by TERdON · · Score: 1, Funny

      You're not even close to how a Prescott would feel in a laptop...

      The Vaio AFAIK contains a Pentium M - which means they're on the very cool end of Intel processors.

      --
      I have a really elegant proof for Fermat's last theorem. If this sig was only a bit longer...
    2. Re:Having used a Intel Dual Core for awhile ... by castoridae · · Score: 1, Insightful

      My old Sony VAIO never got as hot as my MacBook Pro does, and it is something that should be considered.

      How important is heat, really? Assuming that the machine has been engineered sufficiently well to prevent the processor from melting down, I think it's a minor consideration at most. I agree that my MBP can get hot, and I knew that from reviews before I bought it. But I never even considered not buying one because of the heat, and I can't imagine that heat is a serioius consideration to 99.9% of laptop buyers. And no consideration at all to desktop buyers (and in server rooms where it is a consideration... they'll have an A/C system anyway).
       
        I doubt Intel is going to lose any customers because their chip gets too hot.

    3. Re:Having used a Intel Dual Core for awhile ... by phrasebook · · Score: 2, Informative

      How important is heat, really?

      Heat is a huge consideration to many people, often the deciding factor.

      Assuming that the machine has been engineered sufficiently well to prevent the processor from melting down

      It doesn't matter how well the machine is engineered. If you have hot componentry you'll have a hard time getting rid of the heat without making a lot of noise, especially under load.

      But I never even considered not buying one because of the heat

      What choice did you have? With laptops (especially Apple) you basically take what you can get. There's very little mention of heat or cooling considerations at all.

      And no consideration at all to desktop buyers

      I bought an Athlon X2 solely because it runs much cooler than the P4.

      and in server rooms where it is a consideration... they'll have an A/C system anyway
      The consideration is power consumption. More heat means more power draw means more expensive.

      I doubt Intel is going to lose any customers because their chip gets too hot.

      They lost me in the last round. Thankfully they're finally about to put the P4 to rest and we can get back to the good old P3. I mean, P-M. I mean, 'Core'. Whatever.

      By the way, once you start caring about heat (and you will!) go here for starters: http://www.silentpcreview.com/

    4. Re:Having used a Intel Dual Core for awhile ... by gb506 · · Score: 1
      Mod this turd down. I type this on a MBP and the thing is comfortably cool. I get close to 3 hours of battery life on a regular basis. It kicks the crap out of my old PBG4 1.67ghz, app for app, in universal binary, and except for Adobe and Microsoft apps, nothing I run is PowerPC. But what I CAN run, now, is Parallels and Win XP at near native speeds, simultaneously w/ MacOSX.

      Go flush yourself, troll, you're stinking up the room.

    5. Re:Having used a Intel Dual Core for awhile ... by NutscrapeSucks · · Score: 2, Informative

      There's not a huge difference between Pentium-M and Core Duo due to the dieshrink.

      Pentium-M 2.26GHz 90nm 27W
      Core Duo 2.16GHz 65mn 31W

      Of course, there's low-watt versions of all of these.

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    6. Re:Having used a Intel Dual Core for awhile ... by Surt · · Score: 2, Insightful

      I have a dell inspiron 9300. They designed it so that the fans don't go up to high speed until it gets really hot (to keep the noise down I assume). Unfortunately, that means it reaches lap scalding temperatures before the fan comes on to cool it off. So although it is a 'laptop' it cannot actually be used on the lap for more than 15 minutes without injury. So heat does matter to some extent. My next laptop will not have this problem, because I won't buy one that does.

      --
      "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
    7. Re:Having used a Intel Dual Core for awhile ... by Sonic+McTails · · Score: 1

      I should have stated I use an older VAIO which has a Pentium III and ran extremely hot, and then I used a newer one for awhile, which I believe was a P4M, and it made my P3 feel cool.

      --
      This signature was left intentionally blank.
    8. Re:Having used a Intel Dual Core for awhile ... by ZombieRoboNinja · · Score: 1

      Never used the VAIO, but this may have more to do with the aluminum case of the PowerBook than the processor itself. It really lets you FEEL the heat!

    9. Re:Having used a Intel Dual Core for awhile ... by TERdON · · Score: 1

      Key word in my answer: Prescott . You just skipped that word did you?

      None of the Pentium M processors uses a Prescott core, with a TDP in the ranging from 84 to 115 W. As I said, Core Duo isn't even close...

      --
      I have a really elegant proof for Fermat's last theorem. If this sig was only a bit longer...
    10. Re:Having used a Intel Dual Core for awhile ... by ooze · · Score: 1, Offtopic

      One of the worst things about the Intel switch is that we will never see a laptop (or desktop) that runs MacOS X with one of those.

      A good slim laptop with 10 hours battery life may have been possible.

      --
      Just because I can imagine doing a hippopotamus, doesn't mean I'd like to do it.
    11. Re:Having used a Intel Dual Core for awhile ... by TERdON · · Score: 1

      Ok, you're still not close to the desktop processors though (which TFA refers a lot to - it tests the Core Duo not only against laptop processors, but against desktop ones as well, and one of the conclusions is that Core Duo beats even the Pentium XE at most times - which is the Intel flagship).

      --
      I have a really elegant proof for Fermat's last theorem. If this sig was only a bit longer...
    12. Re:Having used a Intel Dual Core for awhile ... by Phroggy · · Score: 4, Insightful

      They have pathetic battery life after all the bragging Jobs did at last years WWDC.

      The impression I got was that Jobs was trying really hard to avoid mentioning the battery life; the MacBook Pro was still in development and all they had were prototype models, so they actually didn't know what the battery life would be; they were guessing it should be "about the same" (as the PowerBook G4).

      They are slow. My old G4 laptops kick the shit out it for media type tasks, about the same for single thread performance, and of course are slower for multi-threaded tasks.

      Are you running all native applications? If not, it's not a fair comparison (and if you really need apps that aren't available natively yet, maybe you shouldn't have bought one yet). If you are running native apps, your experience seems to disagree with most reports I've heard.

      It seems the speed most people are claiming for the MacBook Pros is due more to the faster video cards and the silky smooth desktop acceleration people weren't use to with their old G4 machines.

      I'm really looking forward to this.

      It is depressing to think that if Apple hadn't pissed off IBM that we could be running much faster/cooler dual core 970 PowerBooks right now.

      If Apple hadn't pissed off IBM? When the G5 was released, Apple announced that they had 2GHz then, but would have 3GHz in one year. What was Apple supposed to do when that never happened? Just wait and hope that IBM figured out how to make something work?

      Instead dual boot AMD Windows/Linux systems are looking like the only option for people who don't want to pay twice as much for x86 hardware.

      Show me a laptop with comparable specs for half the price of a MacBook Pro. I think you're trolling.

      --
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    13. Re:Having used a Intel Dual Core for awhile ... by NutscrapeSucks · · Score: 1

      I was responding to your comments on the Pentium M. Go back and read your own comment.

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    14. Re:Having used a Intel Dual Core for awhile ... by Midnight+Thunder · · Score: 3, Informative

      In a unit like the iMac, where there is plenty of air flow around the case heat is less of an issue, and you are not likely to spend your time with your hand on it. In a portable heat is a big issue, since the under side has zero air flow when on a desk, and on the upper side where heat is going to be noticed your hands are resting, for large amount of time.

      Also, heat can actually reduce the life-span of components.

      --
      Jumpstart the tartan drive.
    15. Re:Having used a Intel Dual Core for awhile ... by darkwhite · · Score: 4, Insightful

      How important is heat, really?

      Extremely important.

      It's blindingly obvious why it is important in laptops - not only because of battery lifetime, but also because the cooling assembly size and weight depends on TDP, and of course for user comfort considerations. Intel started a mobile CPU revolution with the Pentium M, so it's a little disappointing to hear that its latest successor doesn't improve further.

      It's just as blindingly obvious why heat is terribly important for servers, where rack heat and power density has long been the limiting factor to packing more servers into less space.

      On desktops, to me personally, heat is a premier consideration when choosing any chip. I have no need for something twice as fast as my current CPU if it consumes twice the amount of power. I expect better.

      --

      [an error occurred while processing this directive]
    16. Re:Having used a Intel Dual Core for awhile ... by Tim+C · · Score: 1

      I bought an Athlon X2 solely because it runs much cooler than the P4.

      That was also one of my reasons for buying an X2 rather than an equivalent P4.

      The consideration is power consumption. More heat means more power draw means more expensive.

      Don't forget it's a double hit - not only does the chip consume more power, but the air conditioning needs to be more powerful too.

      They lost me in the last round.

      They lost me for a couple of reasons, and heat was one of them. Before that, all my (PC) CPUs were Intels.

    17. Re:Having used a Intel Dual Core for awhile ... by TERdON · · Score: 1

      I was responding to your comments on the Pentium M. Go back and read your own comment.

      Please, do it as well, as you don't seem to have read what I wrote at all. I did a comparison of the Pentium M to the Prescott, saying they weren't even close in TDP. It is a comment on the Pentium M, yes, but not only. The Pentium M variants you mentioned are so close to the Core Duo that the difference is negligible in comparison with the difference to the Prescott cores, basically, you dismissed my comparison without even reading it properly.

      --
      I have a really elegant proof for Fermat's last theorem. If this sig was only a bit longer...
    18. Re:Having used a Intel Dual Core for awhile ... by Chabil+Ha' · · Score: 1

      How important is heat, really?

      Well, in a notebook--it's very important to my posterity.

      --
      We're all hypocrites. We all have hidden parts, it's the contrast between them that make us more a hypocrite than others
    19. Re:Having used a Intel Dual Core for awhile ... by Anonymous Coward · · Score: 0

      Heat is wasted energy. For a laptop, this means lower battery life both because of the power being wasted and the power used to cool a hot processor. In addition, there are noise, comfort, and service life considerations.

    20. Re:Having used a Intel Dual Core for awhile ... by WinDoze · · Score: 1

      That's the fault of the MacBook Pro in my experience. Have a MBP and a Dell Inspiron E1505 with the same Core Duo CPU. The Dell works on my lap, the MacBook works on the desk ONLY.

    21. Re:Having used a Intel Dual Core for awhile ... by Tibor+the+Hun · · Score: 1

      I am one of those people who would not buy a hot laptop.
      I had a 15" AMD+ATI laptop once and it was so unpleasant to use. My wrists would get hot and sweaty, which in turn would get the laptop all sweaty.

      I have since switched to a 12" laptop with a cooler CPU and couldn't be happier with it. No more hot wrists, no more stinky laptop...

      --
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    22. Re:Having used a Intel Dual Core for awhile ... by mdboyd · · Score: 1

      According to some comments on New Egg, the Pentium Extreme Edition runs fairly hot as well: http://www.newegg.com/Product/Product.asp?Item=N82 E16819116246

      It does run extremely hot. I replaced a 3.73 Pentium 4 EE (single core) which would regularly give me between -4 to 0 celsius on my peltier cooler but this Presler proc averages around 2 to 8 celsius ... More depending on idle or load (not overclocked).

      While I don't think it's a big deal for a desktop processor to run hot, when you put a hot processor in a cramped case like that of a laptop you can easily run into overheating problems. I've seen several laptops that can overheat regularly because the Pentium 4's they had just ran to hot, even with the fans running full blast they could sometimes overheat and shut off. Yes, some of this is due to poor designing on the computer manufacturer's part but I still think that heat can hurt the lifespan of your processor.

    23. Re:Having used a Intel Dual Core for awhile ... by NutscrapeSucks · · Score: 1

      Yeah, your comments on Prescott were correct, but also totally uninteresting because there's not exactly a lot of Prescott laptops out there. Also, you should calm down about replies that don't fit your preformed model of correctness. This is Slashdot after all.

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    24. Re:Having used a Intel Dual Core for awhile ... by DRM_is_Stupid · · Score: 1

      My old Sony VAIO never got as hot as my MacBook Pro does, and it is something that should be considered.

      A MacBook Pro refers to a very specific PC, while VAIO can refer to several different kinds of PCs spanning years. For example, I doubt the MacBook Pro can be much hotter than the VAIO laptop I purchased way back in 1998.

    25. Re:Having used a Intel Dual Core for awhile ... by Anonymous Coward · · Score: 0

      "Show me a laptop with comparable specs for half the price of a MacBook Pro. I think you're trolling."

      Uhh, www.dell.com

      Just a day or two ago I watched someone price out a Mac and Dell. The MacBook was somewhere in the 2400 range and the Dell came out at 1200 for roughly comp systems.

      The only way you can't get a Dell for half the price of a MacBook is if you do the equiv of buying all your RAM right from Apple.

      OS X + bundled apps + pretty packaging + Apple specific goodies/features have to get paid for somehow.

      Even worse are Apple's monitors where you end up paying around twice as much for a worse monitor than what you can get from Dell.

      Apple fans are living in a fantasy world if they think Apple is going to be gaining anything other than a statistical blimp in marketshare.

    26. Re:Having used a Intel Dual Core for awhile ... by rekoil · · Score: 2, Interesting

      Let me interject here - I own a dual 1.8GHz G5 tower. Anyone who's looked inside one of these things has the same initial reaction - "god, those heatsinks are HUGE!". And while it's very quiet while idling, it does get noisy when it's under load. And you can feel the heat coming out the back if you put your hand back there. It's almost as bad as the dual Athlon XP system I used to have that would literally heat the room.

      By contrast, I just got an IBM ThinkCentre desktop system at work, featuring a dual-core 2.8GHz Pentium D running Linux. The heatsink is a reasonable size, and the CPU fan is actually on the front of the tower chassis with a duct guiding the air over the CPU's heatsink. This thing is practically silent, and even when compiling a kernel with-j4 set you can't feel much hot air coming out the back.

      The moral of the story is that IBM was waay behind Intel on the performance-per-watt game and had no signs of being able to catch up. People knew this well before the Intel switch was announced and so far there's no sign of Apple being proved wrong.

      That said, anyone have any info on the heat dissipation on the dual-core G5s vs. the single core CPUs?

    27. Re:Having used a Intel Dual Core for awhile ... by swtaarrs · · Score: 1

      Try using i8kfangui. You can control the fan speeds manually or set bounds and have it control them automatically. It hasn't been updated in a while but it works fine on my 9300.

    28. Re:Having used a Intel Dual Core for awhile ... by planetmn · · Score: 1, Interesting

      Dell Inspiron E1505
      CoreDuo 1.83GHz, Windows Media Center (with recovery CD), 1GB RAM (vs. 512MB), 15.4" 1680x1050 widescreen SXGA+ (vs. 1440x900), 80GB SATA, DVD+/-RW, 802.11, 128MB ATI X1300 (vs. 128MB X1600), 85WHr battery (vs. 60WHr), 1 year warranty for $1342 (vs. $1999 so 33% less). Dimensions are close (same width, Dell is 0.5" taller, about an inch deeper, and 0.5lbs heavier). Pretty close comparison. Is it twice as much, no, is it a substantial increase, yes. I'm sure somebody will post "but what about iLife, etc.?" Sure, there are difference, and there are reasons why the cost is more for the Mac, but it's not "free" software if you are paying more to get it included. Personally, I think Macs cost quite a bit more than PCs, but if it's worth it to you, then buy it, if not, don't.

      Inspiron 6400 with same specs as above (but only 512MB RAM) is $1292 (35% off of the Mac price). The price differences get even higher when comparing to the $2500 MacBook Pro.

      BTW, upgrade to 256MB X1400 for $80.

      -dave

      --
      /., where "Apple and Google provide Iran with nukes" will be refuted with "But Microsoft is a convicted monopolist"
    29. Re:Having used a Intel Dual Core for awhile ... by NutscrapeSucks · · Score: 1

      Intel started a mobile CPU revolution with the Pentium M, so it's a little disappointing to hear that its latest successor doesn't improve further.

      But they have. The Core Solo uses less power than the Pentium M and is faster.

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    30. Re:Having used a Intel Dual Core for awhile ... by onelungwonder · · Score: 1

      If you ever use your laptop while it sits on your lap for an extended period of time, you will understand how heat can be an important factor for some people.

    31. Re:Having used a Intel Dual Core for awhile ... by stunt_penguin · · Score: 1

      Sorry to ask a mildly offtopic question, but can someone please put the intel and AMD chips in an approximate list in terms of their overall speed? I'm being mildly confused by the Centrino ( though that's not a processor, but a technolog), Pentium M, Core Duo and mobile athlon 64 confusion. Which processora are fastest, and at what cost?

      --
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    32. Re:Having used a Intel Dual Core for awhile ... by NetJunkie · · Score: 1

      Not sure this is a Duo problem. The new Thinkpad T60s with Duos we just got in get nowhere near as hot as my MacBook Pro. There are times I can't touch part of the case on the MBP for longer than a second. The Thinkpads aren't anywhere near that hot, just a little warm.

    33. Re:Having used a Intel Dual Core for awhile ... by AddressException · · Score: 1

      Heat is wasted energy

      Maybe you should go read up on thermodynamics!

    34. Re:Having used a Intel Dual Core for awhile ... by treeves · · Score: 1

      Almost three hours!? I get nearly six on my ThinkPad T43. I'm glad you're happy.

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
    35. Re:Having used a Intel Dual Core for awhile ... by gb506 · · Score: 1

      It's more than enough for me...

    36. Re:Having used a Intel Dual Core for awhile ... by Anonymous Coward · · Score: 0

      Seconded!

      And now for his prize: </i>

    37. Re:Having used a Intel Dual Core for awhile ... by Babbster · · Score: 1

      What you're asking is exactly what the linked article does...it puts a wide variety of CPUs through their paces with particular attention to the Core Duo. Just read the article and then check out Newegg and you should have a good concept of price v. performance.

    38. Re:Having used a Intel Dual Core for awhile ... by Anonymous Coward · · Score: 0

      R T F A

    39. Re:Having used a Intel Dual Core for awhile ... by Hal_Porter · · Score: 1

      How important is heat, really?


      Humans choose breeding partners based on their 'hotness' as far as I can tell.
      --
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    40. Re:Having used a Intel Dual Core for awhile ... by Moofie · · Score: 1

      Calculating waste heat was a significant fraction of my study of thermodynamics. What are you trying to say?

      --
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    41. Re:Having used a Intel Dual Core for awhile ... by LWATCDR · · Score: 1

      Yes heat matters a lot.
      1. More heat means power power use. So for a notebook less battery life.
      2. More heat means more cooling costs. Imagine the cost of cooling a datacenter with 1000 cpus if each dumped used 90 watts of heat? That is 90,000 watts of heat that you have to pay to get out of your machine room! That would add up not just in power bills but in the size of the AC unit. At some point you might even have to build a new machine room or move to a new building.
      Imagine an office with even just 100 PCs again the cost in power and cooling are significant.
      3. More heat means less speed. When you increase the clock speed you increase the power used unless you have a redesign or go to a new process.
      4. More heat means more noise. Not a good thing for a Media-center or MythTV box.

      --
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    42. Re:Having used a Intel Dual Core for awhile ... by Senjutsu · · Score: 2, Informative

      Intel started a mobile CPU revolution with the Pentium M, so it's a little disappointing to hear that its latest successor doesn't improve further.

      Wha?? Did you even glance at the article?

      The Core Solo uses the same power as the Pentium-M to deliver more performance. The Core Duo uses slightly more power than the Pentium-M to deliver a lot more performance. Ergo, the performance per watt figures in both cases are better than the Pentium-M's.

      In what sense, exactly, does the Core (Yonah) series not continue making improvements on its predecessors?

    43. Re:Having used a Intel Dual Core for awhile ... by dfgchgfxrjtdhgh.jjhv · · Score: 1

      how many processors have ever died on you without physical damage?

      in over 15 years of using pcs, including nearly 5 as a network admin, in charge of many computers, i've never seen a processor die from overheating, or from anything other than physical damage.

      ive seen every other componant die, multiple times, never seen a cpu die in normal use, overheating or not.

      i dont even know anyone thats ever had a dead cpu.

      heat from a cpu can help to reduce the lifespan of other componants (hard drives, etc), if the heat isnt removed from the case well enough, but the cpu will just crash when it overheats, then be fine again once its cooled down.

    44. Re:Having used a Intel Dual Core for awhile ... by lpq · · Score: 1

      Heat is a very important in the earlier failure of notebook computers when compared to desktops.

      Increased heat from 50C to 90C is about a 12% increase in stored thermal energy (363K/323K =~ 1.12). That minor increase in energy is enough to add additional "excitement" to the insulating traces between adjacent circuits in the IC. As circuits are shrunk, that trace grows thinner, and as traces have narrowed, IC makers have had to use lower voltages to not short-circult those traces and different semiconcuctor materials.

      The other probem with heat: thermal expansion. The greater the heat, the more most materials expand. On a circuit level, things only have to expand just enough to cause two conductors to develop a hairline separation. Open circuit = no juice => bad.

      Such failure modes increase as function of temperature and the amount of time spent at higher temperatures. I'm sure I'm not the only one who has had experience with a heat-sensitive laptop: they get too hot, they lock up. A friend of mine had this problem on her laptop sitting on a desk. I propped up the back end of her computer (tilting her keyboard and making that a bit more ergonomic in the process) and took a small cooling fan (120V), plugged into an AC adapter. Her computer lockup problems "went away" when she used the extra cooling.

      I find it amazing the heat that is tolerated in a laptop, that would be considered "not good" in a desktop or server system. Dell has historically had problems with heat and fans coming on too often. They "fixed" the noise by raising the temperature threshold for various fan-increase events. Users had to come up with 3rd party Fan control utilities to override Dell's overly hot settings. While these laptops woudn't outright "crash", the CPU's would easily get to 75C where they would start auto-throttling due to overheating -- reducing performance noticably.

      Heat: bad. And I've seen many more laptops with heat problems than in other system types.

    45. Re:Having used a Intel Dual Core for awhile ... by TERdON · · Score: 1

      Yeah. This IS Slashdot, so sorry. My comments still were valid (TFA talks a lot about the possibility to use the Core Duo not only in laptops, but in desktops as well), but of course I didn't think of teh simple fact that noone (except me sometimes) on /. reads TFA. ;-) Peace, love and Elvis? :-)

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    46. Re:Having used a Intel Dual Core for awhile ... by Savantissimo · · Score: 1

      The heat on a MBP is all on the bottom toward the front of the laptop in a patch a couple inches on a side. It isn't really all that hot, either, unless you have that patch flat against your leg. It is hot enough that wearing shorts might be uncomfortable, though.

      --
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    47. Re:Having used a Intel Dual Core for awhile ... by Kyro · · Score: 1

      I have an IBM ThinkCentre at work with a single intel prescott 3.0 GHz. When compiling or anything computationally intensive (it runs GNU/Linux too) sensors indicate 75 degrees C and it sounds like a jet taking off. Not to mention to uncomfortably warm air streaming out the back of the unit.

      --
      save the GNUs!
    48. Re:Having used a Intel Dual Core for awhile ... by Anonymous Coward · · Score: 0

      That's true, most older stuff from Apple used to cost a lot more than a comparable PC (at least where I live), but I've actually seen MacBooks being sold for less than Sony Vaios with similar specs. That said, they're not cheap, but it's not like MacBooks are on the low-end side of the laptop market.

    49. Re:Having used a Intel Dual Core for awhile ... by Anonymous Coward · · Score: 0

      amen brother, amen.

    50. Re:Having used a Intel Dual Core for awhile ... by texaport · · Score: 1
      The Core Duo uses slightly more power than the Pentium-M to deliver a lot more performance.

      The T2500 benches 1:1 with a SemprOn 3100+ running Prime95 versions 24.1x

      Given the absolutely enormous advantage Pentiums have had in the last six years
      over Athlons with this test, I am underwhelmed. 1024K cache vs 128K I believe.

    51. Re:Having used a Intel Dual Core for awhile ... by rco3 · · Score: 1

      Huh.

        I've been looking (seriously looking) for a new notebook for a few weeks now, and I'm not seeing much of a price difference at all in the high end. I just now - just this moment - spec'd out an Inspiron E1505 and a MacBook Pro as identically as I could get them. I'm not interested in a low-option stripper, so I'm not settling for 1 GB or an 80 GB.

      The specs, matched as closely as I could get them:

      Core Duo T2500 2GHz
      2 GB DDR2/533 (667 on the Mac, but who's counting?)
      15.4" Ultra-mega-Super-Duper-Sharp display with genuine Diamonique inlay(1680x1050 Dell, 1440x900 Mac)
      100 GB 5400 rpm SATA
      DVD burner
      Wireless A/B/G and Bluetooth (yes, even on the Dell)
      53 W-hr battery (on the Dell vs. 60 Mac, trying to compare oranges to oranges here)
      128 MB ATI X1300 (X1600 Mac)
      iWork or Office Basic (again, as close as I can get - I'd dump 'em both, but the Dell won't let me)
      3 year warranty (Applecare in Mac price)

      The final tally?

      Dell $2486
      MacBook $2857

      And, as you pointed out, the Macbook is 33% thinner, an inch smaller, and weighs 1/2 lb less. It's also not a Dell. The Dell does have a better-spec'd screen. The Dell isn't available in a 2.16 GHz at all. Nor does it have the backlit keyboard, which I'm very fond of. Built-in camera? Not that I can tell. Also, you can easily run OS X, Windows, or Linux on the MacBook. Can't say the same for the Dell.

      There is a cost difference, certainly, but it's not as large when you start looking at the faster notebooks. Once we get to the $2500 range, the extra $369 to upgrade from a Dell to a MacBook seems like a bargain. Having acquired a 1.66 GHz Core Duo Mac Mini and an Athlon X2 4600 (Win XP) desktop in the last 10 days, I have to say I'd pay the extra $300 JUST for OS X. The fact that the hardware on the Mac is nicer than that of the Dell is, to me, lagniappe.

      Needless to say, the "half-price" thing is simply bullshit. You CANNOT find a notebook with those specs for anything close to $1450, unless you know Tony Soprano.

      --

      Ce n'est pas un vrai mouvement de robot!
    52. Re:Having used a Intel Dual Core for awhile ... by Kabal` · · Score: 1

      I had a celeron 266mhz die after about 5 years of running at 500MHz or so :)

    53. Re:Having used a Intel Dual Core for awhile ... by dfgchgfxrjtdhgh.jjhv · · Score: 1

      are you sure it was the cpu, not the motherboard or something else?

      thats really the first i've heard of.

      if it's truely dead, i'd keep it, just for the novelty value.

      i've had a 1ghz athlon running at 1.33ghz for over 5 years now, almost 24/7, i've had to replace a dead motherboard, & a dead hard disk from that system in that time, but the cpu is still good as new. it was sold half price as 'b-grade' too, as it had a few marks on the core.

      I overclock cpus whenever i can.

      i had a power supply blow in an old cheap system, it took out the motherboard, hard disk & most of the rest of the computer, even the cpu fan, but the cpu was still fine. i've rescued several cpus from otherwise dead systems & they all worked fine.

      i cant say cpu death is something i worry about, no matter how much a system overheats, they normally last a lot longer than their useful lifespan.

    54. Re:Having used a Intel Dual Core for awhile ... by Archibald+Buttle · · Score: 1

      Yeah, we're told that IBM did promise Apple 3GHz chips, and they failed to deliver.

      However the contention that Apple pissed off IBM is in part true. It's been fairly widely reported that Apple only ever placed small orders for G5 chips from IBM. Since because Apple insisted on being a small customer IBM couldn't commit it's fabs to large runs of G5 chips.

      A side effect of this were shortages of G5 Macs, since Apple would sell them faster than IBM could deliver their orders.

      Had Apple bitten the bullet and ordered large volumes of G5 chips there would have been more reason for IBM to commit resources to improving the G5 chip since they would have had clear guarantees that they would sell the chips.

      As it goes, IBM went with the large orders - Microsoft, Sony, and Nintendo - projects that guarantee to keep their fabs busy, and the money flowing in.

    55. Re:Having used a Intel Dual Core for awhile ... by planetmn · · Score: 1

      That's really odd, because I just priced out the E1505 spec'd as you have above, including discounts available today (which is one advantage of non-Mac, prices do change, and do come down). Here's what it came up with:
      E1505
      Core Duo T2500 2GHz
      2 GB DDR2/533
      15.4" SXGA+
      100 GB 5400 rpm SATA
      DVD burner
      Wireless A/B/G and Bluetooth
      53 W-hr battery (85WHr is $100 more)
      128 MB ATI X1300 (256MB X1400 is $80 more)
      Corel Wordperfect (MS Works is $100 more, Office is $149 more)
      3 year warranty (accidental damage is $119 more for the three years)

      Total price is $1597 after discounts. Compared to your $2850 MacBook, about a 44% difference, almost half price. Now, a big part of this is a "$750 coupon" that Dell has available for today. While definately more than usual, it's not unusual for these laptops to be $300-$400 off of the "normal price." It's kind of like cars. MSRP doesn't mean much, since for the most part, it's not what you pay.

      Add the better battery, better graphics card, office and accidental damage protection, and you're at $2050. Compared to your $2857 MacBook Pro, about a 30% difference.

      My point is, the argument that PCs are just as expensive as Macs is ludacris. Macs cost more than PC's similarily equipped. But that doesn't mean that it is an unjustified difference.

      -dave

      --
      /., where "Apple and Google provide Iran with nukes" will be refuted with "But Microsoft is a convicted monopolist"
    56. Re:Having used a Intel Dual Core for awhile ... by rco3 · · Score: 1

      Just did it again. Came up with the same number I did before. Don't have a $750 coupon. Obviously we're getting those Dell quotes from different sections of their website, because Corel wasn't an option for me. I did have a "$200 off Instantly!" discount applied. I'm curious to know what route you took to get that pricing, because Dell aren't giving me that pricing. I tried going through education store, and that got me down to $2200 (mostly because I could then dump Office). I still can't duplicate the prices you found for that hardware.

      --

      Ce n'est pas un vrai mouvement de robot!
    57. Re:Having used a Intel Dual Core for awhile ... by planetmn · · Score: 1

      I went through the link on techbargains.com, which is where they listed the coupon as well.

      -dave

      --
      /., where "Apple and Google provide Iran with nukes" will be refuted with "But Microsoft is a convicted monopolist"
    58. Re:Having used a Intel Dual Core for awhile ... by PipsqueakOnAP133 · · Score: 1

      I'm posting from a MBP RevD, and have taken to naming it evilBook to the chagrin of my coworkers. While it's got major coolness and performance compared to other WinXP machines while running XP, it's not what I've come to expect as a Mac user. I am running all native apps (or at least for the apps that matter since sometimes I have to do testing on old versions). This thing's just got all sorts of issues.

      While it is definetely faster than my old PB G4 12" 867, it's also much hotter than anything I've seen. It's hot in OSX, it's blazing hot in WinXP. I don't know what else to say except it's just not acceptable.

      When running native apps, it's usually is fine but periodically will stop responding. Onscreen clocks, the mouse cursor, all apps, will stop responding for around 20 seconds and all of a sudden resume. Imagine doing something and seeing what appears to be a system freeze for 20 seconds franticly thinking about whether or not you saved all your text editor windows.

      Sleep on battery exhaustion seems to be unreliable, it's powered itself down instead of sleeping a few times, losing everything in memory.

      When running native apps, it seems barely faster than my old G4 powerbook. When doing performance tests at work, this thing still doesn't clock in as fast as the dual 2.0 g5 on my desk. (yes I'm using a gig of ram here, way more than my app needs, so it's got nothing to do with swap, and my apps arn't video card dependent.) In general, this thing doesn't feel any faster than the quicksilver dual 1ghz that I use at home.

      The only time this thing has impressed me at all, has all been related to the video card (games and movie playback) and the backlit keyboard cuz I didn't have one of those before. All in all, I think I would have been much happier if they released a MPC8641D based Powerbook first.

  3. Depends by 2.7182 · · Score: 4, Informative

    I would argue that the 8080 was. If you normalize for date/speed that is...

    1. Re:Depends by Anonymous Coward · · Score: 0

      Or perhaps the Z80 ? That was the processor of the reliable/venerable TRS-80! Now that was a robust machine. I think the 8080 was used in the higher end TRS models.

    2. Re:Depends by SpinyNorman · · Score: 1

      I think the 6502 was clock-for-clock faster.

      True fact: The minimalistic 6502 (which had been used in Acorn's BBC micro & predecessors) was the inspiration for the ARM RISC CPU (formerly Acorn Risc Machine, then renamed as Advanced Risc Machine).

    3. Re:Depends by Anonymous Coward · · Score: 2, Interesting

      I wrote micro interpreters at Infocom. My 1MHz Apple II 6502 interpreter was 80% fast as the 6MHz PC AT 80286 interpreter.

      drewk

    4. Re:Depends by Anonymous Coward · · Score: 0

      Definitely not -- using n-mos/p-mos technology, it was really power hungry for the performance it provided. I think Intel switched to c-mos for the 8085 at first.

    5. Re:Depends by neersign · · Score: 1
      "best" is a relative term and can be skewed for any marketing purpose, much like statistics. Technically, any new product should improve upon an existing product, otherwise there would be no reason for it, and anyone who would spend money on it is a sucker. Truly, the only way to claim "best chip ever" is if the new chip exceeds all previous chips in every possible comparison.

      therefore, the new coreduo is better than previous Intel revisions in some ways, but not in every way possible, so it is not the best chip ever.

    6. Re:Depends by Anonymous Coward · · Score: 0
      I think the 6502 was clock-for-clock faster.


      I like the 6502, it powered my first two machines (Vic and Atari 130XE).

      That being said, clock for clock when it comes down to getting work done on the 8-bit the 6809 dominated for that era. I had always wished that Atari went with this instead of the 6502 variant they chose.
    7. Re:Depends by SpinyNorman · · Score: 1

      The 6809 was a great processor, but it was really an 8-bit / 16-bit hybrid, so it seems a bit unfair to compare it to the 6502.

    8. Re:Depends by Gadzinka · · Score: 1

      We've been over this dozen times over. 8080, 6502, 68000 might be faster, normalized for clock, but...

      Go, buy 8080 with 2GHz clock and 64-bit-wide addressbus.

      Robert

      --
      Bastard Operator From 193.219.28.162
  4. CoreDuo != Core Microarchitecture by BobPaul · · Score: 4, Interesting
    It's not obvious from the article, but you can find it elsewhere on the internet (such as Intel's comment that the Core microarchitecture will provide 20% boost over CoreDuo). It is hinted at in the article with the following quote (emphasis mine).
    If you've been hanging around here for a while, you may have heard us referring to Core Duo by its code name, Yonah, long before Intel decided to give it a somewhat confusing official name. ... In the case of the Core Duo, those CPU cores are massaged and tweaked versions of the Pentium M processor, familiar as part of Intel's Centrino mobile platform.

    The new core microarchitecture, if you read the Ars Technica article in the previousl /. posting linked, was designed from the ground up and is similar to PentiumM in many respects, but is much more different than the CoreSolo and CoreDuo are.
    1. Re:CoreDuo != Core Microarchitecture by imsabbel · · Score: 1

      I was wondering on that myself, as i would have expected a "core" cpu to be even faster.

      Just for those who dont know, improvements in the "core"-core are stuff like twice the shedulers, superscalar sse-x with duplicated units (so 2 identical commands can be committed per clockcycle, no only combinations) and 4 integer units.

      But as much as i like those spec, the naming SUCKS. Yeah, the core architecture is new, but shouldnt be confused with the architecture of core duo, which is a dual core cpu, in contrast to amd dual core cpus which ar eof couse not core-cores... ARG
      Why the hell redefine common words?

      --
      HI O WISE PRINCE. WHT TOOK U SO DAM LONG?
    2. Re:CoreDuo != Core Microarchitecture by NutscrapeSucks · · Score: 1

      The conspiracy theory is that Apple didn't want to ship a "Pentium", so Intel rebranded their CPUs early. When the real "Core" chips come out, they'll probably have to call them "Core II" or "Core Extreme" or something equally silly.

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    3. Re:CoreDuo != Core Microarchitecture by MrFlibbs · · Score: 4, Insightful

      The new Merom-based products (Conroe is the desktop version) were *NOT* designed from the ground up. The Ars Technica article repeated some Intel marketspeak that overstates the case. Merom is a major revision of Yonah, but is derived from the same code base. In fact, it is still technically a derivative of the P6 family that began with the Pentium Pro 10 years ago.

      This is more than just a matter of semantics. The major micro-architectural features that defined the P6 are still present in Merom. The P4 architecture (may it rest in peace) was a brand new architecture -- Merom is not.

    4. Re:CoreDuo != Core Microarchitecture by MindStalker · · Score: 1

      Shit, they've been calling their chips P4s for how long.. Through how many architecture changes? Intels naming schemes are purly marketting, never about specs or architecture.

    5. Re:CoreDuo != Core Microarchitecture by NutscrapeSucks · · Score: 1

      All Pentium 4s have the same architecture, AFAIK. Admittedly there is the "Pentium-D", and the PII/PIII thing was dubious, but for the most part Intel's naming schemes stick to the architecture.

      Which makes this wierd especially because this is the biggest change in Intel's naming since the original Pentium came out, so they could have just waited 6 months.

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    6. Re:CoreDuo != Core Microarchitecture by Urusai · · Score: 1

      Code base? They use source code to design processors? The last time I visited a chip design facility (many years ago) they were drawing traces graphically.

    7. Re:CoreDuo != Core Microarchitecture by Anonymous Coward · · Score: 0

      how do you expect that they draw those traces, by hand? If I were them I'd be using a HDL with some sort of in house implementation program to do that for me. Then again drawing billions of transistors by hand might be fun.

    8. Re:CoreDuo != Core Microarchitecture by hobbesmaster · · Score: 1

      Code base? They use source code to design processors?

      He was probably thinking of Verilog, not knowing whatever method is used for designing big chips.

    9. Re:CoreDuo != Core Microarchitecture by Jerry+Coffin · · Score: 1
      Merom is a major revision of Yonah, but is derived from the same code base. In fact, it is still technically a derivative of the P6 family that began with the Pentium Pro 10 years ago.

      To those of us old enough to remember, it looks more like part of the family that started with the CDC 6600 over 40 years go. :-) For anybody who cares to look, Design of a Computer: The CDC 6600 (Warning: PDF), describes what may well be the greatest microarchitecture ever. It's by Jim Thornton, who was (to quote Seymour Cray): "personally responsible for most of the detailed design of the Control Data model 6600 system."

      Those who look through this book may also note a decided resemblance between the original Pentium and the CDC 6500 (which it also discusses to some degree).

      --
      The universe is a figment of its own imagination.
    10. Re:CoreDuo != Core Microarchitecture by uarch · · Score: 5, Informative

      Yeah, they use both HDL coding and EDA (cad-like) tools to design most microprocessors. The designs are too massive to design them by placing each wire manually - they haven't done that for _several_ generations (1980s? - not sure really)

      That's not to say there isn't a small army of design engineers at Intel and AMD who work with nothing but schematics - there are. Its just that most of the logic design work is done on the HDL coding level (with either VHDL, IHDL, Verilog, or some other tool). You only start dealing with schematics at a much later stage of development. Until then your designs are constantly changing and its infinitely easy/faster to change a few lines of HDL code than to re-write hundreds/thousands of wires and transistors.

      I've worked at both Intel and AMD in the past and in both cases you could take the entire codebase for a processor (HDL, microcode, ROM, etc), compile it with the right HDL compiler and run the entire thing with small test programs as a simulator. Thats how much of the validation/verification work is done before they make the masks.

      As for using the old code bases... That's done a lot. There's just too much complexity and too little time for them to re-write every processor from scratch. You also have countless hours invested in making sure previous designs work. If you're only doing small changes it would be hard to justfy building something from scratch since you'll have to do all of that validation work again.

    11. Re:CoreDuo != Core Microarchitecture by Anonymous Coward · · Score: 0

      You would be surprized at how much of the design of semi-conductors is just programming. Usually the only parts that are done graphically now are any analog circuits and the layout. The rest of the design is coded in Verilog or VHDL or some other hardware description language.

    12. Re:CoreDuo != Core Microarchitecture by Anonymous Coward · · Score: 0

      The last time I visited a chip design facility (many years ago) they were drawing traces graphically.

      Yeah- I can see that. I'd imagine that they wouldn't want to show the entire design process to the touring Cub Scout troops, so they would just emphasise the colorful drawings to keep the kids' attention.

    13. Re:CoreDuo != Core Microarchitecture by BobPaul · · Score: 1

      The new Merom-based products (Conroe is the desktop version) were *NOT* designed from the ground up. ... The major micro-architectural features that defined the P6 are still present in Merom. The P4 architecture (may it rest in peace) was a brand new architecture -- Merom is not.

      I think you've confused "designed from the ground up" with "threw out everything they knew and started over." The latter is what they didn't do, and the former means step back and decide the best way to organize the processor to meet our goal (multicored, fast, backward-compatible processors). Obviously they're still going to use x87 compatible FPUs and the like, and if those individual components are working fine then they won't be redesigned individually, just reconnected differently, which is key. The alternative is retrofitting, which is what the PentiumM was; some changes were made to the bus, but more or less features were just added.

      Redesigning the bus means that the set of microinstructions had been completely re-written. (That is, the set of 1s and 0s and assembly command expands to to control access to the internal databusses, issue load and execute instructions to adders, the fpu, etc) and that is a very big task. I would call this a redesign.

      If you're calling Merom a simple evolutionary step because it contains the same "major micro-architectural features that defined the P6" then you have to say the same for Netburst. You can't however, because neburst went pipeline crazy and Merom has made major changes to the internal data-busses. It's not as much about the individual features or components, it's about the interconnection of the components and the number of major components. Merom is more like PentiumM than it is like P4, but I wouldn't say it's a direct decendant of either.

      Have some Kool-Aid.

    14. Re:CoreDuo != Core Microarchitecture by Savantissimo · · Score: 1

      Warning: PDF
      er..196 page PDF - the good stuff starts around p.68 ...what may well be the greatest microarchitecture ever...

      400,000 discrete transistors - nothing micro about that architecture! ;)

      That would be what - maybe a die 0.3mm on a side today? maybe a bit over 1 mm**2 with all the memory? 65 nm process could give it a bit of a clock boost, too, I reckon. The hand laid-out traces on the circuit boards would still look better, though.

      --
      "Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery?" - Patrick Henry
    15. Re:CoreDuo != Core Microarchitecture by Anonymous Coward · · Score: 0

      > Merom is a major revision of Yonah, but is from the same code base. In fact, it is still technically a derivative of the P6 family
      [...]
      > This is more than just a matter of semantics.

      Well, actually it *IS* a matter of semantics, and a bit of a judgement call. There's no one attribute of a CPU you can look at and say "yep, it's now different than a P6" but when enough things change at once it's enough to signal a change.

      For the Yonah (aka Core Solo/Core Duo), it's unquestionably P6 architecture (just as the Pentium-M before it was) So yeah, don't believe the marketspeak on that one

      The Merom/"Core" architecture is pretty different... new instruction scheduler, different (although similar) pipeline, radically different memory-op reordering, different branch prediction, 64-bit ALU (which had been bolted onto Netburst but never the P6), etc It's still a lot closer to P6 than it is to Netburst (which isn't surprising since the consensus these days seems to be P6==good, Netburst==bad) but it's different enough in very fundamental ways that it (IMO) is clearly a new architecture.

      What *IS* terribly confusing is how Intel has decided to brand the Yonah chips as "Core {Solo,Duo}" even though they're not built on the new "Core" architecture.

    16. Re:CoreDuo != Core Microarchitecture by MrFlibbs · · Score: 1

      Merom reuses ~80% of the HDL code of Yonah. To you, the extent of the architectural changes in the new 20% justifies calling this a "from the ground up" design. To me, the term implies all the code was re-written from scratch. For the P4, this was the case. With Merom, some of the code from the original P6 is still present!

      This is not to trivialize the changes -- 20% new code on a microprocessor is a huge effort, and the design has now morphed into sometime far beyond the initial P6. At what point is it a "new" design? Maybe it is just a matter of semantics after all.

    17. Re:CoreDuo != Core Microarchitecture by Jerry+Coffin · · Score: 1
      That would be what - maybe a die 0.3mm on a side today? maybe a bit over 1 mm**2 with all the memory?

      It should be smaller than that in 65 nm. Just for one example, NEC claims 404,000 usable gates per square millimeter in a 90 nm process. A 65 nm process should theoretically cut the area in half. Of course, the only company I know of that even claims to offer 65 nm ASIC processing is IBM, and I'm not at all sure they have any customers for it. You have to plan on producing quite a few chips to justify the NRE on a 65 nm ASIC.

      If you were going to do memory, you might as well include the full 256 k words it could address, rather than the 128K words the 6600 could actually hold. After all, that's only about a megabyte, which fits on a die pretty easily nowadays...

      65 nm process could give it a bit of a clock boost, too, I reckon.

      You would certainly think so. In fact, there's a free (as in beer) emulator that runs under Windows. Though it's hard to compare speeds, I'd say the emulator generally runs faster than real hardware did.

      Come to think of it, it'd be interesting to see how well it'd work in an FPGA. It'd be pretty cool to see SCOPE running on a machine you can hold in one hand...

      --
      The universe is a figment of its own imagination.
  5. Hotter the Better by dueyfinster · · Score: 2, Interesting

    You're forgetting all those students with Laptops, one I know said his laptop was so hot, he'd leave it on his bed before going to sleep, as the accommodation had substandard heating (the norm for all student places, no?)

    --
    --- Duey Finster http://www.dueyfinster.com
    1. Re:Hotter the Better by Anonymous Coward · · Score: 0

      Of course, they have even worse cooling, so come summer you'll really be regretting the hot plate you've got lying around the dorm.

      I prefer to avoid using my computer as an impromptu source of heat. Though I'm now considering a liquid cooling rig designed to drive a small generator. ;-)

    2. Re:Hotter the Better by ronanbear · · Score: 1

      He was just viewing porn late at night but all in all it's not the worst excuse ever.

      --
      the more they over-think the plumbing the easier it is to stop up the pipe
  6. Even more reviews by adam1101 · · Score: 4, Informative

    More reviews here and here.

  7. Common Knowledge by John+Jamieson · · Score: 3, Insightful

    I thought this was commonly known or assumed. Is this news to many people?

    I thought that the only reason the P4 had not been totally abandoned already was that it takes time to switch directions in such a massive company. (and with so many partners that design around your product)

    1. Re:Common Knowledge by Pope · · Score: 1

      It's news for anyone who hasn't owned an x86 machine for over 10 years, and therefore never bothered to follow developments on the "other side."

      --
      It doesn't mean much now, it's built for the future.
  8. Obvious by rugger · · Score: 1

    Of course its Intel's best performing desktop processor. It is not like the P4 has set the bar particularly high, with the unfavourable heat production these processors have. Maybe if the P4 scaled as well as Intel initally hoped for, it would be a more difficult task to design a better processor.

  9. If those figures... by c0l0 · · Score: 4, Insightful

    ...actually show ANYTHING really well, then it's the absolute neglibility of recent synthetic benchmarks. Looking at the numbers SiSoft Sandra spills out, the clocked-to-the-brim Netburst-cores should take the performance-crown with ease in FPU and ALU-applications alike. In reality though, said CPUs hardly matter at all when it's about uncompromising peak-performance. I fail to understand why benchmark-suites this far away from reality still matter in reviews like this.
    Sad, in an awkward way.

    --
    :%s/Open Source/Free Software/g

    YTARY!
    1. Re:If those figures... by xenocide2 · · Score: 1

      Well, their application benchmarks aren't much better. They MANUALLY played to a specific point 5 times in F.E.A.R., and in BF2. The only timedemo was in ut2k4. It would have been interesting to see them repeat their efforts in the same manner and compare it against the timedemo results.

      --
      I Browse at +4 Flamebait

      Open Source Sysadmin

    2. Re:If those figures... by moro_666 · · Score: 1

      i didn't figure out the point of the whole article at all ...

      there were several tests where a single core turion cpu beated the core-duo thingy ... and they have nearly identical power usage (especially if you include the separate memory controller that intel probably still uses) ...

      and if it's a cpu which is meant to be 32-bit and not built for excessive tasks, why the hell does it have to be utterly fast in the first place ? most desktops don't lag behind the cpu, they lag behind the fragmented fat32/ntfs filesystems ;)

      if you do benchmarks, you look for raw cpu performance, regular desktops (or laptops) that this cpu is designed for, don't need such an enormous cpu power nor benchmarking the cpu power.

        in my home machine i'd rather have a via c7 which can run without a cooler, add a 10gb flash ata drive to it, a fanless psu (yep, since the system doesn't need much energy, this will do), and i have a noiseless media center. the c7 can play dvd movies from the flash drive without spinning one single thing.

        and if i'd want just raw power, i'd go for the 64-bit amdx2 right away, for some stuff, you need lots of gigabytes :D

        core-duo isn't fish and it isn't meat. it's rather attractive at first glance, but ultimately the king of nothing.

      --

      I'd tell you the chances of this story being a dupe, but you wouldn't like it.
  10. It's not that trivial! by VincenzoRomano · · Score: 0, Flamebait
    Good enough that Apple chose to put it in the iMac
    Flies like shit a lot. This doesn't mean that we should do the same!
    Core Duo actually seems to be a good architecture. Let's challenge it before any opinion!
    --
    Maybe Computers will never be as intelligent as Humans.
    For sure they won't ever become so stupid. [VR-1988]
    1. Re:It's not that trivial! by AnalystX · · Score: 1

      Opinion? I don't think stating that Apple thought it was good enough to use in their hardware is opinion. They ARE using the CPU in their hardware, and it would be ridiculous to assume Apple thought the CPU WASN'T good enough to use it in their hardware, but still did anyway. Circumstantial evidence of performance it may be, but opinion it is not.

  11. What? by plantman-the-womb-st · · Score: 2, Insightful

    Core Duo is a 32bit processor.
    Athlon 64 X2 is a 64bit processor.

    I care not how much power it uses or how well it runs Word or whatever else they are doing to test these things.

    The Core Duo cannot do the same things the Athlon 64 X2 can. Largely because (gasp) it cannot run 64bit code.

    What the hell is the point of this comparison?

    --
    Say bad words about my book, in cold oatmeal, or I shall sue!
    1. Re:What? by DrDitto · · Score: 5, Informative

      The reason for going to 64-bits is to increase the amount of physical address space, not for speed. The majority of applications, especially integer, do not benefit from bigger registers and wider ALUs.

    2. Re:What? by phrasebook · · Score: 1

      The majority of applications, especially integer, do not benefit from bigger registers and wider ALUs

      The point isn't that the registers are bigger, it's that there's twice as many of them

    3. Re:What? by Jeff+DeMaagd · · Score: 5, Informative

      Actually, x86-64 does have some speed benefits over standard ia32 for smaller programs and data sets in that it doubles the number of exposed registers. Most other archs were not register starved on the 32 bit version, so going 64 bit generally slowed the system down a bit because the pointer size doubled, taking more memory bandwidth to store pointers.

    4. Re:What? by Phroggy · · Score: 4, Insightful

      The Core Duo cannot do the same things the Athlon 64 X2 can. Largely because (gasp) it cannot run 64bit code.

      What the hell is the point of this comparison?


      You're correct, of course. However, many of us don't need to run 64-bit code. You can completely ignore this, because any 32-bit CPU doesn't fit your needs, but please try to understand that other people need different things.

      --
      $x='S24;r)>63/* h@<5+oZ)32"5cz';$me='phroggy'x$];
      $x=~y+ -xz+\0-Tx+;print$_^chop$me for split'',$x;
    5. Re:What? by Anonymous Coward · · Score: 4, Insightful

      The Core Duo cannot do the same things the Athlon 64 X2 can. Largely because (gasp) it cannot run 64bit code.


      I drive an 18 wheeler, and I can't imagine why anyone would want a passenger car. You can't haul near the same amount of goods!
    6. Re:What? by Anonymous Coward · · Score: 1, Informative

      Amm... working with large numbers sure does benefit from 64bits. For one, multiplying large numbers is at least 3 (yes, three) times faster! Also, Java (that uses lots of "long" types) is also generally 2-3 times faster---as well as Lisp, Haskell, etc.

      Of course, all these speed improvements only happen on the AMD's 64bit architecture---as the Intel's versions only provide the instructions, but still run just as slow as the 32bit version would.

    7. Re:What? by plantman-the-womb-st · · Score: 1

      I never mentioned speed at all. I do happen to run a lot of apps that make heavy use of the larger address space. Anyone who needs raw number smashing power will snort the same way I did when I read that they tested the Core Duo against any 64bit processor. Afterall, how many multi-socket rackmount Core Duo servers are on the market at the moment? None. Yes, this is the chip that will grace the desks of many an office worker, but popular has never meant superior.

      I'm just baffled why they tested a 32bit chip against a 64bit chip. It makes zero sense to even bother.

      --
      Say bad words about my book, in cold oatmeal, or I shall sue!
    8. Re:What? by darkmeridian · · Score: 4, Informative

      Hate to say this, but there are not that many uses for 64 bit processors yet. Manufacturers do not provide 64-bit drivers for their products. The drivers that exist are buggy. To the average Joe, 64-bit is useless. He doesn't need the extra horsepower for his Internet browser or word processor. Well, unless Vista comes out.

      --
      A NYC lawyer blogs. http://www.chuangblog.com/
    9. Re:What? by AKAImBatman · · Score: 1

      The Core Duo cannot do the same things the Athlon 64 X2 can. Largely because (gasp) it cannot run 64bit code.

      Such as? A 64 bit chip generally means that you'll be addressing gobs (>4GB) of memory. Since that isn't a concern at the moment, Intel hasn't rushed EMT64 into their laptop chips. However, EMT64 will be in the Merom processor, scheduled for late this year.

      AMD has both Turion and Sempron 64 bit processors available for mobile platforms, but you may notice that they are very difficult to find in new laptops. This would suggest that there is not much demand for high-end 64 bit CPUs in laptops right now. While that could change at any time, it does seem that Intel still has time to reach the market with a 64 bit laptop CPU before the matter becomes an issue.

    10. Re:What? by Jeff+DeMaagd · · Score: 1

      A desktop chip probably shouldn't have been compared against a laptop chip. Still, the X2 is a desktop chip, not a server chip, so I don't understand why you say "multi-socket" because there are no multi-socket X2 servers, they are Opteron servers, so you seem to be making it a comparison between a mobile chip and a server ship. There aren't many (or any) laptops that I am aware of that are available in 4+ GB of memory, so it's not important for that market yet.

      I do suspect that the number of people that need the larger address space is probably quite small compared to the number of laptop chips, but still, it's nice to know that the laptop chip is so powerful.

    11. Re:What? by Mark+Gillespie · · Score: 2, Interesting

      Who wants a EMT64/AMD64 in a mobile processor? it serves no purpose. I think the AMD fanboys are realising that the sleeping giant is waking up...

    12. Re:What? by ergo98 · · Score: 1

      Who wants a EMT64/AMD64 in a mobile processor? it serves no purpose. I think the AMD fanboys are realising that the sleeping giant is waking up...

      Given that the article is talking about using the processor on the desktop, it does seem to be an entirely pertinent point. Even in the mobile space, I just ordered a laptop with 2GB - the maximum available in the model. It seems odd that a new chip would come out today that supports close to the average new PC (even bargain PCs come with 1GB+ now) as an upper limit. While I never expect much future proofing in computer hardware, it would be nice if there were some headroom.

    13. Re:What? by Torne · · Score: 1

      Actually, x86-64 does have some speed benefits over standard ia32 for smaller programs and data sets in that it doubles the number of exposed registers.

      But unfortunately to *access* the extra registers, you have to use extra prefixes/suffixes on the instructions (because x86-64's instruction set is a strict superset), which makes them longer, which eats up more Icache. The small benefit of having the extra registers visible to the compiler is often reduced or squashed entirely by a few percent more cache churn =(

      The extreme out-of-order execution of modern x86 chips, and the fact that they have *way* more registers than are even exposed by x86-64, already takes care of this problem in quite a lot of cases (just keep values around in extra registers, defer all memory accesses as late as possible, and generally mess with the linear order until it all comes out in the wash *grin*).

    14. Re:What? by DrDitto · · Score: 1

      The point isn't that the registers are bigger, it's that there's twice as many of them

      Big deal. The number of physical registers is always larger than the number of architectural registers. Go read up on register renaming in out-of-order superscalars.

    15. Re:What? by Yvan256 · · Score: 0
      "Hate to say this, but there are not that many uses for 64 bit processors yet. Manufacturers do not provide 64-bit drivers for their products. The drivers that exist are buggy. To the average Joe, 64-bit is useless. He doesn't need the extra horsepower for his Internet browser or word processor. Well, unless Vista comes out."
      I guess that gives manufacturers 5 more years to debug their drivers...
    16. Re:What? by DrDitto · · Score: 1

      Yup, you make a good point. Plus engineering 64-bit datapaths is slower than 32-bit. However the lack of register space isn't a huge deal with out-of-order superscalars. Register renaming takes care of false dependencies and spilling/filling registers to the stack gets great locality and instruction-level parallelism because an L1 hit is pretty much guaranteed. Yes, it can make a difference because L1 hits take longer than register accesses...but Intel has proven that the x86 can perform just as well as RISC ISAs.

    17. Re:What? by Antiocheian · · Score: 1

      and you have been moderated as INSIGHTFUL for that posting???

      on SLASHDOT??????

    18. Re:What? by NutscrapeSucks · · Score: 3, Informative

      The "more registers" with x86-64 has been massively overhyped. There's very little real world benefit.

      For example: AMD's claims about UT2004 being 20% faster in 64-bit mode turned out to be bogus (more like 2%).

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    19. Re:What? by tomstdenis · · Score: 1

      I hate people like you. There are more benefits to x86_64 than just the friggin extra address lines.

      Consider how you write software now. At best you have a few GPRs to work with. Even with register renaming [which all modern x86 processors have] you get at best, let me repeat, at *BEST* serialized performance.

      Extra registers means you can do various things at once. Consider a simple loop like

      for (x = 0; x 1000; x++) {
            t[x].p[2*x] += s[x].q[3*x];
            s[x].q[3*x+1] += r[x].q[4*x];
      }

      Or some complicated pointer/array looking BS like that. in x86_32 world you may fight for registers to figure out the address of those objects, etc. In x86_64 world you would have enough registers. So both statements are executing at the same time.

      If you have to use the same registers, even through register renaming you can only run one at a time.

      The extra XMM registers give you the same benefit in the FPU world.

      So for the love of god and all that is holy, would you actually read the specs for a change?

      Tom

      --
      Someday, I'll have a real sig.
    20. Re:What? by tomstdenis · · Score: 1

      Mod parent down -1, ignorant.

      The x86_64 additions *DO* help performance in many real-world examples from MPEG encoders to cryptographic algorithms to various other register intense algorithms.

      As for your last sentence that's so wrong I don't know where to begin.

      Look into how much a stack spill costs compared to just using a register to hold a value. Then tell me x86_64 doesn't help.

      Also keep in mind not all registers are 64-bit. You can access the *EXTRA* registers as 64-bits, 32-bits, 16-bits and 8-bits if you want. ... seriously, actually benchmark code instead of spreading retarded fud.

      Tom

      --
      Someday, I'll have a real sig.
    21. Re:What? by Anonymous Coward · · Score: 0

      well, tough shit. you still see only the physical registers at any given time in a given thread. Go and compare the speed of vectorized code for 8 and 16 registers and then we'll talk.

    22. Re:What? by DrDitto · · Score: 1

      Look into how much a stack spill costs compared to just using a register to hold a value. Then tell me x86_64 doesn't help.

      Do you realize that the number of physical registers greatly exceeds the number of exposed registers? I'm not saying it does, but the micro-op decoder could even elide the stack fills/spills. OoO pipelines already do Tomusulu's algorithm, so I wouldn't be surprised if the micro-op decoder could do the same. Even if it doesn't, filling and spilling the stack will not cause many pipeline stalls because of the locality of the accesses.

      Performance is becoming dominated by the memory system. Stack accesses nearly always hit in the L1 cache.

    23. Re:What? by Anonymous Coward · · Score: 0

      Those "way more registers" are actually in use and x86 does suffer from extreme register starvation. Your whole comment is rather hard to understand. Sun Sparc offers 50% more registers and how old is that architecture 15 years? A modern risc style CPU should offer way more local data capability like Itanium with its 128 registers plus possibly on-CPU stack etc goodies.

      The way it really is - if you know what you're doing - those extra registers are a godsend and the prefixes do not matter at all.

      What does matter is that AMD broke much of the carefully crafted upwards compatibility with their implementation. It's not nice, like upper 32bits getting zeroed if lower 32 are written to. They did a bastard job but I can't really blame them as Intel's been sitting on 64bit technology for 10 years.

      The best AMD could do would be to release a firmware patch/select which would let the AMD64 be operated as full 64bit RISC processors without any x86 legacy crap whatsoever. Break it once break it good and be done with it.

      Just a few rambling thoughts, too tired to turn this into anything more coherent.

    24. Re:What? by Reapman · · Score: 1

      "I care not how much power it uses or how well it runs Word or whatever else they are doing to test these things. "

      Yawn... so basically what your saying is the only thing that matters is that it's 64bit huh? If it doubles your power bill your happy, because omfgbbq it's 64bit omgz AMD is teh ub3r. intel sux0rz. Funny, my 32bit chip does everything I want, gaming etc, but it must suck because it's not 64 bit huh. What is this, Sega vs Nintendo circa 1990?

    25. Re:What? by Anonymous Coward · · Score: 0

      The benchmarks in the article pretty much show you are wrong and that is doesn't make a big deal for most real-world applications. I can pull codes out of my ass that are amazing on the Itanic IA-64 ISA, but that doesn't mean we should all be buying Itanium machines.

    26. Re:What? by Mark+Gillespie · · Score: 1

      Given that the chip under test is a mobile part. If you want a Intel Core chip, with EMT64, wait for Conroe, it's just around the corner, and does 64bit just fine. Don't know what transistor overhead adding EMT64 would have been, but I assume some, so omitting EMT64 for a mobile chip seems a sensible option.

    27. Re:What? by Anonymous Coward · · Score: 0

      20% general speed boost serves no purpose? Possibly 50% speed boost on encoding video serves no purpouse? RTFA, it's a speed test. Any 8bit chip would probably suit you, but for us that need speed x86-64 IS better than x86-32.

    28. Re:What? by tomstdenis · · Score: 1

      Hello. Go hunt down my CV and look where I work. I know about the insides of the processor.

      And as I said unless you remove the dependency alltogether register renaming only helps serialize the pipeline. The idea is you can feed the result off the ALU bus directly into the execution engine again.

      That helps keep a low level of bubbles but doesn't help with IPC beyond 1.0

      A register-register feed is a zero cycle access. e.g.

      MOV EAX,EBX
      ADD ECX,EAX
      ADD EDX,ECX

      The result each operation will forward to the other and on the K8 core this takes 3 cycles. Without this you'd need a cycle to store back to the register file and a fetch.

      Now consider a spill

      MOV EAX,EBX
      ADD [ESP+4],EAX
      MOV EAX,[ESP+4]
      ADD [ESP+8],EAX

      This takes at a minimum 4+3*3=13 cycles provided the stack is in the L1 and is DWORD aligned. So the simple step of 3 adds can take either 3 cycles or >10 cycles if you spill. Recall every access to the L1 takes 3 cycles. That is if the DTLB has the mapping, the data is present and there are no pending writes.

      That's where having more registers helps. There are a lot of hotspots with pointers or other complicated access where having registers to cache data helps. Crypto and DSP work are two examples, there are many others.

      So where ever a statement [or group of statements] have blocks that are independent of each other you can compute them in parallel. Consider something complicated like

      p[t[3*x + y*z] + 1] = s[blah blah ...]

      Whatever, point is the address for p[] and s[] can be computed "serially" in program order but in parallel on the processor if they're not reusing the same registers.

      If they have to spill or re-use registers than the cpu can't have two copies of a given register at once.

      Tom

      --
      Someday, I'll have a real sig.
    29. Re:What? by DrDitto · · Score: 1

      Yes, register-register data dependencies can by bypassed. Yes, this can make a difference for certain kernels. But did you actually look at the benchmark results in the parent article? It simply does not make much of a difference for most applications. If it did, the RISC architectures would have buried IA-32 in the 90s. Guess what? They didn't. Much of this is due to Intel's superior manufacturing capabilities, but much of it is also because it just doesn't matter for most applications. And your example completely ignores the effects of superscalar out-of-order execution. There is plenty of work to do while stack fills/spills are hitting in the L1D cache and retiring. BTW-- I didn't find your CV, but being that I do research in architecture, I think I know something too.

    30. Re:What? by tomstdenis · · Score: 1

      Most benchmarks are not only artificial in nature but flawed in delivery.

      Some 32-bit optimized test running on a 64-bit box does not a 64-bit benchmark make.

      Games are notoriously useless as they depend more on the entire system than just the processor.

      The synthetic benchmarks are just that, etc...

      Why not do real tests like "time to zip 1GB file of text, bmp and exes" or "time to compile 1M lines of C++" or ... Things where you can actually extract useful information out of.

      Seeing that F.E.A.R. gets 1fps higher on a Core than a Turion does not tell me x86_64 is a waste. It tells me that for that game it doesn't matter.

      Believe it or not, many people buy computers for more than gaming.

      Tom

      --
      Someday, I'll have a real sig.
    31. Re:What? by DrDitto · · Score: 1

      p[t[3*x + y*z] + 1] = s[blah blah ...] Whatever, point is the address for p[] and s[] can be computed "serially" in program order but in parallel on the processor if they're not reusing the same registers.

      BTW-- they can be computed in parallel with register-renaming which is done with all OoO cores. If they use the same registers, they are _false_ dependencies.

    32. Re:What? by drinkypoo · · Score: 1

      Actually, it quadruples the number of general purpose registers. There are only four true GPRs in the x86 processor family, [E]AX, [E]BX, [E]CX, and E[DX]. The other so-called GPRs are actually index registers, comprised of index and offset registers, and many instructions require that you use them. Also, many instructions require that you place the operands in specific registers, and take the result in others, which means that in some ways, none of x86's registers are general-purpose. I wouldn't go that far, but you certainly can't call ES, DI etc. general-purpose.

      On large data sets, and when memory is allocated such that it can be accessed conveniently, the 64 bit processor can chew through some types of data much more rapidly. However, the enhanced number of registers does not provide as much benefit as you'd think, for two reasons:

      1. Register Renaming. x86 processors since the Pentium and the Am586 have more registers than they expose, and when you perform a context switch, they can swap in the other registers, meaning they can cut the time of a context switch down a great deal.
      2. 32-bit programming. Some programs are simply designed to snarf and process 32 bits at a time, either because that's the most convenient type of data, or because the programmers assumed they'd be running on 32 bit processors, and making them be able to use less or more bits efficiently was not convenient for them. In particular one of our favorite data types, the IP address, is 32 bits long, so 64 bit processing won't speed that up without some major (and majorly odd) performance enhancemens. Meanwhile, IPv6 addresses are twice as big as a 64 bit register...
      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    33. Re:What? by HuguesT · · Score: 1

      Do your own benchmarks on your own code.

      On mine I routinely get 15% better speed on 64-bit code vs. 32-bit on the Athlon64. There is no hype as far as I'm concerned.

    34. Re:What? by HuguesT · · Score: 1

      Not on Linux, and reportedly not on OS/X either. Both have at least a respectable 64-bit backend that works.

    35. Re:What? by maraist · · Score: 1

      The best AMD could do would be to release a firmware patch/select which would let the AMD64 be operated as full 64bit RISC processors without any x86 legacy crap whatsoever. Break it once break it good and be done with it.

      It's called Itanium, and we all see how well that worked out.

      I'm not exactly sure what the advantage of using a prefixed assembly language was (given the alternate execution mode); how hard could it have been to write a multi-plexed instruction decoder? When in 64bit mode, use decoder64, when not, use decoder32. To my knowledge decoders don't take up a whole hell of a log of silicone.

      Theoretically you can reuse 95% of your existing compiler logic.. But to write 64bit assembly, you have to adjust for the 64bit pointers anyway, so that's got to be non-trivial.

      I think the real problem with rewriting the assembly is that there is too much temptation to make dramatic changes, and to write new functionality that supports the changes (again, Itanium).

      I have to assume that since they wanted IA32 to run as fast as humanly possible (and to merely SUPPORT 64bit), that a lot of the out-of-order logic and what-have-you were specificly tied to the nuances of IA32, and thus the overhead of a prefix was the nothing compared to the advantages of using 100% identical assembly-base.

      --
      -Michael
    36. Re:What? by NutscrapeSucks · · Score: 1

      I have no doubt it helps in many specific situations. However, for most non-server users, it's a non-factor.

      --
      Whenever I hear the word 'Innovation', I reach for my pistol.
    37. Re:What? by tomstdenis · · Score: 1

      Register renaming doesn't always mean there are multiple registers.

      In the case of AMD K8 only the FPU has redundant registers the ALU maintains strict serial order.

      So

      ADD EAX,EBX
      ADD ECX,EAX

      Takes two cycles on the K8 according to public documentation and patent filings.

      What essentially happens is EAX in the second case is tagged as "coming from the previous cycle" and the schedule will dispatch it to the ALU after the first cycle.

      Just a quick breakdown... x86 => macro_ops which are fed into one of three pipes. The ICU [or Reorder buffer] then lines them up 3 per line and throws them into the 8-way schedulers for each ALU pipe. The ALU schedulers actually split the macro_op into ALU and AGU micro_ops and can run any of them in any order [well so long as program order is followed].

      The registers are renamed as they enter the scheduler from their original names like eax, ebx or esp to future file names. Where a conflict exists they are marked with a pipe and distance. This tells the scheduler in which cycle and pipe the current register value is ready. In this way one ALU or AGU can feed another ALU or AGU [or even itself] as quickly as possible [e.g. 0-cycle].

      The schedulers for each pipe simply look at when and where the register will be available and delay the insertion into the ALU itself until ready.

      The FPU on the otherhand has free/retire/rename files can and can schedule two independent paths but still only one pipe for add and one for mul. Result forwarding is less important in the FPU as it has a higher latency and fewer resources to start with.

      Eitherway.

      To get the highest IPC on K8 processors you need to use different registers alltogether. Register renaming only helps the scheduler minimize bubbles.

      Intel may be different but I suspect their ALU is the same. This is the quickest way to feed results around while sacrificing some parallelizability.

      Tom

      --
      Someday, I'll have a real sig.
    38. Re:What? by the+eric+conspiracy · · Score: 1

      AMD has both Turion and Sempron 64 bit processors available for mobile platforms, but you may notice that they are very difficult to find in new laptops.

      That is crazy talk. Visit hp.com and you will see a raft of them. Fujitsu, Acer, and other major manufacturers offer Turion based laptops.

    39. Re:What? by plantman-the-womb-st · · Score: 1

      Actually, one of the ACs that replied to my original post was almost astute. I'm not saying that the 64bit is god, I'm saying they are apples and oranges, or as the AC put it, sedans and 18 wheelers. If you try driving an 18 wheeler to drop your kids at school every morning (or any other everyday type task) you will notice a loss of performance compare to a sedan preforming the same task. On the other hand, try hauling 8 tons of import goods 2000 miles 4 times in a month with the sedan and you'll see that the 18 wheeler way out prefoms performing that task.

      My confusion is in why the people testing the sedan decided to put it against the 18 wheeler. It makes no sense.

      --
      Say bad words about my book, in cold oatmeal, or I shall sue!
    40. Re:What? by DrDitto · · Score: 1

      No, but hardware register renaming compensates for false dependencies due to the lack of architectural registers. Your example is a true dependency and extra registers doesn't help here (unless I am confusing AT&T/Intel Syntax...plus I really don't know IA-32 assembly like I do SPARC and MIPS).

      Besides, I call Amdahl's Law. It just doesn't matter for most applications.

    41. Re:What? by Anonymous Coward · · Score: 0

      Actually Https sustains massive gains when run on a 64 bit processor. All that crypto is takes about 10x as long on a 32bit architecture.

    42. Re:What? by Reapman · · Score: 1

      Ahhh I see. Well I must admit I was overly harsh in my post (must remember.. drink caffine THEN read slashdot), and I see your point now more clear.

    43. Re:What? by freakmn · · Score: 1

      Ooh, I've been thinking of upgrading to one of those from my H3, but there's certain things I can't live without. Can you get one that has a cell phone cradle? What about a place for my laptop? I mean, I have to check and respond to e-mail on my 2 mile trips to the grocery store.

      --
      warning: This post is likely to contain gobs of dripping sarcasm. Consume at your own risk.
    44. Re:What? by AcidPenguin9873 · · Score: 2, Informative
      x86 processors since the Pentium and the Am586 have more registers than they expose, and when you perform a context switch, they can swap in the other registers, meaning they can cut the time of a context switch down a great deal.

      Register renaming has nothing to do with context switches. The "invisible" registers are used to remove false dependencies in the instruction stream to increase Instruction-Level Parallelsim (ILP) within a single thread. In fact, on a context switch, the architectural state exactly matches the physical state (no "invisible" registers are in use), and so the processor doesn't have to save any extra registers other than the architecturally-visible ones. The details (skip if you're not interested):

      loop:
      movl %ecx, (%ebx)
      # Do something complicated with ECX
      addl $4, %ebx
      cmpl $64, %ebx
      jl loop

      In the above assembly, the instructions are dependent upon one another: you can't execute the incl until after the movl because the incl overwrites EBX. You can't start executing the next iteration of the loop until the current iteration is finished, because the movl at the top of the loop overwrites ECX. These restrictions only arise because you are reusing the registers EBX and ECX. If you could somehow use different "copies" of these registers, you could execute multiple iterations of the loop in parallel, and execute instructions inside the loop out of order.

      Inside the processor, the instruction stream may be seen like this:

      %r0 <- (%r1)
      # Do something complicated with r0
      %r2 <- %r1 + 4
      cmpl $100, %r2
      jl loop

      %r3 <- (%r2)
      # Do something complicated with r3
      %r4 <- %r2 + 4
      cmpl $100, %r4
      jl loop

      ...

      The processor has removed all false dependencies by using its internal, non-visible registers to remap different loop's "instances" of EBX and ECX to different physical registers. This enable out-of-order execution: since the next "copy" of EBX has been renamed to be a different physical register (r2) than the original value of EBX (r1), the processor can execute the addl instruction LONG before it executes the "Do something complicated" portion of the loop.

      This then allows the processor to execute multiple iterations of the loop in parallel (with branch speculation and recovery) by performing the addl instruction very soon after the loop begins, which will allow further iterations of the loop to run by calculating the "next" value of EBX. The processor has effectively performed loop unrolling in hardware.

    45. Re:What? by AcidPenguin9873 · · Score: 1
      And spill code is at least twice as slow as using the extra registers for locals. Go read up on compilers and register allocation.

      That said, other factors probably offset the additional registers (more bytes per instruction => less effective use of icache). Having more registers probably turns out to be a wash, or at best a very modest performance gain.

    46. Re:What? by Anonymous Coward · · Score: 0
      Err...that first line of assembly should be:

      movl (%ebx), %ecx

    47. Re:What? by Anonymous Coward · · Score: 0

      You'll have to recompile your code with a compiler producing optimized 64-bit code specially tailored for the cache sizes of the AMD to get the most out of it ...

      Most programs are just compiled using "generic" settings and will gain you pretty much nothing when switching from 32-bit Intel to 64-bit AMD.

      The answer is of course JavaVM, Univeral Binaries or any other JIT comiler system, which optimize code for the cpu and current run-time parameters in real-time.

    48. Re:What? by Savantissimo · · Score: 1

      Check out the article. They did a wide variety of tests, both 32 and 64 bit, multithreaded different ways as well as single threaded, on a variety of applications compiled on both MS and Intel compilers and noted when the results seemed to favor the Duo a bit too much, for example when some 64 bit versions of software seemed slow. No set of benchmarks is going to be perfect, but at the end of the day, people actually want to use the chip and find out about how fast it will run their applications rather than argue about theoretical points of instruction scheduling and numbers of registers.

      The Core Duo is a laptop chip. If you need a proper server or all-out FP number-cruncher it isn't your chip - but it really did amazingly well in these tests, not perceptably slower than the very fastest chips in many practical cases, and was reasonably good at everything. Once you factor in power per $ or per watt, the core duo has to be considered the best in the x86 domain for just about everything they tested. Even though processor power differences are really irrelevant for all but a few tasks these days, and even for those, a few % either way is usually imperceptable, I thought the article was interesting and worth reading.

      --
      "Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery?" - Patrick Henry
    49. Re:What? by Savantissimo · · Score: 1

      Leaving aside the AMD part of the quesion, a mobile 64-bit uP would have been good for Apple. Apple will end up having G4, G5, 32-bit x86 and x64 versions all bundled in each application - they could have cut that down if the initial MacIntel models hadn't been 32-bit. 64-bit makes sense for people who are going to keep their computers for two or three years, too. It won't be long before >4GB is standard, even sooner for those running multiple OSes on VMs.

      --
      "Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery?" - Patrick Henry
  12. Benchmarks by SilentChris · · Score: 2, Informative

    I already posted some benchmarks of a Core Duo Mac Mini running Windows (http://slashdot.org/comments.pl?sid=182379&cid=15 077120) and to be honest I was fairly impressed. The gaming benchmark was obviously miserable, the "general purpose" benchmark (zipping files, encoding audio/video, etcdid very well. The Apple zealots may say "it's because it's a Mac", but really the hardware is almost identical to your average Intel laptop. The only major difference is the Core Duo, which not many laptops have (although that's increasing all the time), and that's what I'm putting my money on. Can't wait to see a benchmark with this thing in a gaming rig.

    1. Re:Benchmarks by lederhosen · · Score: 1

      Have you _ever_ seen an article at slashdot that was negative about Apple --- seriously.

      Of course the core duo is the fastest and greatest, as it is now used my Apple.

      How many laptops a year do editors at slashdot get from apple?

      I use an Intel processor myself, so it is not that I hate what Intel does. But if you look at the core duo,
      from a technical point of view, it is a double pentium m. Nothing more.

      The most exiting new processor from intel in my life as a computer user, must clearly be the pentium.
      It was _way_ better than the 486.

    2. Re:Benchmarks by Anonymous Coward · · Score: 0

      my acer 8200 runs oblivion verry smoothly
      there you have a benshmark

    3. Re:Benchmarks by Anonymous Coward · · Score: 0

      from a technical point of view, it is a double pentium m. Nothing more.

      Well, the cache is a nicer color than your old model, too. I bet you're just jealous of the shiny new mauve L2 - mauve has the most RAM, you know!

  13. No way! by thetaco82 · · Score: 2, Funny

    So, Intel's new 65nm process is better than their older processes? Weird...

  14. 2.0 iMac versus 2.8 P4 by boxlight · · Score: 1, Interesting

    I just got a new 2.0 Core Duo iMac and it feels a lot more powerful than my old P4 2.8 GHz Sony PC.

    I know it's subjective, and I'm now running OS X instead of Windows, but still -- I definately *feels* more powerful.

    boxlight

    1. Re:2.0 iMac versus 2.8 P4 by btmark · · Score: 1

      If only I wasn't an AMD snob.. (Or too poor to buy one of these sum'bitches)

    2. Re:2.0 iMac versus 2.8 P4 by Phroggy · · Score: 1

      I just got a new 2.0 Core Duo iMac and it feels a lot more powerful than my old P4 2.8 GHz Sony PC.

      How much RAM in each system? What kind of video card? Shared AGP or dedicated video memory?

      --
      $x='S24;r)>63/* h@<5+oZ)32"5cz';$me='phroggy'x$];
      $x=~y+ -xz+\0-Tx+;print$_^chop$me for split'',$x;
    3. Re:2.0 iMac versus 2.8 P4 by boxlight · · Score: 1

      I just got a new 2.0 Core Duo iMac and it feels a lot more powerful than my old P4 2.8 GHz Sony PC.

      How much RAM in each system? What kind of video card? Shared AGP or dedicated video memory?

      Sony PC
      CPU: P4 2.4 GHz
      RAM: 1.5 Gig DDR 333Mhz
      VIDEO: AGP ATI 9600XT 128meg


      iMac
      CPU: Core Duo 2.0 GHz
      RAM: 1.0 Gig
      VIDEO: ATI 1600


      I was honestly hoping that my new iMac would feel as powerful as my Sony (which was a pretty nice PC) -- it definitely exceeded my expectations and "feels" a lot better.

      Hope this helps,

      boxlight

    4. Re:2.0 iMac versus 2.8 P4 by Ginnungagap42 · · Score: 1

      What OS were you running on the Sony? If it was MS Windows, that would explain a lot of the speed difference. I run Windows on a 2.0 GHz Pentium M (Dell D800) and OS X on a 1.5 GHz G4 (PowerBook). The PowerBook seems like it runs circles around the Dell. I'm fairly convinced that this is mostly due to OS Bloat on Windows part. Apple has done a brilliant job on the UI, not so much in terms of look (which is gorgeous), but rather in speeding up response to the user as much as they can. When I upgraded from 10.2 to 10.3, the response time actually got faster.

      I'm glad you're digging your Mac. I switched for personal use a couple of years ago and haven't looked back. Very nice machines. One of these days I'm going to break down and try the Intel-based machines.

      Cheers!

    5. Re:2.0 iMac versus 2.8 P4 by Anonymous Coward · · Score: 0

      I have a G4 1.4ghz mac mini that is considerably faster than my old p4 was, when it comes to using photoshop anyway.

      not just "feeling" faster, but actually timed a lot of my workflow, and it was a LOT faster than my 2.8 p4.

      i'm sure the new core duo will blow the doors off the old p4's :)

    6. Re:2.0 iMac versus 2.8 P4 by kestasjk · · Score: 1

      .. and a zealot is born.

      --
      // MD_Update(&m,buf,j);
  15. What would the results show by Anonymous Coward · · Score: 0

    if the tests were run on Linux?

  16. Take note! Many of these features inside AMD too. by Inoshiro · · Score: 4, Insightful

    "But Yonah also supports the group of 13 new instructions known as SSE3, handles some SSE2 instructing like Shuffle and Unpack up to 30% faster, and is capable of using its instruction-grouping abilities (known as micro-ops fusion) on some SSE instructions, improving overall throughput."

    SSE3 has some very nice hardware thread synchronization instructions. These are important (and AMD has them now). As for the instruction grouping, that sounds rather suspiciously like the double dispatch operations that were added to Opteron:
    "Appendix C of Opteron's Optimization Guide specifies to which class each and every instruction belongs. Most 128 bit SSE and SSE2 instructions are implemented as double dispatch instructions. Only those that can not be split into two independent 64 bit operations are handled as Vector Path (Micro Code) instructions. Those SSE2 instructions that operate on only one half of a 128 bit register are implemented as a single (Direct Path) instruction."

    Assuming AMD can tune Turion64s to be more power friendly, they'll be able to best Intel's fancy new Core Duo. If they can't, then Intel may be the best game in town for the first time in a decade (assuming they price competitively).

    --
    --
    Internet Explorer (n): Another bug -- that is, a feature that can't be turned off -- in Windows.
  17. Maybe per watt performance is the best but... by danpsmith · · Score: 4, Interesting

    Looks like AMD still has them beat. From my take on this, on pure performance, the 3800+ X2 is going toe-to-toe and the 4800+ X2 is beating it every single time. So again, not that impressive. Now the per watt performance is important in some applications, so I can see why it would be a better, say, mobile platform than the AMD chips. But let's not pretend that Intel is winning the benchmarks with this quite yet.

    --
    Judges and senates have been bought for gold; Esteem and love were never to be sold.
    1. Re:Maybe per watt performance is the best but... by Pegasus · · Score: 1

      Also, X2 3800+ runs at 2.0GHz. Giving about the same performance while sucking just a few more watts... not bad, I say.

    2. Re:Maybe per watt performance is the best but... by Nexum · · Score: 1

      Bear in mind that Yonah is a chip aimed at portables (and other low-power requirements e.g. Mac Mini), and represents an early re-jigging of the Pentium-M architecture. Merom/Conroe will be improved even further, and it appears that the things really will be very good performers.

      Of course, there's a few months until these things are on the shelves, but with the roadmaps as they stand, and with these early Conroe benchmarks, you'd be hard pressed to convince anyone that Intel aren't going to have a very compelling piece of hardware.

      --

      This sig has been deprecated.
    3. Re:Maybe per watt performance is the best but... by drinkypoo · · Score: 1

      Yes, let us bear in mind that Yonah is designed for portables, and STILL doesn't have amazingly better performance-per-watt numbers than the desktop version of the AMD processor. They're better, but not enough to justify this wave of fanboyism.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    4. Re:Maybe per watt performance is the best but... by Sebastopol · · Score: 3, Informative

      But let's not pretend that Intel is winning the benchmarks with this quite yet.

      'Yet' is now.

      Merom/Conroe defeats AMD-AM2 hands down, and AMD has nothin' on the roadmap for the next two years, because AM2 slipped a full 12 months.

      Go surf around Anandtech.com

      AMD is in deep doo doo.

      --
      https://www.accountkiller.com/removal-requested
    5. Re:Maybe per watt performance is the best but... by the+eric+conspiracy · · Score: 1

      'Yet' is now.

      Not hardly. None of Merom/Conroe or AM2 can be purchased by users today, and Merom is late 2006 at the earliest.

      This is very relevant to me because my 4 year old laptop died Sunday. I now have a choice between Core Duo or Turion. Core Duo is the better technology if I was happy with 32 bits, but what I really want is a 64 bit dual core laptop. My best hope is gutting it out until May 9 when AMD introduces the Turion X2 on AM2 or S1. For a dual core 64 bit laptop from Intel the wait would be too long.

      http://www.channelregister.co.uk/2006/02/09/intel_ mobile_roadmap_feb_06/

    6. Re:Maybe per watt performance is the best but... by Sebastopol · · Score: 1

      Wow, dude. Just let go. AMD isn't your girlfriend. It is a company.

      --
      https://www.accountkiller.com/removal-requested
    7. Re:Maybe per watt performance is the best but... by the+eric+conspiracy · · Score: 1

      So what would you do if you wanted a dual core 64 bit laptop?

    8. Re:Maybe per watt performance is the best but... by Panascooter · · Score: 1

      While that may be true, let's not forget that the CoreDuo is still intended as a mobile processor. The fact that it is even competitive with the X2s is impressive. The real test will come when the Conroe comes out. Early reviews (granted, on intel supplied hardware) show Conroes kicking the crap out of even the fastest AMD processors (overclocked even) in everything from gaming to media encoding and synthetic benchmarks. They are cooler and more efficient to boot. Unless AMD pulls some magic out of its hat, my next rig will be Intel based. See here: http://www.pcper.com/article.php?aid=219&type=expe rt&pid=1 here: http://techreport.com/etc/2006q1/conroe/index.x?pg =1 here: http://www.anandtech.com/tradeshows/showdoc.aspx?i =2713 and here: http://www.hexus.net/content/item.php?item=4843

    9. Re:Maybe per watt performance is the best but... by Senjutsu · · Score: 2, Interesting

      So what would you do if you wanted a dual core 64 bit laptop?

      Realize that there isn't a laptop on the planet that can make use of a 64 bit address space, and come to my senses?

    10. Re:Maybe per watt performance is the best but... by MojoStan · · Score: 1
      This is very relevant to me because my 4 year old laptop died Sunday. I now have a choice between Core Duo or Turion... what I really want is a 64 bit dual core laptop.
      What an unfortunate time to have your laptop die! You know what you want (dual-core 64-bit), but it's not quite available yet. Performance previews aren't quite available either. Ugh.
      None of Merom/Conroe or AM2 can be purchased by users today, and Merom is late 2006 at the earliest...

      My best hope is gutting it out until May 9 when AMD introduces the Turion X2 on AM2 or S1. For a dual core 64 bit laptop from Intel the wait would be too long.

      http://www.channelregister.co.uk/2006/02/09/intel_ mobile_roadmap_feb_06/

      Yes, Merom has apparently been delayed until Q4. I have more bad news, though. According to a March 29 DailyTech article, dual-core Turion 64 may be delayed until June:
      AMD's Turion 64 Roadmap

      Before you completely eliminate Merom, note that Merom is pin-compatible with Yonah and will work with Intel's current 945PM/GM chipsets. Therefore, a Merom-upgradable notebook is available today, dual-core Turion 64 chipset and CPU is probably coming in June, and the Merom CPU is coming in October at the very earliest.

      If you are considering the upgrade-to-Merom option, a cheap interim solution will soon be available. Celeron M processors based on the Core Solo core are now selling in Japan:

      'Yonah' Celeron M 420, 430 ship in Japan
      --
      TO START
      PRESS ANY KEY

      Where's the 'ANY' key? I see Esk, Kitarl, and Pig-Up...

    11. Re:Maybe per watt performance is the best but... by the+eric+conspiracy · · Score: 1

      Realize that there isn't a laptop on the planet that can make use of a 64 bit address space, and come to my senses?

      It is a pretty common misconception that 64 bit OS's are only useful if you want more than 4GB of physical RAM. The reality is that ability to address more than 4 GB of virtual memory is very helpful if you have more than 2 GB of RAM.

      With a 64 bit CPU you can locate memory mapped files and I/O devices outside a 4GB pysical RAM space making it possible to fully utilize 4GB of physical RAM - something not possible with a 32 bit CPU. It is a big advantage for 64 bit CPUs even if you only intend to use 4 GB of RAM.

      With 2GB SODIMMs available and dropping in price it is something to consider when you are thinking about buying a laptop.

    12. Re:Maybe per watt performance is the best but... by Senjutsu · · Score: 1

      To be honest, I haven't seen any laptops that will support more than even 2 gigs of RAM. Yeah, most have two SO-DIMM slots, and 2 Gig SO-DIMMs are getting cheaper, but from what I've seen most on-board memory controllers seem to max out at 2 Gigs. You've got a good point, though, and maybe there are a few laptop mobos out there that can take more than 2 Gigs, I just haven't seen any.

    13. Re:Maybe per watt performance is the best but... by toddestan · · Score: 1

      So what would you do if you wanted a dual core 64 bit laptop?

      You can buy a gamer laptop today that has an AMD Athlon 64 X2 in it. Sure, it'll be huge and have a battery life measured in minutes, but it is a dual core 64bit laptop.

    14. Re:Maybe per watt performance is the best but... by jelle · · Score: 1

      "Realize that there isn't a laptop on the planet that can make use of a 64 bit address space, and come to my senses?"

      You are so 'misinformed'...

      X86-64 doubles the number of registers in the chip, resulting in quite a significant speed boost due to the significantly decreased need to access memory.

      --
      --- Hindsight is 20/20, but walking backwards is not the answer.
    15. Re:Maybe per watt performance is the best but... by the+eric+conspiracy · · Score: 1

      I know that at least the Intel 945M chipset supports 4GB of address space. While I haven't found data on what the AMD Turion X2 / S1 is going to support I would expect to see 4GB for that too.

      The time of 4GB laptops is coming.

    16. Re:Maybe per watt performance is the best but... by Sebastopol · · Score: 1

      The MRM link is broken, do you have another link? I can't seem to confirm this.

      --
      https://www.accountkiller.com/removal-requested
    17. Re:Maybe per watt performance is the best but... by Sebastopol · · Score: 1

      Ah...

      http://www.theinquirer.net/?article=29605

      Looks like the mobile version will slip, but the desktop (Conroe) is still on target.

      --
      https://www.accountkiller.com/removal-requested
  18. Bound to happen by Cthefuture · · Score: 1

    I think we could all see this coming. The Prescott Pentium 4's were never that great compared to the competition. They sucked tons of power, were hotter than hell, and the performance really wasn't all that great compared to the competition.

    The Pentium M on the other hand had a much better core design. It just lacked the connectivity of the Pentium 4 because it used socket 478 and similar older technologies. These new Core Duo's are the logical extension to the already good Pentium M line. I wish Intel would just kill all those Prescott processors already.

    I have been waiting many years to dump my Opteron machine for an Intel based version. I love the Opteron processors but you just can't get a decent motherboard for them. Hopefully in the near future I can switch to one of these newer Intel procs.

    --
    The ratio of people to cake is too big
    1. Re:Bound to happen by Krischi · · Score: 1

      What is so bad about the Tyan motherboards, e.g. the Thunder K8W? Rock solid, and quite fast.

    2. Re:Bound to happen by Anonymous Coward · · Score: 0

      You want a decent Intel motherboard like the one used by Tech Report?

      The excellent high-quality motherboard that required cold booting because it would have 50% of the time in a warm reboot?

      The one that has zero enthusiast options, thus making it pointless for the vast majority of people that would spend the money for something like this, and possibly would have put up with the above issue?

      There's nothing great about Intel chipsets. People say they're good because people are repeating what other people have said for years, back from the days when the competition was VIA. The only thing I'd say about them is that they're as crap as all the other chipsets, i.e., the other chipsets suck as well.

    3. Re:Bound to happen by Cthefuture · · Score: 1

      Yeah but you have to add an expensive drive controller to get decent disk performance. Those SiI3114 chipsets suck.

      The Intel disk chipsets on the other hand are extremely good as far as built-in chipsets go. The only competitor would be one of the nVidia chipset boards but all of those have caused me nothing but trouble.

      --
      The ratio of people to cake is too big
    4. Re:Bound to happen by Forbman · · Score: 1

      For what, SCSI? How much more is an Adaptec or Promise SATA controller card? Hmm...

      Hint: Stop buying your stuff at Best Buy or Circuit City.

      The chips you're talking about are the Northbridge/Southbridge chips. They manage I/O for devices and memory and CPU, but they're not the actual disk drive controllers.

      If you want disk performance, you should be putting in SCSI anyways, and yes, that costs $$$ (But I got an Adaptec 2960 SCSI-II card on eBay a few years ago for only about $70...).

      for any SCSI haters, you do realize that NT/2000/XP hangs its IDE drivers off of the SCSI subsystem, right?

    5. Re:Bound to happen by Anonymous Coward · · Score: 0

      buy a Mac. It can also run Windows, you know.

  19. The 8080? No way! The Intel 4004 was smokin' hot! by dpbsmith · · Score: 5, Funny

    At the time it was introduced, there was no other microprocessor that came close to matching it.

    It was indisputably not only the best microprocessor Intel had produced to date, but the best microprocessor on the market.

    Simply no contest. No argument. It superlative in every way, the fastest, the cheapest, the lowest in power consumption, the most advanced in architecture, the widest path. It was king of the hill, the top of the tree, the Cadillac of microprocessors, the ne plus ultra, it bestrode the world of microprocessors like a colossus.

    The world will never again see the day when one manufacturer so dominated the microprocessor market that a single product had a 100.0% market share.

  20. wow by Anonymous Coward · · Score: 0

    That sure is a nice 8-bit CPU you are running there. It is four times as fast as a 32-bit system cause you get to use 4 registers at the same time to represent 32 bits.

  21. Re:Load of Crap by NCG_Mike · · Score: 4, Informative

    Our QA department is testing my universal application right now (AppKit based). They've recorded a 20 to 30 percent increase in performance of a 1GB MacBook Pro over a 3GB 2Ghz Dual G5 doing a particular operation (mostly mathematics based done in cross-platform C++). It's single threaded, I might add, since OpenMP isn't here yet. The *ONLY* difference in the XCode settings between the two architectures that I made was to enable SSE3 for the Intel build. I can't believe that it's that alone, of course, and suspect it's just better code gen for the Intel architecture coming out of GCC.

  22. Mhz War AMD vs Intel by vchoy · · Score: 2, Insightful

    From the article: ...The T2600 can't quite take the overall performance crown from the likes of the Athlon 64 FX-60 or the X2 4800+, but jeez, it's startlingly close....

    Given the T2600 runs at 2.16ghz

    Compare this to

    AMD 4800+ 2.4ghz

    it really does seem the 'Mhz = performance' is well and truely over...and for the first time Intel seems to be saying to AMD "We too can play your Mhz mean 'nuffin game'"

    Again...the test results maybe affected by the chipsets used for the different processor architectures, which in turn affected the the types of memory used (DDR2/DDR) etc etc...

  23. Re:Load of Crap by Anonymous Coward · · Score: 0

    So far the only way these slow Duo chips are winning benchmarks are:

    1) The usual bogus Intel SPEC compiler marketing games

    2) Comparing Duos to single core chips

    3) Outright lies on Apple's part

    What is most pathetic about the Duo Macs are they are barely outperforming OLD G4 systems, have worse battery life, and are almost too hot to touch in the MacBook Pro systems.

    Dual and Quad 970s and AMD systems utterly destroy Duo based systems in real world tests.

  24. Re:IF I could... by dago · · Score: 1

    and if only I was the owner of a Sun T1 ...

    --
    #include "coucou.h"
  25. Re:Load of Crap by Anonymous Coward · · Score: 0

    RTFM. It whomps the tar out of a A64 X2 3800. I'm an AMD fan having owned nothing but AMD from as far back as the K6-2 but this Core Duo will definitely be the next CPU I purchase. I'm just glad that AMD was able to push Intel to actually develop a decent CPU for the firat time in recent memory and I hope that AMD is able to keep putting pressure on them. If the battle between Intel and AMD stays close, then consumers win.

  26. Tech Report's self-destructive behavior by Futurepower(R) · · Score: 0, Offtopic

    That Tech Report article is so infested with Flash ads that it discourages me from reading it, or even taking Tech Report seriously.

    It seems to me that a company has to be very, very stupid to believe that trying to force people to read ads is productive.

    I was trying to do without the FlashBlock extension because Firefox developers tend to blame the instability and CPU hogging of Firefox on extensions. However, I've installed it now.

    --
    Before, Saddam got Iraq oil profits & paid part to kill Iraqis. Now a few Americans share Iraq oil profits, & U.S. citizens pay to kill Iraqis. Improvement?

    1. Re:Tech Report's self-destructive behavior by Anonymous Coward · · Score: 0

      Moreso than Flash itself?!

    2. Re:Tech Report's self-destructive behavior by Anonymous Coward · · Score: 0

      --
      Before, Saddam got Iraq oil profits & paid part to kill Iraqis. Now a few Americans share Iraq oil profits, & U.S. citizens pay to kill Iraqis. Improvement?

      Yes! Now we're killing the right Iraqis!

  27. Practical experiance by weiserfireman · · Score: 3, Interesting

    Just this week, I received a brand new HP nx9420 laptop with a 1.83Ghz Duo processor. I use this laptop for 3D Solid CAD/CAM applications. For my application, it is definately faster. The CAM rendering is faster, the part rotation is smoother. Overall very efficient. I have done some stress testing by doing some long database queries at the same time I am rendering a part. My old computers would have joked. There is a noticable hit on rendering performance, but it is still able to complete both tasks in a reasonable manner. We have the same CAD/CAM software on a 1.6Ghz PentiumM Laptop and two 2.8GHz Pentium-4 desktop machines. All the machines have 1024MB of RAM, and the two Desktops have 256MB video cards. I have not noticed that heat issues that other folks have mentioned, but I don't hold it in my lap either. So far I am very impressed.

    1. Re:Practical experiance by debiansid · · Score: 1

      My old computers would have joked

      *sigh* My old computer never does... probably cos it's running Linux ;-)

    2. Re:Practical experiance by weiserfireman · · Score: 1

      heh, must hit preview more often

  28. Link to mentioned article by DeadCatX2 · · Score: 1
    Here's the link to the article the parent mentioned.

    http://arstechnica.com/articles/paedia/cpu/core.ar s

    This past IDF saw the unveiling of some significant details about this new microarchitecture, which was formerly called "Merom" but now goes by the official name of "Core."

    Note the difference in code names. Processors based off the Core microarchitecture were codenamed Merom. However, processors based off of dual-core Pentium M's were codenamed Yonah.
    --
    :(){ :|:& };:
  29. Re:Load of Crap by nsayer · · Score: 3, Informative
    It is not faster than the G5 period!

    It sure the hell is. I have a 2.0x2 G5 desktop machine and one of the new 1.66 GHz Core Duo Mac Minis. Running Handbrake, the mini is easily twice as fast.

  30. Battery life in the MacBooks? by delire · · Score: 2, Interesting
    Not only is the Core Duo's performance per watt better than the rest [...]
    Why then is the battery life in the MacBooks so miserly?
    1. Re:Battery life in the MacBooks? by Anonymous Coward · · Score: 0

      English Motherfarker - Do you speak it?

      Miserly indeed.

    2. Re:Battery life in the MacBooks? by jdbartlett · · Score: 1
    3. Re:Battery life in the MacBooks? by douceur · · Score: 1

      I've had a 2.0Ghz MacBook Pro for about a month now and consistently get 3.5 hours on it. It really doesn't seem that bad to me.

    4. Re:Battery life in the MacBooks? by delire · · Score: 1

      I have 2 Asus Pentium M's and one has 3.8h and the other 4.5h after a year. From what I've read about the Dual Core I imagined far better performance than a more power hungry predecessor. Asustek make the MacBook for Apple. I guess we'll have a better comparison when/if Asus come out with a Dual Core laptop under their own brand.

    5. Re:Battery life in the MacBooks? by node+3 · · Score: 1
      Not only is the Core Duo's performance per watt better than the rest [...]

      Why then is the battery life in the MacBooks so miserly?

      Your question doesn't logically follow. I've highlighted the important part.

      If you're comparing it to the 15" PowerBook, the MacBook Pro has a brighter screen, is thinner (which might have resulted in a smaller battery, although I'm not certain), is around 4x faster (which is already faster, at the beginning of its roadmap, than the G4 is, which is currently at the end of (in some ways, beyond) its roadmap as a desktop cpu).
    6. Re:Battery life in the MacBooks? by Anonymous+Freak · · Score: 1
      Why then is the battery life in the MacBooks so miserly?


      First, I think you mean miserable, not miserly.

      Second, if you believe Apple's intro, Core Duo is 4-5 times faster than G4. Yet if you pay attention to their 'performance per watt' graph, you see that Core Duo is only 4 times better. That means that at equal power consumption, Core Duo should be 4 times faster than G4 (3.88x, to be precise to Apple's numbers.) Yet Apple says it's 4-5x more performance. That means that you are, indeed, using more power than G4, you're just getting significantly more performance for it. Comparing again the chart, G5 would use the same power for WORSE performance.

      Not to mention the physically larger, and brighter, screen.

      But, to be fair, we do also have to take into account the MacBook Pro's 60 Wh battery compared to the 15" PowerBook G4's 50 Wh battery. That's 20% more juice, for 3-28% more 'power' (4/3.88 to 5/3.88) So, even at the high end, you should only get 6% worse battery life, right? Well, again, that doesn't take the bigger/brighter screen into account.

      But, just to let you know, I can get a full 5 hours of battery life out of my MacBook Pro, just as I could with my 12" PowerBook G4. Don't knock battery life until you try it. (And to be fair, compare the same settings on both computers. Don't compare a 15" PowerBook G4 on max battery saving, dimmest display, wireless off to a MacBook Pro on max power, brightest display, wireless on.

      --
      Another non-functioning site was "uncertainty.microsoft.com."
      The purpose of that site was not known.
    7. Re:Battery life in the MacBooks? by delire · · Score: 1
      First, I think you mean miserable, not miserly.
      No, I meant miserly:

      From WordNet (r) 2.0 [wn]:

      miserly
      adj : used of persons or behavior; characterized by or indicative of lack of generosity; "a mean person"; "he left a miserly tip" [syn: {mean}, {mingy}, {tight}


      I think you'll find that etymologically speaking, 'miserable' in fact derives from the old word 'miserly' by way of 'miser', a wretched and selfish person.

      The rest of your reply was informative, thankyou.
    8. Re:Battery life in the MacBooks? by Anonymous+Freak · · Score: 1

      Sorry, I took miserly in the context of 'stingy', 'tight', or 'frugal', where 'frugal' usually means 'uses less'. For example, I have seen the Toyota Prius described as 'miserly with gas'. Meaning it uses little gas. So in that context, I took it to mean that the MacBook Pro has a LONG battery life, because it is stingy with it's use of electricity.

      And, oddly, I hadn't even considered that miserly and miserable have the same word root! (But now that you mention it, it does make perfect sense.)

      --
      Another non-functioning site was "uncertainty.microsoft.com."
      The purpose of that site was not known.
  31. Re:The 8080? No way! The Intel 4004 was smokin' ho by somersault · · Score: 1

    There are likely lots of niche markets where one microprocessor has 100% market, share, it's just that the home/desktop PC market isnt so much of a niche anymore.. and even so, was it really 100%? I just can't help disagreeing with gross generalisation, sorry :p

    --
    which is totally what she said
  32. What is AMD going to do? by mcbridematt · · Score: 2, Interesting

    I think its extreme pricewhore time for AMD, apart from a new Socket with DDR2 - which solves a problem which has never really existed at AMD* (I still enjoy my Opterons NUMA as much as the next person though :) ), although DDR2 still brings some benefits none the less.

    * Apart from the Athlon MP, whose usefullness apart from a low low cost SMP server platform disappeared when stuff started to demand more bandwidth. A Uniprocessor Duron on an nForce2 owns it on anything where AGP and memory bandwidth comes into play!

  33. Hot vs. OTHER Intel chips Holy Toasters Batma by CFD339 · · Score: 1

    Its hard to believe anything outside the orbit of Mercury could run hot when comparied to Intel's other products. WTF? Does this thing actually brand "Intel Inside" directly onto your thighs if you actually hold it on your lap? Are all laptop cases now going to be made out of left over tiles from the Space Shuttle program? Will I need to wear my fire department issued gnomex bunker pants to use this thing? Will they be selling carbon fiber tablecloths as accessories? Will I need to carry a 5 gallon water pack on my back and connect it to cooling ports on the laptop if I want to run a game?

    I'd already switched from Intel to AMD based largely on heat and power issues -- this won't help Intel's cause at all.

    I can't imagine anything running so hot they'll need a magnetic bottle instead of a processor slot to hold the chip is going to be low-power consuming.

    --
    The problem with quotes on the internet, is that nobody bothers to check their veracity. -- Abraham Lincoln
  34. SSE by DeadCatX2 · · Score: 1

    Not only does SSE3 have those hardware thread sync instructions (which I thought were mainly for HyperThreading) but the other math instructions are supposed to be helpful for complex numbers.

    SSE3 isn't exactly new, either...it's been around since Prescott (about two years as of now).

    I recall that Intel's internal data paths were 64-bits wide, which meant SSE's 128 bit operations were actually hacks. I'm not sure if AMD had a similar hack, or if they included real 128-bit data paths. I know Merom/Core/NGMA is supposed to have true 128-bit data paths, so SSE will be even better.

    --
    :(){ :|:& };:
  35. that may be... by Sfing_ter · · Score: 0

    But dollars for power still goes to amd.gimme 64bit x2.It's a feel good article for the inTEL fan boys.

    --
    A computer once beat me at chess, but it was no match for me at kick boxing. Emo Philips
  36. Re:The 8080? No way! The Intel 4004 was smokin' ho by Anonymous Coward · · Score: 2, Funny

    Son, I say, son, that's a joke, son, when it was the first microprocessor on the market, with no competitors. By definition, it would be the fastest, cheapest, coolest, et cetera, as there is nothing else for means of comparison.

    Goddamn, are all the UIDs over 500000 stupid 13-year-old kids who don't understand English?

  37. The other advantage of 64 bit by petermgreen · · Score: 1

    is it allows large files to be mmaped.

    mmaping is often both simpler and lower overhead than reading from the file into a buffer only to pass the data straight back to the OS to send down a socket or whatever.

    however on a 32 bit architecture you can't mmap anything above a few gigabytes and thats assuming your only handling the one large file in your process at a time.

    --
    note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
  38. Re:Load of Crap by wvitXpert · · Score: 2, Interesting

    I wish there was a mod option for 'Blatantly Incorrect'.

  39. Re:The 8080? No way! The Intel 4004 was smokin' ho by somersault · · Score: 1

    No, I'm a 22 year old native english speaker (well, Scottish), but when I only started using PCs about 7 years ago, before that I thought that they were trash (well, mostly I still do :p ), since I was brought up on Macs and Commodores/Amigas. x86 is slowly improving though.

    --
    which is totally what she said
  40. Re:IF I could... by twiddlingbits · · Score: 1

    Sun has a 60 day try and buy on T1 systems (T1000 & T2000), go check it out at sun.com. Late last year they were running promotions where they shipped you a T2000 for doing benchmarks and blogging about it. Some of the best bloggers are going to get to keep the systems.

  41. Re:Yes, it was really 100% by dpbsmith · · Score: 1

    It was 100%.

    It was 100.0%.

    It was 100.00000000000%.

    Everything I stated was indisputable objective fact, not opinion.

  42. Re:Hot vs. OTHER Intel chips Holy Toasters Batma by jsoderba · · Score: 1

    He was comparing the Core Duo to the ULV Pentium M in the Vaio. The Core Duo is still cooler than any Pentium 4 processor.

  43. Re:The 8080? No way! The Intel 4004 was smokin' ho by the_real_bto · · Score: 1
  44. IHBT by NutscrapeSucks · · Score: 1

    Late Model PowerBook G4 battery life was not all that great -- similar Pentium M laptops were better.

    Intel is massively better than PPC for Integer ("General Purpose") tasks, you're probably right about FP and "media" (Altivec). The problem is that Apple primarily sells consumer computers, and you can't move those just on media performance. Especially when the competition is "fast enough" to play HD H.264 etc, there's little need for specialized chips like Altivec anymore.

    --
    Whenever I hear the word 'Innovation', I reach for my pistol.
  45. Re:Load of Crap by Ford+Prefect · · Score: 1

    I did a comparison with my desktop PC (an AMD Athlon 64, 3200+ running at 2GHz, 1GB of speedy memory) versus my MacBook Pro (Intel Core Duo at 1.83GHz, 1GB memory) with VRAD on the second MINERVA map, with the Source SDK running on Windows XP Pro.

    VRAD definitely takes full advantage of the dual-core nature of the Intel processor - typical compile times on the desktop PC were around 50-60 minutes, while on the laptop they were just over 30 minutes. It's a fairly artificial test, admittedly (although I'm really happy with the increased speed) - but it certainly shows it's a rather fast processor at certain floating-point-intensive tasks, anyhow.

    --
    Tedious Bloggy Stuff - hooray?
  46. Keep in mind that by sgent · · Score: 4, Interesting

    Intel's lead is mostly a manufactoring one -- 65nm process. AMD still uses 90nm. Not to discount Intel's advantage, but AMD doesn't need a new core design to continue their dominance -- merely a new manufactoring facility (which is hard, but not as hard as the design).

    1. Re:Keep in mind that by Asic+Eng · · Score: 2, Insightful

      Are you sure about that? I would think it's just the opposite. This article gives the costs of the AMD 65nm facility in Dresden as $2.4 billion over 4 years. I'd be surprised if the digital design expenditure would look significant in comparison. That said, it looks like the fab should come online this year, so Intel won't have that advantage for long. If they were just starting to develop a 65nm facility now, I'd be very worried for them, though.

    2. Re:Keep in mind that by ciroknight · · Score: 2, Informative

      The problem is, Intel is way ahead on their 45nm manufacturing process, which could virtually negate AMD's 65nm step. (Intel says they're going to be ready in 2007, which is when everyone expects the new AMD 65nm fab to come online).

      If Intel could get to 45nm before AMD even gets to 65nm, you could kiss any performance gain that 65nm would lend AMD totally goodbye. (There's no telling how likely it is that this could happen, but seeing as both Intel and AMD are putting a great deal of their resources into it, it's anyones guess).

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    3. Re:Keep in mind that by john_uy · · Score: 1

      but intel has not yet built in a memory controller. with the higher latency, it is able to get at par with amd processors. i would expect that speed will improve significantly if they would integrate it to their processor.

      also, the new processors coming later this year i believe will have more performance gains and lower heat.

      i'm just saying that intel still some bullets in spare to drive performance of the cpu.

      and my last note, amd still doesn't make their own high end chipset and motherboard. you may have a good processor but the 3rd party motherboard and chipset sucks compared to the products intel manufactures. if only they can create one, probably i can see amd as a stable platform (well based on my friends' experiences with amd systems, their computers crash often compared to the intel boards.)

      --
      Live your life each day as if it was your last.
  47. Re:The 8080? No way! The Intel 4004 was smokin' ho by Mordaximus · · Score: 1

    It was indisputably not only the best microprocessor Intel had produced to date, but the best microprocessor on the market.... The world will never again see the day when one manufacturer so dominated the microprocessor market that a single product had a 100.0% market share.

    Indisputably if you ignore the Motorola 6800 and the MOS 6502 and the Z80. Even if you did ignore them, you still wouldn't end up with 100% microprocessor market share for the 8080.

  48. Not enough info by Anonymous Coward · · Score: 0

    It could be a RAM latency problem. Right?

  49. AMD processors are faster. by Futurepower(R) · · Score: 1

    I installed FlashBlock and AdBlock and read parts of the article.

    Summary: AMD processors are faster.

  50. Re:Yes, it was really 100% by somersault · · Score: 1

    100% if it created its own market, sure. I've not traditionally been interested in the history of PCs (when I say PCs I mean x86 'IBM PC's, not personal computers in general), but thankyou for informing me :p

    --
    which is totally what she said
  51. Re:The 8080? No way! The Intel 4004 was smokin' ho by david.given · · Score: 1
    Indisputably if you ignore the Motorola 6800 and the MOS 6502 and the Z80. Even if you did ignore them, you still wouldn't end up with 100% microprocessor market share for the 8080.

    Dude, he wasn't talking about the 8080. He was talking about the 4004. And trust me, that processor really did have 100% market share.

  52. Re:Load of Crap by Anonymous Coward · · Score: 0

    Dirty Troll. Care to point out the benchmarks where the Core Duo is humiliated?

  53. Re:Load of Crap by Anonymous Coward · · Score: 0

    For the record, the FX-55 and FX-57 are single core. The FX-60 is essentially a dual core chip constructed from a pair of FX-55s (with the standard AMD dual-core tweaks).

  54. Re:Load of Crap by amyhughes · · Score: 1

    Audio apps (e.g. Logic) running on similarly-clocked dual G5s and Core Duos are about on-par in performance, but that's comparing a full tower to a notebook. I'm looking forward to seeing what the new PowerMacs will do.

  55. Heat is a problem by nephridium · · Score: 2, Insightful
    Even if the notebook was engineered well enough (additional cost) to dissipate the heat fast enough from the CPU there are still several downsides having a hot notebook. You have to consider that the more heat the CPU produces the more will spread through conduction all over the notebook, no matter how well it's engineered. This will cause
    • the overall life expectancy of electrical components to degrade (HDDs, RAM come to mind, and basically anything that uses caps)
    • the LiIon batteries to die earlier (it's annoying to see the capacity dropping within months of use replacing them is still quite expensive)
    • your lap to fry unless you use an insulator such as a telephone book or you restrict yourself to the tabletop

    But if the CPU architecture really is that good, it should be easy to make a cool low voltage version that still has enough power to.. say... run Windows Vista (scnr ;)

    --


    And when you gaze long enough into the code, the code will also gaze into you.
  56. Intel by certel · · Score: 1

    Intel's Duo Core processor was the reason for my purchase of a MacBook this week. As much of a die-hard PC fan as I am, I'm very impressed with the functionality of the Mac OS along with the performance of the laptop.

  57. Re:Load of Crap by jdbartlett · · Score: 1, Funny

    These were the benchmarks left by an Intel Core Duo. Compare that to the benchmarks left by the G5 laptop I built out of my old iMac. Clearly, the G5 burns Intel Core Duo out of business. That's why Apple had to stop making them, G5 was actually too good for its own good - there wasn't the technology to keep those blindingly fast processors cool. Some days, I'd go to work only to find my computer was so fast it'd already opened my apps, written my code, saved the changes, compiled the new build, shut down, and caused a fire hazard, all before I'd finished my morning coffee. Clearly Apple no longer cares about it's customers, that's why it's downgrading to Intel. Clearly Apple is embarrassed by the fact that the G5 iMac outperforms the Intel iMac, that's why they stopped manufacturing the G5. Clearly, and I'll use a programming construct to phrase this because I'm so much more iNtelligent than you (though I'm loath to use those 5 letters that spelled the downfall of the Apple empire in the eyes of yours truly), the difference between (the difference between the announced iMac processor speed and the then G5 processor speed) and (the difference between the released iMac processor speed and the G5 processor speed) is revealing of the fact that Apple actually opened up all the old G5 units and removed the welded-in processors to downgrade them rather than upgrading the Intel machines between announcement and release...
    etc.

  58. comparable price, but not half. by number6x · · Score: 1

    When the mac book pros first came out one of the mac journalists did a compare with the Dell dual core 17" laptop and found the Dell to be more expensive than the 15.4" mac. Dell now offers a 15.4" dual core laptop. If you configure it with Windows media edition and similar hardware it is about $300.00 less than the mac book pro. My guess would be that the Apple hardware is probably a little higher end than the Dell, accounting fo rthe difference. Still $300.00 bucks is a small difference for a top of the line mac OS/x machine compared to a Dell with Windows. You get all the developer tools on the OS/x dvd. Do Windows users get a full version of Visual Studio .net? You can get the Hyundai for $1699.00, or the Mercedes for $1999.00. Which one is the better bargain? There still out of my price range. All I know is that Rails works well on Macs, Windows and Linux. So I've got an amd64 3000 Turion w/1Gb ram (self upgraded from 256MB), running Mepis Linux for under $900. I do have TextMate envy, though!

  59. 2.0 iMac versus 3.0 P4 (Northwood)... by TheRealStyro · · Score: 1

    The iMac is very impressive - fast and responsive even with a full load of video encoders going (handbrake & ffmpegx). Even with those going I was still able to get Firefox open and loaded a site before the pc could get started getting the graphics for a site. The pc was only busy copying a 1.2GB file from the iMac.

    Pc specs - 3.0Ghz P4 w/ HT Northwood core, 1GB memory.

    iMac specs - stock Intel iMac with 1.5GB memory (+600MB memory unused).

    The combination of OS X and CoreDuo has made me a very happy customer.

    --
  60. Eeek! It was great until I saw the $700+ pricetag by Anonymous Coward · · Score: 0

    Eeek! It was great until I saw the $700+ price tag. Then I dropped a brick.

  61. History by dpbsmith · · Score: 1

    Well, it wasn't just important in the history of PCs. The introduction of the 4004 was a pivotal event in the history of electronics (right up there with the Audion, the Klystron, and the transistor itself) and in the history of computing (same league as the Norden bombsight, the ENIAC, and the IBM 360).

    If you don't know what those are, either, you may find that they are really quite worth finding out about.

    1. Re:History by somersault · · Score: 1

      yup, I've done a Computing Science degree, but havent heard of the Audion, Klystron, Norden bombsite or ENIAC.. maybe shouldnt have skipped so many lectures in 3rd and 4th year, though most of the history we learned tended to be about software/coding than the hardware.

      --
      which is totally what she said
    2. Re:History by somersault · · Score: 1

      oops.. well bombsite could also be a valid term, but I meant sight ;)

      --
      which is totally what she said
    3. Re:History by utexaspunk · · Score: 1

      You got a degree in CS without learning what the ENIAC was? I have an ART degree and knew that... In art, we have to take art history classes. Do they not have computing history classes for CS majors?

    4. Re:History by somersault · · Score: 1

      We did an Operating Systems course which I think maybe had some history. Looking up ENIAC now, we probably went through it, though I just didnt know the acronym. I dont think we actually had History of Computing classes. My flatmate went to a different local uni - his workload was a lot heavier, and more practically based, I kind of wish I'd gone there, and I wouldnt have ended up so lazy! Though my Uni was 600 years old, whereas his was only a College until recently, so I expected it to be of poorer quality.. guess not when it comes to Computing (Aberdeen University vs Robert Gordon University).

      --
      which is totally what she said
    5. Re:History by dpbsmith · · Score: 1

      How can you die happy without ever having seen the photo of the log book with the moth taped into it?

      How can you die happy without ever having read about Maurice Wilkes' Aha! moment: "It was on one of my journeys between the EDSAC room and the punching equipment that...the realization came over me with full force that a good part of the remainder of my life was going to be spent in finding errors in my own programs."

    6. Re:History by somersault · · Score: 1

      debugging really is one of the most rewarding parts of programming, heh, anyway.. ignorance is bliss ;)

      --
      which is totally what she said
  62. Only when measured 'per watt' by Anonymous Coward · · Score: 0

    Per watt it's the most powerful thing ever. When measured in "mips per engineer sleeping on futons", it's nearly 4 times as fast as the next best, and when you multiply its cycle length it by the number of years Windows has been around and divide by the number of letters in the name its by far the shortest cycle length.

    Otherwise its way behind and may turn out not to scale very well.

  63. Re:Load of Crap by Anonymous Coward · · Score: 0

    You don't read much, do you. If you can get your nose out of Jobs's ass long enough to read some reviews and discussion, maybe you wouldn't be so ignorant.

  64. As a slashdotter this probably doesn't concern you by nikanj · · Score: 2, Informative

    But laptop heat is a major threat to male fertility. See this article for more details.

  65. Re:The 8080? No way! The Intel 4004 was smokin' ho by Ruphuz · · Score: 1

    The world will never again see the day when one manufacturer so dominated the microprocessor market that a single product had a 100.0% market share.

    It will, when Cyberdyne finds the T-1000's microprocessor.

    --
    My other post is a First.
  66. Just because... by dp_wiz · · Score: 1

    ...with those awesome CoreDuo laptops you can get your testicles burned to a crisp at that great "performance" peaks.

  67. Re:What is AMD going to do? X2 by Brian+Stretch · · Score: 1

    Turion X2, that's what AMD's going to do. Dual core within the same 35W TDP that the Turion ML singlecore uses, so it'll run cooler than the Core Duo. The rumored ship date is May 9th but without details of, say, new HP notebooks built around that there's no way to know how accurate that date is.

    Wanna run 64-bit Windows Vista when it comes out? Intel's current notebooks chips can't play there. Want to run 64-bit Linux? AMD notebooks have been doing that for years.

    AMD doesn't need 65nm as badly as Intel does (better design that's less dependent on massive L2 caches), so they can take their time and get it right before ramping 65nm production. Intel's 65nm yields are likely awful, but they have so many fabs that they can crank out an adequate number of working chips, even if it's terribly inefficient.

    Fun test: try playing a 1080p Quicktime movie trailer with 64-bit VLC and 32-bit VLC. See how much less CPU time the 64-bit version burns. AMD64 does very nice things for codecs, crypto, and Java. It's not all just about breaking the 4GB barrier. Steve Jobs really screwed up by starting out MacOS x86 on a 32-bit codebase that's already obsolete.

    (Not just responding to your post, I just like to dump everything into one reply ;-))

  68. I need. by dp_wiz · · Score: 1

    Almost all serious linuxes are pretty good at x86_64 mode. And almost all production/server stuff now have all that optimisations for 64 and/or N-way systems.

  69. HTPC status remains questionable by TechGooRu · · Score: 1

    This is an excellent review. The time and effort put into it are obviously substantial. However, I do have one complaint about the review.

    SDTV and DVD decoding are a given: any modern PC can decode them, so I understand why such tests were not performed. However, the reviewers are quite insistent on this processor being an excellent HTPC platform, so it puzzles me that no benchmarks and real world tests were used to document 720p and 1080i HDTV decoding (including de-interlacing for 1080i content). Decoding video is the most important thing a HTPC does, yet these tests were excluded?

    I run MythTV on an Athlon 64 3700+ (2400 MHz), and this processor is just barely able to keep up with software decoding & deinterlacing of 1080i content while ensuring sync to prevent horizontal on-screen tearing. It would be of value to their readers to include software decoding processor utilization for 720p and 1080i content before announcing it an excellent HTPC platform.

  70. Performance pr. watt ?? by Anonymous Coward · · Score: 0

    ...that is just like HP pr. liter... my Lupo is as good as a Corvette... COOL.
    I'm sorry but I am not impressed... and the fact that it is a dual core does not do it better.
    I will agree that it is Intels best mobile CPU but it is not Intels best CPU... it probably will be when it get 64 bit...

  71. Re:Yes, it was really 100% by SirDaShadow · · Score: 1

    It was 100.00000000000%.

    On a Pentium 60 it was 100.0067482902% :-P

  72. Re:Hot vs. OTHER Intel chips Holy Toasters Batma by NutscrapeSucks · · Score: 0, Flamebait

    I'd already switched from Intel to AMD based largely on heat and power issues

    Then you are an ignormaous, because Intel Core soundly beats AMD on these factors. I suggest reading the article.

    --
    Whenever I hear the word 'Innovation', I reach for my pistol.
  73. Re:The 8080? No way! The Intel 4004 was smokin' ho by logicpaw · · Score: 1
    Indisputably if you ignore the Motorola 6800 and the MOS 6502 and the Z80. Even if you did ignore them, you still wouldn't end up with 100% microprocessor market share for the 8080.

    The Z80 and 6502 were done well after the 6800 and 8080, because they were done by some original designers of the 8080 and 6800 (Fagin and Peddle) who later left to start up at new companies (Zilog and Mostek). Not sure how far apart the intoduction dates of the 8080 and 6800 were. The 8080 may have had a time window alone as a shipping fully usable 8-bit CPU (unlike the harder to interface and program 8008).

  74. wow, I get such global condemnation so easily.... by CFD339 · · Score: 1

    I'm impressed that you can determine my mental capacity so easily and at such a distance. I have not yet purchased a MOBILE chip of either sort (not in a few years anyway) as I've been waiting for this to sort out. I have switched in my purchases on Desktops and am very pleased to have done so. If intel produces the best desktop processors again (and I'm talking about common use, not bleeding edge overpriced ones) then I'll switch back. When AMD or Intel gets someone producing dual core mobile chips with reasonable heat and battery life at reasonable cost -- and in units under 10 pounds with a 15" tablet screen -- I'll by my new laptop. For now, I remain unimpressed.

    As for your comment, I'll remind you that keyboarding at a distance is a bit like Tequila. It makes a big man seem seem little, and a little man feel big. I guess I know which that makes you.

    --
    The problem with quotes on the internet, is that nobody bothers to check their veracity. -- Abraham Lincoln
  75. Re:Hot vs. OTHER Intel chips Holy Toasters Batma by jp10558 · · Score: 1

    By the timing and the phrasing, I'm betting he switched before the Core came out.

    --
    Opera, Proxomitron-Grypen,GPG 0x0A1C6EE3
  76. I knew you wouldn't read the article by NutscrapeSucks · · Score: 0, Flamebait

    Because the article clearly showed a desktop Core system being tested.

    Face it, you're just an douche reapeting generic INTEL IS SO HOT, RITE? LOLZERS! crap from 2 years ago in *exactly* the wrong article, and now you are bitching like big bitch because you got called on it.

    --
    Whenever I hear the word 'Innovation', I reach for my pistol.
    1. Re:I knew you wouldn't read the article by CFD339 · · Score: 1

      The comment I responded to specifically remarked that it ran hotter than the existing Intel chips -- The comment did not indicate specifically that this was intel's Mobile chips. I currently have a notebook with a P4-Mobile in it and it runs too hot. If these new ones run even more hot, then I hold to my statement -- I won't buy it.

      At the desktop, the intel chips I have -- P4 HT's at 2.8 and 3.0 ghz, run so hot just doing normal activities its insane. I don't even overclock, I just write multithreaded software. AMD's chips are proving to be -- for the work I do, cooler, less expensive to operate, and at least as fast. I almost am willing to bet that if I were to test they'd have better disk I/O performance but can't say that for sure.

      WRT the rest of your idiotic 12 year old wanna-be hacker style drivel, its not worth my time. Hell, even that handle is annoying.

      --
      The problem with quotes on the internet, is that nobody bothers to check their veracity. -- Abraham Lincoln
  77. Any Multiprocessor Motherboards For Core Duo? by Anonymous Coward · · Score: 0

    I'm looking to build a new desktop soon.

    Would like to put a pair of dual core CPUs on a dual processor motherboard for a total of 4 CPUs. Have these hit the market for Intel's Core Duo chips yet? Otherwise I may go for 2x of the X2 Opterons.

    1. Re:Any Multiprocessor Motherboards For Core Duo? by Wesley+Felter · · Score: 1

      It's called Xeon LV aka Sossaman. Supermicro has motherboards.

  78. Re: Woohooo go Pentium III by Anonymous Coward · · Score: 0

    Us silent pc enthusiasts have known about this for a long time.
    I highly recommend this site: http://www.silentpcreview.com/

    (I don't work for them)

  79. Re:The 8080? No way! The Intel 4004 was smokin' ho by shutdown+-p+now · · Score: 1
    Goddamn, are all the UIDs over 500000 stupid 13-year-old kids who don't understand English?
    Why, some of us do understand English!
  80. Re:Take note! Many of these features inside AMD to by node+3 · · Score: 1

    Assuming AMD can tune Turion64s to be more power friendly, they'll be able to best Intel's fancy new Core Duo. If they can't, then Intel may be the best game in town for the first time in a decade (assuming they price competitively).

    Wait a minute. If AMD can't do something it isn't currently doing, then Intel will have the better chip? Doesn't that mean that, right now, Intel has the better chip?

    I make no claims about the CoreDuo being the world's best x86 chip, I'm just following your logic.

    I also take exception to your "first time in a decade" quip. It's wrong in two ways. Ever since AMD first overtook Intel in overall quality (price/performance/power), the lead has shifted back-and-forth (with, recently, AMD holding the lead for most of the time). But beyond that, in '96, AMD did not have the best chips on the high-end. They were quite competitive (but not clearly superior) price-wise on the low-to-mid-end, though. It wasn't until a few years later that AMD really began to take a definitive lead over Intel.

  81. Re:Load of Crap by jdbartlett · · Score: 1

    Troll? Gee, sorry, I was only joking around!

  82. Re:Zonk 5-on-1: Slashdot's Best Gay DVD? by The+Lyrics+Guy · · Score: 1

    omg hi2u ltns lol@911

    irc?

  83. Hard-Core by leabre · · Score: 2, Funny

    I'm waiting for the Intel Hard-Core Extreme Edition: Keep your servers up and running all night, watch them scream.

    Uhmmm... count me in.

    Thanks,
    Leabre

  84. Re:yeah,till 6502 came and smash it :3 by Anonymous Coward · · Score: 0

    the poor poor 8080 was not able to stop the 25 dollar,2 cycle per instruction beast

  85. Re:The 8080? No way! The Intel 4004 was smokin' ho by GaryPatterson · · Score: 1

    100% market share?

    Wasn't that the time of the Zilog Z80 chip as well? I recall a good number of CP/M machines around that time, as well as a lot of home microcomputers (ZX Spectrum, for example) that used it.

  86. Re:Load of Crap by eris23007 · · Score: 1
    Good post, and useful... wish I had mod points. Is Logic (et al) native yet or are they running Rosetta?

    ...I'm looking forward to having one machine where I can run ProTools and/or Logic, then "once in a while" load up a DX plugin or virtual instrument on a BootCamp session. Fun times!

    --
    And I'm... too sexy for a sig...
  87. It should be by Nazmun · · Score: 1

    2.0 ghz pentium-m's easily compete with 3 ghz p4's. The core duo is an improvement on the pentium m, plus you've got newer motherboard architecture and probably memory too.

    Faster processer, faster chipset, and quite possibly faster memory. Why wouldn't you expect it to be faster?

    --
    Hmmm... Pie...