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Intel Launches Power-Efficient Penryn Processors

Bergkamp10 writes "Over the weekend Intel launched its long-awaited new 'Penryn' line of power-efficient microprocessors, designed to deliver better graphics and application performance as well as virtualization capabilities. The processors are the first to use high-k metal-gate transistors, which makes them faster and less leaky compared with earlier processors that have silicon gates. The processor is lead free and by next year Intel is planning to produce chips that are halogen free, making them more environmentally friendly. Penryn processors jump to higher clock rates and feature cache and design improvements that boost the processors' performance compared with earlier 65-nm processors, which should attract the interest of business workstation users and gamers looking for improved system and media performance."

172 comments

  1. revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 3, Informative

    While Penryn is a small increase in performance, it is not a big change in the architecture. Instead of upgrading to Penryn, customers can expect Nehalem, the next major revision in the Intel architecture, was responsible for the release in 2008.

    At the Intel Developer Forum in San Francisco in September Intel showed, and said it would be a better yield per watt and better system performance through its Quick Path Interconnect system architecture. Nehalem chips will also provide a memory controller integrated and improved communication between system components.

    1. Re:revolutionary? no, but still noteworthy by cayenne8 · · Score: 1
      I'm wondering when the new chips will show up in the macbook pro.

      I was about to buy one, but, if this is coming up soon, I may wait...

      --
      Light travels faster than sound. This is why some people appear bright until you hear them speak.........
    2. Re:revolutionary? no, but still noteworthy by Parag2k3 · · Score: 1

      Penryn offers a few extra features over the existing Conroe/Kentsfield design. Mainly lower power requirements, higher clock speeds as well as SSE4 which is useful for video encoding. This is just the tock in Intel's tick-tock strategy. Nehalem should be much more exciting.

    3. Re:revolutionary? no, but still noteworthy by ircmaxell · · Score: 1

      Well, Nehalem will kill AMD's last big advantage in CPU design (integrated memory controller)... For now, AMD still has that advantage (not to say that Intel doesn't have it's own advantages)...

      I'm curious to see how Penryn will stack up against existing archetectures (including AMD's offerings), and if it will be worth the cost to upgrade (seeing as there is another major upgrade on the way from intel in the next year). Benchmarkers have at it...

      --
      If a man isn't willing to take some risk for his opinions, either his opinions are no good or he's no good
    4. Re:revolutionary? no, but still noteworthy by stoolpigeon · · Score: 1

      When you get one, be sure to buy the shirt also.

      --
      It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
    5. Re:revolutionary? no, but still noteworthy by Azuma+Hazuki · · Score: 5, Insightful

      I am a dedicated AMD fangirl...every computer I've ever built had an AMD chip in it. But Intel really hit it on the head with the Core 2 arch and I see no sign of them slackening. I am actually looking forward to Nehalem and its shrink (which is probably the next time I'll have the money to spend on anything not college or food/supply-related).

      If this is how it ends for AMD, this is how it goes. I'll be sad, and may buy AMD anyway for some other reason (even if it's just stubborn fangirlism) but I respect Intel's design team. Their ethics, no, but their design is top notch this time around.

      --
      ~Eien no Inori wo Sasagete~ Searching for my Hatsumi...
    6. Re:revolutionary? no, but still noteworthy by AvitarX · · Score: 4, Insightful

      One reason to buy AMD is that if they go out of business Intel may stop innovating.

      Even if you are getting a worse deal in the short run, an upgrade cycle or two in the future may be much worse (comparatively) if everyone goes Intel.

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    7. Re:revolutionary? no, but still noteworthy by Pojut · · Score: 4, Informative

      Another good reason is that it is far cheaper (at least last time I checked prices) to go with AMD...especially if you aren't doing any gaming or audio/video work. While Core 2 blasts AMD out of the water, the price difference makes AMD a very smart buy for every-day use. For gaming, AMD's offerings still work great, and the money you save on the processor can instead be used towards a more powerful video card.

    8. Re:revolutionary? no, but still noteworthy by somasynth · · Score: 1

      From what I remember, only 'extreme' and server models of the architecture will have integrated controllers.

    9. Re:revolutionary? no, but still noteworthy by dreamchaser · · Score: 3, Interesting

      You should probably check the prices again with an eye towards price/performance ratios. AMD hasn't been cheaper for a long time. You can save a few bucks by settling for lower performance, but not enough to upgrade that video card or any other significant components.

    10. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      Intel has the best bang4$ down to the e2140 Core2 based CPU which is around $70. The Celeron-L is also Core2 based, but only uses 1 core, and will kill any single-core AMD CPU when overclocked.

      AMD wins in the super-budget category ($40), but Intel has the market covered at every other price-point.

    11. Re:revolutionary? no, but still noteworthy by necro81 · · Score: 3, Informative

      The biggest thing about Penryn is the move to 45-nm fabrication, and the technological advances that were required to pull it off. IEEE Spectrum has a nice, in-depth (but accessible) article on those advances. High-k dielectrics and new metal gate configurations will be how advanced ICs are produced from now on. It is as large a shift for the fabs as a new chip architecture is for designers.

    12. Re:revolutionary? no, but still noteworthy by ircmaxell · · Score: 5, Informative

      Ummmm.... Check this out... http://www23.tomshardware.com/cpu_2007.html

      This chart shows that in terms of Price/Performance for the average user, Intel has only two CPU's that can compete with AMD's leading X2 (non-FX) processor (the 6000+, which is the highest AMD they have benchmarked). The first is the E2160, and the second is the P4E 613.

      The field is LARGELY domainated (at the best scores that is) by AMD... Intel has 5 in the top 20, 1 in the top 10, and 0 in the top 5. AMD, conversely, has 2 x2's in the top 5...

      --
      If a man isn't willing to take some risk for his opinions, either his opinions are no good or he's no good
    13. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      You're welcome to buy inferior products to support AMD. I'll simply buy whatever is fastest so my work can be done quicker and I can do other things with the saved time.

      Intel sells chips. To stop innovating means they won't sell any more chips other than to replace those that die. That doesn't sounds like a good business plan, to me.

    14. Re:revolutionary? no, but still noteworthy by bean123456789 · · Score: 1

      or perhaps you could buy the better chip so that AMD will get their act together and innovate again, that's how a consumer driven market works people.

    15. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      Yes, because in that span with no credible competition Intel innovated so much.

    16. Re:revolutionary? no, but still noteworthy by Deliveranc3 · · Score: 1

      Actually AMD is still a better value if you want a good motherboard... Serious Intel motherboards start at around $150 while AMD has high quality boards starting around $70...

      Intel is still tempting but AMD isn't outclassed performance/price wise.

      That being said my AMD 2600+ is still going strong, I tend to buy when performance has increased 3-4x, processors don't seem to be doing that, lower power consumption is nice but I'd prefer 3ghz quad cores, which should be possible with this latest design shrink in the $100-150 price range...

    17. Re:revolutionary? no, but still noteworthy by rossifer · · Score: 1

      You should probably check the prices again with an eye towards price/performance ratios. AMD hasn't been cheaper for a long time.
      You should probably check the prices again with an eye towards price/"good enough" ratios. AMD has been cheaper for a long time.

      For daily web browsing, I'm perfectly happy running Ubuntu or XP on an underclocked Sempron from two years ago. Actually, I am so rarely waiting for the computer to do anything that I could probably underclock it further and make it even quieter.

      Even for software development, having enough memory counts for a lot more than an incrementally higher performance CPU and I can save enough going with an low performance Athlon dual core (savings over any Core 2 duo mobo+cpu) to add another 2GB to my dev machine and have enough left over for a nice sushi dinner with my wife.

      I don't get twice as much utility from twice as much CPU horsepower. Not for about five years. So the linear price/performance comparison you mentioned is utterly irrelevant to my buying decisions.
    18. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      Especially check out the Pentium Dual Cores: the E2140, E2160, and E2180. These cheap little processors overclock 80-90% easy and outperform even some of Intels fastest dual cores like the 6750 but at only a third of the cost.

    19. Re:revolutionary? no, but still noteworthy by WuphonsReach · · Score: 1

      That being said my AMD 2600+ is still going strong, I tend to buy when performance has increased 3-4x, processors don't seem to be doing that, lower power consumption is nice but I'd prefer 3ghz quad cores, which should be possible with this latest design shrink in the $100-150 price range...

      If you count dual-core, we're at the 4x point. The Athlon64 X2 5200+ (or the slightly less expensive 4800 or 4600) will be about as twice as fast as your current CPU when using one core, or 4x faster when using both cores.

      While I wouldn't rush to upgrade... dual-core is VERY nice to have. I moved from a laptop CPU (about as fast as a 2600+) w/ 1GB to a Core 2 Duo w/ 3GB and the responsiveness is night/day. And I'm looking forwards to affordable quad core units in about 1-2 years.

      --
      Wolde you bothe eate your cake, and have your cake?
    20. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      Price-performance comparisons that show Intel beating AMD across the board ignore the substantial price difference between Socket T (Intel) and Socket AM2 (AMD) motherboards. A $70 Intel CPU on a $140 Intel motherboard shouldn't be compared with a $70 AMD CPU on a $70 AMD motherboard; it should be compared with a $140 AMD CPU on that motherboard.

      (Yes, you can get a $70 Socket T motherboard, but you'll regret it...)

    21. Re:revolutionary? no, but still noteworthy by Xabraxas · · Score: 1

      From what I remember, only 'extreme' and server models of the architecture will have integrated controllers.

      From what I've heard this is true for 2008 at least. I'm sure the technology will take over on more consumer level intel processors in 2009.

      --
      Time makes more converts than reason
    22. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      A Core 2 Duo-based machine is ~140$ more expensive than an Athlon X2 system, and will consume more power so a higher price in the long run. There's no good motherboard for less than 100$ when it comes to LGA775, at least ones that include all the features of their AM2 counterparts.

    23. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      "One reason to buy AMD is that if they go out of business Intel may stop innovating."

      World needs more suckers like you

    24. Re:revolutionary? no, but still noteworthy by sanman2 · · Score: 1

      AMD can still come back with their CPU-GPU fusion. That's where they're ahead of Intel.

    25. Re:revolutionary? no, but still noteworthy by boriquajake · · Score: 1

      OK, why is anybody even bothering to answer a post that is so obviously fake. There is no such thing as a girl on slashdot. Go back to your all "lesbian" love shack on second life, Hazuma, you liar.

      --
      I only scored 35% on the Nerd Test, I'm sorry.
    26. Re:revolutionary? no, but still noteworthy by Anonymous Coward · · Score: 0

      You use a computer like a girl does. Underclocked Sempron indeed... Ya know a Q6600 at stock speed is pretty damn quiet.

    27. Re:revolutionary? no, but still noteworthy by Azuma+Hazuki · · Score: 1
      Are you that threatened by the idea of a well-spoken, technically-literate woman? We are out there, we exist, and we (or at least I) don't give a damn what society and gender roles tell us we should be, act, do, say, or look like. I will curse, argue, rant, geek out, and weigh in with opinions as much as any guy here, and there is nothing you can do to stop it. Get over yourself!


      And why would my orientation matter to you in the first place? You're obviously never going to have sex anyway, if this is how you act online. I can't even imagine what kind of a disaster you are face-to-face with a woman who can actually see you and read your body language. I'm not defined by my sexuality either; I'm a woman who happens to like women, not a separatist man-hater, though you make a VERY good argument for that cause...

      In case you're one of those tl;dr types: Go to Hell. Thank you.

      --
      ~Eien no Inori wo Sasagete~ Searching for my Hatsumi...
    28. Re:revolutionary? no, but still noteworthy by boriquajake · · Score: 1

      Are you retarded? I was making fun of the stereotypes the even people on slashdot have about about people who read slashdot and it was hilarious. If anything, my intent was to completment you for not being afraid to go against those stereotypes, but you had to go and ruin it by being a bitch and an idiot.

      --
      I only scored 35% on the Nerd Test, I'm sorry.
    29. Re:revolutionary? no, but still noteworthy by Azuma+Hazuki · · Score: 1

      I've had to deal with more than enough bullshit both online and off already about these exact same issues, so it's a bit of a sensitive area. And I don't believe you were "just poking fun" either. Sounds more like you're backpedaling now that you realize you screwed up.

      --
      ~Eien no Inori wo Sasagete~ Searching for my Hatsumi...
    30. Re:revolutionary? no, but still noteworthy by boriquajake · · Score: 1

      Are you freaking crazy? You are telling me that you were not aware of any negative stereotypes about the "nerds" on slashdot? About them not having girlfriends and never getting laid and spending all of their spare time pretending to be bi-sexual asian schoolgirls online? Of course I was making fun of them, you stupid &%$#!! The best part, though, is that you have proven to be just as socially retarded as any of the geeks that fit the stereotypes.

      --
      I only scored 35% on the Nerd Test, I'm sorry.
    31. Re:revolutionary? no, but still noteworthy by Azuma+Hazuki · · Score: 1

      I know about the stereotypes. You're a perfect example of them, from the sound of it. Now shut up and quit harassing me.

      --
      ~Eien no Inori wo Sasagete~ Searching for my Hatsumi...
  2. Still sticking by guruevi · · Score: 1, Interesting

    It's sad that the industry is still sticking to the x86 instruction set. It should've been replaced a long time ago with a pure RISC instruction set especially now with the quest for less power-hungry chips. The Power/PowerPC architecture was good but because they didn't have enough demand, the price was high and development low. A few failures (compare to Netburst) and their customers (amongst them Apple) went running to the competitors.

    We're still running PowerPC here because they're low-power and do certain mathematics very well (I'm not the science guy). Hopefully Apple will switch back to PowerPC or so now that they are fully "Universal" and IBM has some promising chips lined up.

    --
    Custom electronics and digital signage for your business: www.evcircuits.com
    1. Re:Still sticking by Peter+Cooper · · Score: 1

      What you say is directly comparable to the internal combustion engine, say. It makes a lot of sense (and has done so for a lonnnnnng time now) not to use gasoline and to instead work on alternative engine technologies, compressed air, hydrogen, ethanol, and so forth.. but these things are still sideline projects. The engine / automotive industry is far more fragmented (in terms of suppliers and target markets) than the PC industry and a lot older.. and if they haven't learned the lessons, I can't see alternative instruction set technologies taking off until a transition becomes entirely seamless and transparent to the average user (Apple made a great step in this direction with the PPC/x86 "Universal" stuff).

    2. Re:Still sticking by Waffle+Iron · · Score: 4, Informative

      It should've been replaced a long time ago with a pure RISC instruction set

      It was, when the Pentium Pro was introduced circa 1997. The instruction set the programmer "sees" is not the instruction set that the chip actually runs.

    3. Re:Still sticking by jonesy16 · · Score: 5, Informative

      Actually, one of the reasons that Apple jumped off of the PowerPC platform was BECAUSE of their power inefficiency. The G5 processors were incredibly power hungry, enough so that they could never get one cool enough to run in a laptop and actually offered the Mac Pro line with liquid cooling. Compare that to the new quad-core and eight-core mac pro's and dual core laptops that run very effectively with very minimal air cooling.

    4. Re:Still sticking by pla · · Score: 2, Insightful

      It's sad that the industry is still sticking to the x86 instruction set.

      Why? Once upon a time, the x86 ISA had too few registers. Today, that problem has vanished (simply by throwing more GP registers at the problem) - And even then, so few people actually see the problem (and I say that as one of the increasingly rare guys who still codes in ASM on occasion) as to make it a non-issue, more a matter of trivia than actual import.



      The Power/PowerPC architecture was good

      I know I risk a holy-war here, but: No, not really. PPC didn't suck, and held its own for its era. But it didn't scale well, it always cost significantly more for a given level of performance, and even its biggest advantage, "Vector" processing (aka SIMD), vanished with the introduction of the original MMX into the x86 line. After that point, only clock speed and number of execution units mattered (and of course price, never forget price), and the PPC simply fell further and further behind. Apple "switched" for a damned good reason, and "Intel Inside" doesn't describe it.



      It should've been replaced a long time ago with a pure RISC instruction set especially now with the quest for less power-hungry chips

      First of all, all modern chips have a native RISC-like core with an x86 frontend implemented entirely in microcode - So if the world still wanted PPC, Intel could release a C2D tomorrow that exported that as the visible interface. Arguing CISC vs RISC in today's world has as much meaning as arguing over case colors.

      Second, the CPU's ISA has no (direct) effect on power consumption. RISC processors traditionally drew less power because they simply had fewer transistors (and a painfully small instruction set to show for it). A "modern" RISC processor, with multiple cores, multiple deep pipelined execution units, a variety of FP and SIMD units, and multiple levels of fairly large cache, would draw power comparably to anything currently available from AMD or Intel.

      Finally, this battle died with DEC and SGI and MIPS. Let it rest in peace.

    5. Re:Still sticking by Pope · · Score: 1

      The G4 (PPC 74xx) line with AltiVec came out in 1999, two years after MMX debuted in the Pentium. The x86 family still don't come close to the PPC 970 line when it comes to SIMD execution.

      --
      It doesn't mean much now, it's built for the future.
    6. Re:Still sticking by j-pimp · · Score: 0, Offtopic

      What you say is directly comparable to the internal combustion engine, say. It makes a lot of sense (and has done so for a lonnnnnng time now) not to use gasoline and to instead work on alternative engine technologies, compressed air, hydrogen, ethanol, and so forth.. but these things are still sideline projects.

      Putting aside wars, and peak oil, and the envirorment gas is currently the best way to get an internal combustion engine from point a to b except for perhaps diesel. Diesel trades effeciency for acceleration. Ethanol has less hydrocarbons on a chain so gas will always outperform it unless we find a different exothermic reaction for it.

      Hydrogen holds promise, but that research is probably going to come out of an independent party. I'd much rather see a non car manufacturer create a hydrogen powered V8 (if its a renewable clean fuel source there is no reason I can't be wasteful and drive a car that faster than I need it to be), and sell it to GM, Ford, Crystler, Mercedes, BMW, Honda, Toyota, and everyone else.

      --
      --- Justin Dearing http://www.justaprogrammer.net/ We're just programmers.
    7. Re:Still sticking by Anonymous Coward · · Score: 1, Interesting

      The instruction set the programmer "sees" is not the instruction set that the chip actually runs.

      Huh. That's a strange definition of "replaced" you've got.

      This is like having ATMs that only gave out dimes, complaining about the dimes, and being told "no, we do all transactions in units of $10; the dimes you 'see' are not the same monies that we actually transfer".

      As a user, I don't care what the processor does internally -- could use black magic for all I care. I've written PPC compilers before, but I can't wrap my brain around x86. Could this be why so few new (non-byte)compiled languages exist -- because nobody can figure out how to write a code-emitter for the monstrosities that pass as recent CPUs?

    8. Re:Still sticking by OwnedByTwoCats · · Score: 2, Insightful

      Rather than old-fashioned reciprocating engines, how about outside-of-the-box thinking? A small gas-turbine, powering a generator, battery packs, and then electric motors driving all 4 wheels and offering regenerative braking as well?

      Hydrogen power is best when it doesn't suffer the 40% losses of combustion, i.e. when it goes through a fuel cell and is converted to electricity with 85% efficiency.

    9. Re:Still sticking by doublefrost · · Score: 1

      I don't know about that. The G5's we have seem to produce insane amounts of heat. One day the air conditioning went out, and the room with the G5s got real hot.

    10. Re:Still sticking by Jah-Wren+Ryel · · Score: 1

      Huh. That's a strange definition of "replaced" you've got. No it's not. The context of the statement was someone declaring that x86 should have been replaced with RISC by now. RISC was not developed to improve the lives of programmers, it was developed improve the lives of CPU designers. So, in that context, no one cares if you can grok x86 or not, what matters is if the design principles of RISC have been implemented in these CPUs and they have.
      --
      When information is power, privacy is freedom.
    11. Re:Still sticking by Waffle+Iron · · Score: 1

      Smart people have already solved the X86 compiler problem very effectively. If you want to write a compiler for a new language and X86 assembly is too hard for you, why don't you pick up one of the many existing optimizing compiler back ends and write your language to that? That way you won't have to reinvent the wheel or learn how to use an X86, and you'll get support for *every* major CPU architecture as a bonus.

    12. Re:Still sticking by fitten · · Score: 2, Informative

      As much as it sucks to admit it ;), CISC is even interesting in that it is sort of a 'code compression' built-in sometimes. Sometimes, you can load one CISC instruction that does the work of several RISC instructions. The CISC instruction will take up less memory. This means that not only does it take less memory, it takes less cache space, leaving more for other things (more code, more data) and cache space (particularly L1) is still at a premium. Not only that, a fetch of such a CISC instruction is like several fetches that make up the same sequence of RISC instructions.

      There's a big gap between the CPU and main memory... taking up less memory for instructions and, in effect, fetching more instructions per fetch cycle can have some benefits.

      That being said, there's nothing to prevent you from programming a modern x86 processor in a RISC-like way. It even sometimes has performance benefits. (Some compilers do this already.)

      THAT being said... I haven't programmed in assembly in years... I let compilers do that work for me.

    13. Re:Still sticking by metallurge · · Score: 1

      Compare that to the new quad-core and eight-core mac pro's and dual core laptops that run very effectively with very minimal air cooling.
      Have you actually used a mac pro for anything demanding? I can assure you, the cooling required for a mac pro under full load is far from "minimal". Why do you think there are so many fans in the case? Decoration? Truthfully, I'd say that the cooling in a mac pro is inadequate for a system that's under full load 24x7. Best-case, it's borderline when the system is new.
    14. Re:Still sticking by jonesy16 · · Score: 1

      In fact, I have. I have a Mac Pro at home and 2 mac pro servers at work. I administer all of them and have been unable to get them to spin up their fans beyond the 600 RPM's that they idle at. Specifically, my system at home is currently transcoding some video while running 4 threads of SETI@home. CPU A has a die temperature of 95 degrees Fahrenheit while CPU B has a die temp of 99. Ambient temperature in the office is around 72 degrees. The exhaust fan is at 600 RPM's, CPU fan is at 500, power supply is at 600, and hard drive is at 500. I'm running 3 internal 7200 RPM drives and an ATI x1900XT which contributes some of the heat to the hard drive area. The two systems at work are in more of a controlled environment with the A/C set to 68 and 40% relative humidity. One acts as the email/ftp/web/ldap server while the other is out main compilation system for development work but also doubles as a ldap replicator and file host. Both of them have also never spun their fans up beyond the levels I've indicated.

      I do NOT have info on the eight core machines, but I think I've made my point that under moderate to heavy loads the Intel processors run fairly cool without the need for extravagant cooling solutions. If you still don't believe me, then I encourage you to go to your local Apple store, fire up a couple instances of terminal and your favorite infinite loop and stick your ear up to the case and tell me how long you stand there before you hear the system struggle to cool itself down.

    15. Re:Still sticking by fred+fleenblat · · Score: 1

      At the time, apple commented that the switch (to x86) was made because IBM wouldn't commit to delivering the quantities of G5 that apple requested.

      One suspects that this was simply a red herring or that perhaps IBM was saving the best of the best for their pSeries servers and intended to give apple the lower-testing batches. I can see steve getting pretty pissed off about that.

    16. Re:Still sticking by bob.appleyard · · Score: 1

      Father got a Macbook. Dual core jobby. Play videos full screen for too long and it'll switch off. That's after you've patched the fan controller to actually get the fans going when it heats up. Has had to be sent back once because the CPU cooked itself. Otherwise, it's a nifty little machine.
      I've no idea about the heat put out by the PPC based Macs, but the Intel based ones can get pretty hot, it seems.

      --
      How dare you be so modest!! You conceited bastard!!
    17. Re:Still sticking by metallurge · · Score: 1

      Well, all I can say is That's not a load. This is a load! </crocodile_dundee>. :-)

      I started out with the Mac Pro (2.6, dual dual core) running with Apple's default fan settings, and the system would not run stable under my load with the case closed. I'd see temps of 74 degC (165 degF) on all four cores. All while the fans remained quietly down in the 500-600 rpm range just like you describe. The memory became hot enough to burn skin, as did the heatsink on the NVIDIA card.

      Eventually, I downloaded the fan speed software, and found that even running at about half speed (1400 rpm), the system was not stable with the case closed. So I maxed out the fans at around 2800 rpm and closed the case. Now, my CPU temps run in the 49-57 degC (120-135 degF) range. And the memory and video heatsink are now just barely warm to the touch. So, I think I have enough evidence to make my own claims regarding the (in)adequacy of mac pro cooling under full load. I suspect that if I were running either 3.0s or quad cores that I would push past even 2800 rpms' abiity to do the job. And I have to wonder why, until I forced the speed higher with third-party software, the mac pro would let itself burn up before increasing the fan speed to audible levels. If you ask me, there is clearly a design defect.

    18. Re:Still sticking by Anonymous Coward · · Score: 0

      Dude, there's something way wrong with your machine. My Mac Pro is exactly like the other guy's: the CPUs never get even remotely hot and the fans stay slow and nothing bad is happening. I don't think I've ever seen the CPUs get higher than 40C even under full load.

      Seriously, you've got a warranty repair there. Guaranteed. Your computer is way outside the norm for a Mac Pro. You should not have to run your fans at 2800 RPM just to get it stable.

      By the way, I had a dual G5 2.0 and that thing was hot as hell compared to this Mac Pro. Even when the fans were running relatively slow it was hot; put your hand behind it and you'd feel the hot exhaust. The air coming out the back of my Mac Pro is typically cool to lukewarm. And on the G5, CPU temperatures close to 70C were common.

      Another point of comparison: the G5 chassis had 9 fans total, the Mac Pro has 4. And a lot of G5 models would rev those fans at the slightest provocation.

      (Yes, there really were 9. 2 in the power supply, 2 for CPU intake, 2 for CPU exhaust, 1 for the PCI bay, 1 for the HDs and optical drive, and 1 blower fan which blew across the back of the motherboard. The blower was needed because Apple put the hot G5 memory bridge chip on the backside of the board.)

    19. Re:Still sticking by Peter+Cooper · · Score: 1

      You're right, in a gas-focused world.. but if we'd focused on other technologies earlier, then we'd likely be in a far better situation. The same goes for different types of chipsets. If we'd gone RISC in the early 90s, who knows where we'd be now?

  3. Story ? by Anonymous Coward · · Score: 0

    Don't know whether it's my adblock or what, but I don't see any story at that link. Here's an alternative link & story: http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9046362&intsrc=news_ts_head

    Intel's 45nm Penryn desktop expected to pack a big wallop
    Sharon Gaudin

    November 12, 2007 (Computerworld) Intel Corp.'s new 45-nanometer chip for the desktop, part of the newly released Penryn family, should give gamers, researchers and serious multitaskers a significant performance boost, according to analysts.

    And that is not good news for rival Advanced Micro Devices Inc., which recently started shipping its quad-core Barcelona processor -- built using a 65nm manufacturing process. AMD isn't expected to move to 45nm technology until the second half of 2008.

    The release of Intel's Core 2 Extreme quad-core processor came as part of a larger release of Penryn processors, including 15 server dual-core and quad-core 45nm Hi-k Intel Xeon processors. To make the move from 65nm to 45nm processors, Intel designed a new transistor, stemming leakage and improving energy efficiency. With 820 million of these newly designed transistors in just one chip, Intel is calling it one of its biggest advancements.

    On the desktop side, all of this should add up to a major performance boost.

    Dean Freeman, an analyst at Gartner Inc., said he expects Penryn will be 20% to 50% faster than Intel's previous chip releases in general purpose applications and 10% to 40% faster in technical applications, multimedia and games. For example, someone using Microsoft Excel or PowerPoint should see a 20% to 50% boost, while an Adobe Photoshop user should see a 10% to 40% increase.

    "It's going to mean a faster desktop. It's a more powerful tool, operating applications faster," said Freeman. "Basically, it means that for those of us who are concerned about the speed at which applications work on our desktop, the good news is that it will work faster."

    Boyd Davis, a general manager at Intel, said a larger L2 cache and support for new SSE4 media instructions are part of the chip's performance boost.

    And while no one will be expectantly lining up around the block for the new chips, Charles King, an analyst at Pund-IT Inc. in Hayward, Calif., said that Penryn is a "step up" from previous Intel designs and should appeal to the high-end gamers and workstation customers.

    "The Penryn architecture blends notably high performance with significant steps forward in power efficiency," he added. "It's a bit like a new sports car that hits a higher top speed than previous models, while simultaneously delivering better gas mileage."

    Dan Olds, an analyst at Gabriel Consulting Group Inc., said the Penryn desktop won't just appeal to the gaming community. Power users with more than 10 applications open at once, video editors and researchers are going to be eager for a performance boost.

    Olds added that with this "big step forward" for desktop performance, he's not sure what AMD has to respond with.

    "AMD has their work cut out for them," he said. "[Penryn] will be hands-down the fastest desktop chips in existence ... And it's not just this generation. Intel will just crank this thing faster and faster, and it will be a challenge for AMD to respond."

    Intel last month opened a new $3 billion manufacturing facility in Chandler, Ariz., kicking off mass production of its new 45nm microprocessors. Freeman has previously noted that the opening of the new Arizona facility, named Fab 32, is expected to boost production of 45nm wafers from 5,000 a month in the pilot program at an Oregon facility to 25,000 to 30,000 wafers a month. Davis added that two other new 45nm fabrication sites -- one in Israel and one in New Mexico -- are expected to go online, boosting 45nm production over Intel's 65nm production

  4. Faster and less leaky? by Anonymous Coward · · Score: 0, Funny

    ...faster and less leaky... What a coincidence! Precisely the traits that I look for when switching condom brands!
    1. Re:Faster and less leaky? by julesh · · Score: 1

      ...faster and less leaky...
      What a coincidence! Precisely the traits that I look for when switching condom brands!


      In that case, may I suggest you try some high-K metal-gate condoms?

  5. Halogen free by jbeaupre · · Score: 2, Informative

    I'm sure they mean eliminating halogenated organic compound or something similar Otherwise I think eliminating halogens from chips themselves is just a drop in the ocean. A deep, halogen salt enriched ocean.

    --
    The world is made by those who show up for the job.
    1. Re:Halogen free by julesh · · Score: 1

      I'm sure they mean eliminating halogenated organic compound or something similar Otherwise I think eliminating halogens from chips themselves is just a drop in the ocean. A deep, halogen salt enriched ocean.

      Halogens are elements. Halogenated organic compounds are compounds that contain halogens. In order to eliminate halogens from the chip, they'll have to eliminate all compounds of halogens. I'd have thought that was fairly obvious...?

    2. Re:Halogen free by ajlitt · · Score: 1

      Good point. I was pretty sure that Intel would have a hard time manufacturing chips without HF.

    3. Re:Halogen free by jbeaupre · · Score: 1

      Seems you missed my joke. Which was based on what you describe as obvious. So let me go very slowly. The ocean contains trillions of tons of halogen salts (and by extension, trillions of tones of halogens, all just laying around). So claiming you are getting rid of halogens from computer chips is either silly or they mean something else. I'm guessing here, but hey, let's just assume they aren't being silly. Maybe they mean the halogenated organic compounds that are used to clean and process chips that are link with cancer, ozone depletion, and global warming. Not halogen salts on the chip itself, salts that likely exist in the ocean.

      So let's reiterate:
      1) Not all halogens bad
      2) Oceans contain halogens
      3) Intel must be eliminating bad halogen compounds
      4) or they are eliminating halogens that would be "a drop in the ocean." Get it yet?

      --
      The world is made by those who show up for the job.
    4. Re:Halogen free by cyfer2000 · · Score: 1

      1, I think the GP means organic halogenated flame retardant in the epoxy and PCB used to package the chip.

      2, I am not sure about Intel, but I know many fabs have stopped HF wet etching and use dry etching instead. Because dry etching is actually cheaper and faster.

      --
      There is a spark in every single flame bait point.
  6. Dungeons & Dragons by cthulu_mt · · Score: 1

    Intel engineers should not be allowed to name the new chip lines after their D&D characters.

    --
    Virginia is for lovers. EVE is for griefers.
    1. Re:Dungeons & Dragons by julesh · · Score: 1

      Intel engineers should not be allowed to name the new chip lines after their D&D characters.

      Err... like most recent Intel chip codenames, Penryn is a place.

  7. Can somebody explain by sayfawa · · Score: 2, Informative

    Why is there so much emphasis on size (as in 45nm) for these things? Does making it smaller make it inherently faster or more efficient? Why? I've looked around (well, I looked at wikipedia anyway) and it's still not clear what advantage the smaller size has.

    --
    Free the Quark 3 from asymptotic confinement! Bring your charm! Don't get down! All colours and flavours welcome!
    1. Re:Can somebody explain by Prof.Phreak · · Score: 1

      You can fit more of them on a die, making it cheaper. A die defect kills fewer CPUs.

      Or to make chips more complicated (by using more gates in the same space)---do more with 1 clock cycle.

      Or some combination of both.

      Also, smaller usually means more energy efficient.

      --

      "If anything can go wrong, it will." - Murphy

    2. Re:Can somebody explain by Chabil+Ha' · · Score: 2, Informative

      Think of it in these terms. Electricity is being used to transmit 1 and 0s inside a circuit. We can only do so much to make the conductivity less resistant, so we need to shorten the distance between gates. The less distance an electrical signal has to travel, you can increase the number of operations that are performed in the same amount of time.

      --
      We're all hypocrites. We all have hidden parts, it's the contrast between them that make us more a hypocrite than others
    3. Re:Can somebody explain by compumike · · Score: 5, Informative

      The energy required to switch a capacitor from zero to Vdd volts is 1/2*C*Vdd^2.

      Smaller logic sizes can operate faster because the physical gate area of the transistor is that much smaller, so there's less capacitance loading down the piece of logic before it (proportional to the square of the scaling, of course). However, it also tends to be the case that the operating voltages scale down too (because they adjust the semiconductor doping and the gate oxide thickness to match), so you get an even better effect on energy required. Thus, scaling helps both with speed and operating power.

      The problem they're running into now is that at these smaller sizes, the off-state leakage currents are getting to be of the same magnitude as the actual switching (operating logic) currents! This happens because of the reduced threshold voltage when they scale down, so the transistor isn't as "off" as it used to be.

      That's why Intel has to work extra hard to get the power consumption down as the sizes scale down.

      --
      NerdKits: electronics kits for the digital generation.

    4. Re:Can somebody explain by tehcrazybob · · Score: 1

      Just as you guess, making the parts smaller drops their heat output and power consumption considerably for a given speed. It's also necessary to advance the technology further, because it allows them to create new, faster parts without raising the power consumption.

      --
      Computers need to explode more often.
    5. Re:Can somebody explain by Tim+C · · Score: 1

      Does making it smaller make it inherently faster or more efficient?
      Yes, basically. For one thing, a smaller chip size means that you can get more of them out of a silicon wafer, and wafer defects kill fewer chips. As for efficiency, that should be obvious - smaller chips mean shorter electrical pathways means less distance for the electrons to travel means less energy required to move them about and less heat generated means higher efficiency.
    6. Re:Can somebody explain by Rhys · · Score: 5, Informative

      Smaller size means signals can propagate around the chip faster. It also means you need less signal-fixing/synchronization hardware, since it is simpler to get a signal synced up at a given clock rate. Smaller size generally means less power dissipated. Smaller feature sizes means the CPU is physically smaller (generally), so more CPUs fit on a silicon wafer. For each wafer they produce (a high but relatively fixed cost vs the number of CPUs on the wafer) they get more CPUs out (= cheaper). If a CPU is bad, that is a smaller percent of the wafer that was "wasted" on that CPU.

      --
      Slashdot Patriotism: We Support our Dupes!
    7. Re:Can somebody explain by Waffle+Iron · · Score: 1

      Does making it smaller make it inherently faster

      Generally, yes, mostly because the capacitance and inductance of electrical components usually scales with size. The logic speed is often limited things like R*C time constants. At high enough speeds, speed of signal transmission accross the chip comes into play as well.

      Another factor is with smaller parts, more can be packed onto a die. The more parts you have, the more caching and concurrency tricks you can implement to increase speed.

      more efficient?

      Up to a point, but they seem to have hit a wall. Smaller inductance and capacitance means less power dissipated repeatedly charging and discharging tiny parts of the chip. But now they've made things so small that electrical current is starting to leak through the transistors even when they're "off"; this was a big problem with the hot Pentium 4s. To address that problem, they're switching to strange materials like hafnium. That seems to fix the problem for now, but we'll see how much further they can push it.

    8. Re:Can somebody explain by liquiddark · · Score: 1

      Electromagnetic signal is a function of the charge and the inverse of the square of the distance. The distance between gates is smaller, meaning a smaller amount of charge is required to stabilize the electrical state of the system.

      In addition, the smaller size of gates means that more gates fit in the same-sized die. This effect goes as the square of the change in linear dimension, so a reduction of 33% (~60->40nm) means a net twofold increase in the number of transistors available per unit area. This allows, as the other poster suggested, shrinking of processors OR enrichment of feature set. At certain critical points, there are actually more spaces on the wafer, as well, since wafers are not rectangular in shape (or at least, weren't the last time I researched this topic, which was a few years back). Since more chips can be produced from the same raw materials, the cost of production drops, which typically means the cost of the chip drops.

      There are also opportunities to take advantage of the inherently more "exact" nature of a finer lithographic resolution, but I'm not really familiar with them, so I'll leave that to someone else to discuss.

    9. Re:Can somebody explain by darkmeridian · · Score: 1

      Each silicon wafer that goes through processing to become a bunch of microprocessor costs pretty much the same to make. Having a smaller die makes each chip on the wafer smaller, so you get more chips on each wafer that you process. This also increases your yield so you can sell more chips. Furthermore, the electrons on the chip has to take a shorter path, so there's less heat being evolved when the processor is run. Thus, the chip can be run at a higher clock frequency before heat becomes a problem. In conclusion, moving to a smaller process increases the yield, lowers the cost, and increases the performance. However, moving to 45 nm and smaller processes require updated fabrication plants, and is very hard to do and design for because quantum issues become significant. (For instance, quantum tunneling becomes not insignficant.)

      --
      A NYC lawyer blogs. http://www.chuangblog.com/
    10. Re:Can somebody explain by JoeMerchant · · Score: 1
      Short explanation: size matters.

      It's a better measure than clock-speed these days, size has fairly good correspondance to power efficiency and power efficiency is the main thing holding back higher clock speeds. It's also nice to be able to fit more cores on a single chip, and size helps with that.

    11. Re:Can somebody explain by spirit+of+reason · · Score: 1

      Smaller feature size definitely can make the chip faster. All the signals in a processor are collections of electromagnetic waves (where we're concerned with the voltages), so data cannot travel any faster than the speed of light. By making features smaller, we decrease the distance that the signals must travel and we can raise the clock speed.

    12. Re:Can somebody explain by cyfer2000 · · Score: 1

      It depends. As many people explained to you, the smaller gate opens/closes faster. But thinner interconnect has higher resistance and closer interconnect has higher capacitance. At current gate size, the speed of CPU is dominated by RC delay. So copper has been used to lower the resistance and low K materials has been used to lower the capacitance. Also, as the gate becomes smaller, the leakage become bigger due to tunneling effect, which makes the efficiency low, so high K materials has been used to insulate the gate from the silicon.

      As you may have figure out now, the shrinking of line width doesn't absolutely mean higher speed and higher efficiency. But one thing for sure is that they can stuff more SRAM based cache in the CPU, which helps the "real life" speed a lot.

      --
      There is a spark in every single flame bait point.
    13. Re:Can somebody explain by matt_martin · · Score: 1

      Keep in mind too, that the gate dielectric is usually thinned with each generation, increasing the capacitance per area. A typical corresponding reduction of operating voltage (so-called constant field scaling) with each generation contributes to the CV^2 reduction when going to smaller dimensions.

      Of course, the new high-K dielectrics may shift the curve as they give even more capacitance per unit area for a given thickness while possibly allowing higher voltage.

      And, all of the modern dynamic VDD-scaling features blur things even more, but the basic concepts still hold.

      --
      Lurking in the desert
    14. Re:Can somebody explain by enc0der · · Score: 4, Interesting

      Smaller size means faster but at the expense of more power. As a chip designer I can tell you that the smaller you go, the more leakage you have to deal with in the gates, and it goes up FAST. Now, with the new Intel chips, they are employing some new techniques to limit the leakiness of the gates, these techniques are not standard across the industry so it will be interesting to see how they hold up. I do not understand what you mean by signal-fixing/synchronization hardware. Design specific signal synchronization doesn't change over the different gate sizes. What changes is the techniques that are used as people find better ways to do these things. However, these are not technology specific and tend to find their way back into older technologies to improve performance their as well. In addition, cost is NOT always cheaper because die yield is generally MUCH LESS at newer technologies. For those on the bleeding edge. In addition, development costs go up because design specific limitations, process variance, and physical limitations cause designs to be MUCH HARDER to physically implement than at larger sizes. Things like electromigration, leakage power, ESD, OPC, DRC, and foundry design rules are MUCH worse. What is true is that these people want faster chips, and you can get that, as I said. Although the speed differences are not that amazing. Personally, I don't think the cost justifies the improvement in what I have worked on. Especially on power. Now, going out a few years from now, as they solve these problems at these specific gate geometries, THEN we will start to see the benefits of the size overall.

    15. Re:Can somebody explain by owlstead · · Score: 1

      Well, you can make the die smaller, as others have pointed out, or you can add cache, which *can* also make things faster. Look at the 12 MB caches of the Xeons mentioned in the article. That's quite a number of MB's, that won't take too much space (to keep the costs down). Actually, many of my - smaller - applications could fit easily within the cache alone. Of course, with multiple cores, virtualization and the bottleneck of the main memory, having a big cache *can* really help.

      Note: *can* because it rather depends on the applications used

    16. Re:Can somebody explain by OwnedByTwoCats · · Score: 1

      Ahh, but going to smaller features means, and shorter distances between gates, also means that the lines become narrower. Resistance is proportional to length, and inversely proportional to cross-sectional area. So if you halve the length, and halve the area, total resistance stays the same. Basic EE, folks.

      Smaller might not mean less resistance, unless the lines get shorter faster than they get narrower.

  8. Where's the article? by markswims2 · · Score: 1

    The link to Computerworld is just a title and no article. Penryn must have left the writers speechless...

    1. Re:Where's the article? by Anonymous Coward · · Score: 0

      The link has been fixed.

  9. x86 already has elements of RISC & PowerPC is by Blahbooboo3 · · Score: 4, Insightful

    I believe that x86 already has many of the benefits of RISC chips incorporated into them. Way back in 1995 http://en.wikipedia.org/wiki/X86#Chronology.Intel added to the Pentium Pro a RISC core. From the Wiki article, "During execution, current x86 processors employ a few extra decoding steps to split most instructions into smaller pieces, micro-ops, which are readily executed by a micro-architecture that could be (simplistically) described as a RISC-machine without the usual load/store limitations."

    As for PowerPC Macs, I doubt it. The switch to Intel is what made most new Mac users switch because there was no longer a risk of not being able to run the one Windoze program they might need. If Mac ever went to a non-mainstream CPU again it would be a big big mistake.

  10. Very good for Intel by Trollvalds · · Score: 1

    but not so good for Transmeta who have power saving chips long before Intel invent them.

    1. Re:Very good for Intel by Sunar · · Score: 1

      Unless i'm mistaken they pretty much sucked. These are supposed to be a speed improvement and power savings. ~Sun

    2. Re:Very good for Intel by treeves · · Score: 1

      It's not a matter of "power-saving chips" vs. "non-power-saving chips". It's a matter of degree, and Intel has increased the degree, "performance per watt" as they like to call it, by going to a 45nm process.

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
  11. Kind of funny, and kind of obnoxious by HellYeahAutomaton · · Score: 1

    I've followed the stories about these machines since the hype about their "V8" setups, and even now they miss the important info: Who is going to ship systems with these in them, how much and how soon? Oh, and Intel should be bitchslapped for not making a multiprocessor motherboard that takes the Socket T (LGA775).

    1. Re:Kind of funny, and kind of obnoxious by level_headed_midwest · · Score: 1

      What, and sack sales of more-expensive LGA 771 Xeon 51xx/53xx setups that run that oh-so-wonderful, cool-running, low-latency FB-DIMM memory?

      --
      Just "gittin-r-done," day after day.
    2. Re:Kind of funny, and kind of obnoxious by BlackSnake112 · · Score: 1

      I thought that intel didn't make a LG775 motherboard with more then one socket was most non-datacenter CPUs (Itianium? spelling?) have issues when the cpus count goes over 4. Intel wanted 4 cores fast. They got them but they didn't want people making 8-way home PCs and having memory issues. You notice that the second 45nm cpus have on board memory controllers which should help with the cpu count over 4 issue. When the second set of chips come out watch how many duel socket (maybe 4 way) motherboards come out.
      Would I like an 8 core home PC hell yea, or a quad socket and go 16 way. With a lot of Ram it make a nice VM machine. Now for 3d graphics in a VM.

  12. RISC vs. CISC by vlad_petric · · Score: 4, Informative
    That's a debate that happened more than 20 years ago, at a time when all processors were in-order and could barely fit their L1 on chip, and there were a lot of platforms.

    These days:

    • The transistors budgets are so high that the space taken by instruction decoders aren't an issue anymore (L1, L2 and sometimes even an L3 is on chip).
    • Execution is out-of-order, and the pipeline stalls are greatly reduced. The out-of-order execution engine runs a RISC-like instruction set to begin with (micro-ops or r-ops).
    • There is one dominant platform (Wintel) and software costs dominate (compatibility is essential).

    One of the real problems with x86-32 was the low number of registers, which resulted in many stack spills. x86-64 added 8 more general purpose registers, and the situation is much better (that's why most people see a 10-20% speedup when migrating to x86-64 - more registers). Sure, it'd be better if we had 32 registers ... but again, with 16 registers life is decent.

    --

    The Raven

    1. Re:RISC vs. CISC by TheRaven64 · · Score: 3, Interesting

      The transistors budgets are so high that the space taken by instruction decoders aren't an issue anymore (L1, L2 and sometimes even an L3 is on chip). Transistor space, no. Debugging time? Hell yes. Whenever I talk to people who design x86 chips their main complaint is that the complex side effects that an x86 chip must implement (or people complain that their legacy code breaks) make debugging a nightmare.

      Execution is out-of-order, and the pipeline stalls are greatly reduced. The out-of-order execution engine runs a RISC-like instruction set to begin with (micro-ops or r-ops). Most non-x86 architectures are moving back to in-order execution. Compilers are good enough that they put instructions far enough away to avoid dependencies (something much easier to do when you have lots of registers) and the die space savings from using an in-order core allows them to put more cores on each chip.

      There is one dominant platform (Wintel) and software costs dominate (compatibility is essential). Emulation has come a long way in the last few years. With dynamic recompilation you can get code running very fast (see Rosetta, the emulator Apple licensed from a startup in Manchester). More importantly, a lot of CPU-limited software is now open source and can be recompiled for a new architecture.

      x86-64 added 8 more general purpose registers, and the situation is much better (that's why most people see a 10-20% speedup when migrating to x86-64 - more registers) Unfortunately, you can only use 16 GPRs (and, finally, they are more or less real GPRs) when you are in 64-bit mode. That means every pointer has to be 64-bit, which causes a performance hit. Most 64-bit workstation spend a lot of their time in 32-bit mode, because the lower memory (capacity and bandwidth) usage and cache churn give a performance boost. They only run programs that need more than 4GB of address space in 64-bit mode. Embedded chips like ARM often do the same thing with 32/16-bit modes. If x86-64 let you have the extra registers with the smaller pointers you would probably see another performance gain.
      --
      I am TheRaven on Soylent News
    2. Re:RISC vs. CISC by vlad_petric · · Score: 4, Interesting
      High-performance computing isn't moving away from out-of-order execution any time soon. Itanic was a failure. The current generation of consoles are in-order, indeed, but keep in mind that they serve a workload niche (rather large niche in terms of deployment, sure, but still a workload niche).

      The argument that the compiler can do a reasonable job at scheduling instructions ... well, is simply false. Reason #1: The problem is that most applications have rather small basic blocks (spec 2000 integer, for instance, has basic blocks in the 6-10 instruction range). You can do slightly better with hyperblocks, but for that you need rather heavy profiling to figure out which paths are frequently taken. Reason #2: compiler operates on static instructions, the dynamic scheduler - on the dynamic stream. The compiler can't differentiate between instances of the instructions that hit in the cache (with a latency of 3-4 cycles) and those that miss all the way to memory (200+ cycles). The dynamic scheduler can. Why do you think that Itanium has such large caches? Because it doesn't have out-of-order execution, it is slowed down by cache misses to a much larger extent than the out-of-order processors.

      I agree that there are always ways to statically improve the code to behave better on in-order machines (hoist loads and make them speculative, add prefetches, etc), but for the vast majority of applications none are as robust as out-of-order execution.

      --

      The Raven

    3. Re:RISC vs. CISC by petermgreen · · Score: 1

      Most non-x86 architectures are moving back to in-order execution. Compilers are good enough that they put instructions far enough away to avoid dependencies (something much easier to do when you have lots of registers) and the die space savings from using an in-order core allows them to put more cores on each chip.
      OTOH most non x86 architectures are used in environments where it is feasible to compile for the specific chip.

      to win in the PC market chips must be able to perform reasonablly well on code compiled by compilers targetting older chips as that represents the code that most people will be running.

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
  13. WTF? by thatskinnyguy · · Score: 1

    When TFA is not informative, seek the source. Enjoy.

    --
    The game.
  14. Re:i pooped my pants by tttonyyy · · Score: 2, Funny

    it smells awful. Clearly you're like earlier 65-nm processors - slow and leaky.

    --
    biopowered.co.uk - catalytically cracking triglycerides for home automotive use since 2008. Just say no to big oil!
  15. Energy efficiency with next-GPUs? by failedlogic · · Score: 1

    While I realize that GPUs may be doing more calculations that CPUs (I'm not a Programmer), the power consumption of many graphics cards/GPUs at idle is getting ridiculous (some are 100 to 200 watts), never mind what is needed during gaming. On the one hand, I would buy an on-board accelerator or a cheap PCI-x with the knowledge it won't need additional power to the board, but for the odd games that I play, I need more GPU power. Game consoles' -as a whole like the X360- consumes about 200 Watts @ max draw. This is for the whole system - may PC video cards draw this for the video card alone!

    On the subject of these new chips, I'm quite interested in building a new desktop with a Penryn - been a long time since I upgraded. I'm particularly interested in the Xeon chips because previous designs from Intel included fanless/passive coolers. If this continues on the Penryn, I'll definitely buy one. I'm all for a quieter desktop.

    1. Re:Energy efficiency with next-GPUs? by davisk · · Score: 1

      Passively cooled CPU, but you require cyclonic wind speeds inside the case to keep them cool; The passively cooled xeons are pretty much restricted to 1U rackmount cases, or Tower cases with internal fan ducts that direct airflow directly onto/through the heatsink fins. Essentially you trade the CPU fan for a bunch of chassis fans - a 1u passively cooled xeon machine is just about the loudest you'll ever hear.

    2. Re:Energy efficiency with next-GPUs? by failedlogic · · Score: 1

      Thanks for that tidbit. :) I thought it was more like the passively cooled AMD or Via CPUs. I also haven't seen the passive heat-sink bundled with the Xeon Processors. I'll definitely get a fan cooled based model instead of throwing in case fans which probably won't get enough airflow over the heat-sink.

    3. Re:Energy efficiency with next-GPUs? by davisk · · Score: 1

      At last check, the passive cooler is the active cooler with the fan removed. The actual copper heatsink was identical. Of course, I haven't assembled a rackmount for around a year now, but i dont expect the landscape to have changed too much.

  16. Re:x86 already has elements of RISC & PowerPC by Serge_Tomiko · · Score: 1

    The NexGen Nx586 was actually the first x86 chip to have a risc core... It came out in 1994.

  17. Power efficient??? by pla · · Score: 1

    Intel's own spec sheet shows the best of these (and only a single one at that) with a TDP of 65W.

    Call me a pessimist, but my two main systems peak at less than that at the wall, and I have yet to find them too slow for any given task (though I admittedly don't do much "twitch" gaming).

    1. Re:Power efficient??? by cyberjock1980 · · Score: 1

      No way your computer draws only 65W, unless you have a VERY old computer or a shuttle that can barely do anything. Laptops at the store that are 'power efficient' use 90W power supplies. My system which is in no way a power house, draws 98W idle. Not to mention your power supply is at max 85% efficient.

    2. Re:Power efficient??? by flokemon · · Score: 1

      Some LV versions will probably come later. The same happened with Clovertown.
      Standard Xeon 5300 rate at 80W too, X53xx at 120W. The L53xx Clovertown: 50W. Dual Core Xeon 5138 and 5148: 35W and 40W.

    3. Re:Power efficient??? by SrJsignal · · Score: 1
      Well, first off, it's not possible that your machine is less than 65W at the wall unless it's a laptop, which is hardly a fair comparison.

      Also, TDP is not really a good measure of power efficiency. TDP has to do with how systems need to be designed to get the most out of a chip. This basically means under ~95% load the chip is going to use 65W so the system needs to be designed to handle that. At idle it will use considerably less, so chips with the same TDP can have substantially different real world power usage (especially at idle).

    4. Re:Power efficient??? by pla · · Score: 2, Informative

      No way your computer draws only 65W, unless you have a VERY old computer or a shuttle that can barely do anything.

      Provide an email address and I'll send you a picture of a Kill-A-Watt reading in the high-50W range with the CPU pegged (and in the low 40s idle). I respect your pessimism, but really do run two such systems; One even has something vaguely resembling a decent GPU, though no doubt the hardcore gamers would sneer heartily at it (not that I care, as I said, as I mostly prefer RPG and RTS over FPS).

      As for "older", AMD has two entire lines of modern, dual-core chips running between 31W (Turion) and 45W ("BE" parts). While true that dual 2.3Ghz cores don't rock the world anymore, as I said, they perform so much more than "okay" that I don't see myself upgrading for at least another two years (barring any revolutionary advances in CPU technology before then, which looks exceedingly unlikely IMO).



      Not to mention your power supply is at max 85% efficient.

      I've had enough crappy low-end PSUs take out systems in the past that I buy only the best now - And as a side effect of "quality", you tend to get "efficiency". I personally favor SeaSonic's hardware, of which the newer ones push 88% efficient; Though yes, the ones I have now only claim 85%.

      Regardless, keep in mind that that number applies multiplicatively to whatever your CPU and GPU (and the negligible rest) draw... 0.85*(35+16) wastes only 9W, while 0.85*(120+107) wastes over 40W. Just think about that for a sec - A carelessly designed midrange PC can easily waste, just in PSU losses, my total light-use draw.



      or a shuttle that can barely do anything.

      I run one of those (well, a home-built EPIA system) as my home file server. 22W at-the-wall (not counting the bank of HDDs except the boot drive), and it can perform its one and only real "task" (saturating a gigabit network connection) juuuuuust fine.

    5. Re:Power efficient??? by pla · · Score: 1

      it's not possible that your machine is less than 65W at the wall unless it's a laptop, which is hardly a fair comparison

      See my other response on this topic. Not just possible, really pretty easy, with some care.



      Also, TDP is not really a good measure of power efficiency.

      Agreed, if for no other reason than because it means different things to different companies. But I did say "at the wall", and I meant it.



      Don't get me wrong, I truly applaud Intel's attampts to reduce power consumption. But for me personally, they have a looooong way further to go.

    6. Re:Power efficient??? by OwnedByTwoCats · · Score: 1

      I want to build a home file server that I can run and not feel guilty about wasting power. Can you share details?

    7. Re:Power efficient??? by BlackSnake112 · · Score: 1

      The amd cpu you mentioned is a laptop cpu. Turion == laptop cpu. I doesn't matter what case it is in, a laptop cpu is still a laptop based computer. So you are comparing a laptop's cpu power draw to a desktop's cpu power draw. from amd's site: http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_13909,00.html

    8. Re:Power efficient??? by pla · · Score: 2, Informative

      Can you share details?

      Sure. Start with a VIA Epia LN10000EG (I personally use LogicSupply for my mini-ITX shopping, they haven't screwed me yet). Toss in a gig of DDR2 533 RAM. Get the lowest wattage SeaSonic PSU you can find (or other known quality unit - You will regret saving $30 here).

      Get any ol' $20 ATX case with four (or more) external 5.25 bays. You obviously don't need one with a PSU, but you'll find that it costs less to get one with power and toss the stock unit.

      Get a ThermalTake A2309 iCage (NewEgg carries these), the best $17 you'll ever spend on computer parts. I put one of these (or something comparable) into every machine I build, and it holds up to three HDDs (perfect with a fourth bay holding your optical drive).

      You may want to get a gigabit NIC card rather than using the onboard 10/100. You could also get the... Hmmm... I think Epia EK12000EG, a similar board that has an onboard gigabit NIC, but it costs almost twice the price for basically just that one feature. You also will probably want to get a loose 12cm fan to blow in the general direction of the CPU - Officially the LN10000EG works fanless, but in practice it can get pretty warm.

      And there you go... Everything you need except the actual drives, for under $250. Toss in a DVD burner and a 500GB drive (currently the "sweet" price point) or three, install your favorite Linux distro, and you have an instant home file/media server drawing only 30-50W (depending mostly on what and how many HDDs you put in it; you can also force-throttle the CPU in the BIOS to squeeze out a few more watts) at the wall.



      One warning about drives, though... I've had horrible luck with VIA's SATA drivers for Linux. I'd recommend sticking with the PATA for now, or even going so far as to run Windows if you must use the SATA port(s). And for the record, I do not recommend the marginally-cheaper Epia clones such as JetWay. I've only dealt with a few of them, but they without exception have sucked, and hard.

    9. Re:Power efficient??? by pla · · Score: 1

      The amd cpu you mentioned is a laptop cpu. Turion == laptop cpu.

      I actually mentioned two families of CPU, with the BE parts targetted at the desktop market (though they do draw 45W rather than 35W).



      I doesn't matter what case it is in, a laptop cpu is still a laptop based computer.

      No. A desktop with a LV CPU does not make it a laptop.

      Laptops feel "weaker" than comparably-spec'd desktops for quite a few reasons... From abysmal disk performance, to memory and peripherals that go into low power modes after mere milliseconds of inactivity, to soft-sound/modem/LAN/etc to save on parts and power. Not to mention the near total lack of upgradeability.

    10. Re:Power efficient??? by turing_m · · Score: 1

      I see someone has already asked for details about the file server (it was interesting), could you share some info on the other systems? Thanks in advance. Also, what size/brand of monitor do you run? I wouldn't think you'd go to the trouble of building a really efficient computer without doing likewise with the monitor.

      --
      If I have seen further it is by stealing the Intellectual Property of giants.
    11. Re:Power efficient??? by Wavicle · · Score: 1

      Call me a pessimist, but my two main systems peak at less than that at the wall, and I have yet to find them too slow for any given task (though I admittedly don't do much "twitch" gaming).

      You're using a very apples-to-oranges comparison. Hey, I think it is great that the VIA solution works for you (I use it at home for a server as well), but that system is very, very underpowered. For reference the C7 in your system scores about 1,700 Dhrystones and about 300 Whetstones. Last year's Core 2 Duo scored 31,064 Dhrystones and 8,129 Whetstones. The performance difference is an order of magnitude and then some. Even in VIA's sales literature for the C7 shows performance graphs in "performance per watt" because the raw performance is so poor.

      If games still work for you at 1/20 the speed of a typical gaming processor, great. Even modest non-twitch modern games however would not be so forgiving. Using some industry reviews, the approximate conversion is a 2GHz C7 ~= 1.3 GHz PIII. I've got a Celeron 750MHz laptop at home that would likely outrun the 1GHz C7 CPU, and my kids have a terrible time playing flash games on it. The oldest is 6. They're not much into "twitch" games either.

      --
      Education is a better safeguard of liberty than a standing army.
      Edward Everett (1794 - 1865)
    12. Re:Power efficient??? by pla · · Score: 1

      You're using a very apples-to-oranges comparison

      As I've said to others, see my first reply in this thread. I refer to a modern dual-core >2GHz AMD machine, with a reasonably modern GPU and all the toys you'd expect if you went out and bought a new desktop PC today.

    13. Re:Power efficient??? by Anonymous Coward · · Score: 0

      You're a pessimist. The real testing independent reviewers have done shows that in this 45nm generation, Intel is being very conservative in its TDP ratings. Very very conservative. VERRRRRRRRY conservative.

      Something you have to keep in mind is that Intel wants to push systems manufacturers to design systems to handle a wide range of CPUs correctly. Even if a given CPU model actually uses only 30W at absolute peak, if they want to market that model as a desktop CPU they'll call it a 65W TDP CPU. It's to their benefit if every system integrator designing a desktop system for that socket has a cooling system capable of handling a 65W CPU - that way users can install whatever they like in the system and have a very high probability of it working instead of cooking itself. From Intel's perspective, it means there are more places a high end CPU can fit out in the wild, and they don't have to process as many returns of high-end chips due to inadequate cooling.

      So, in practice, Intel's 65W TDP figure is meaningless for an individual CPU model. There were a few 65nm Core 2 models which were somewhat close to that figure, but the new 45nm models have tested out considerably lower, even the top speed grades. They're just keeping 65W as the baseline for that socket and market segment, is all.

    14. Re:Power efficient??? by pla · · Score: 1

      I wouldn't think you'd go to the trouble of building a really efficient computer without doing likewise with the monitor.

      Well, for starters, obviously go with an LCD. Then, the real problem becomes figuring out the difference between the wattage rating and the "real" draw.

      Currently, for my primary, I have a BenQ FP222, which they spec at 49W (not too bad, most 22" panels rate at 55W). It actually draws around half of that (which seems mostly influenced by how bright you want it), in my experience. I would love to see a real-world comparison of a large number of 19-22" LCD panels, because they all seem to publish draws far, far above what they really use; but no such list exists, that I know of.

      But when you say "go to the trouble", I can't help but think I haven't stressed enough how easily anyone can build a decent low-power rig, without skimping on performance for anything except hardcore FPS gaming. I really didn't do anything special, except picking a good CPU and not getting carried away with picking a GPU massively overpowered for what I want (for reference, the NVidia 7300 series sips power, and a bit higher end, the 8600 looks good if I had to build a new machine today).

      Also, the motherboard you pick can have a HUGE influence on power consumption. For example, picking a board with the ATi (now AMD) 790x chipset over any newer NForce chipset (680i, 780i, or really anything since the NForce 4) will save you a whopping 40 watts alone. Yeah, 48W total - Your chipset can now eat more than the CPU itself!

    15. Re:Power efficient??? by pla · · Score: 1

      I would love to see a real-world comparison of a large number of 19-22" LCD panels

      (replying to myself here)

      Found one, using numbers from PG&E.

  18. Price drop imminent? by goldspider · · Score: 1

    Might this be followed by a price drop in their current offerings? I'm about to buy a new C2D, so I'd wait if it meant a significant savings.

    --
    "Ask not what your country can do for you." --John F. Kennedy
    1. Re:Price drop imminent? by Anonymous Coward · · Score: 0

      Well, the other reason to wait at least a month is AMD will be releasing their new stuff at the end of the month. I think the press release is November 17th or 16th, something like that. It's not going to be faster than C2D, but it will definitely force Intel to lower its prices :)

  19. How Much Hafnium? by Nom+du+Keyboard · · Score: 1

    Just how much Hafnium is there in the world, and has Intel cornered the supply before AMD could get their hands on any of if?

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
    1. Re:How Much Hafnium? by cyberjock1980 · · Score: 1

      I may be wrong, but I remember reading somewhere that the US Navy owned something around 80% of the Hafnium known to exist for their nuclear reactors. Sure they have more than they can use, but its better to have too much than run out. Hafnium is very rare and extremely important in the design of nuclear reactors for many countries.

    2. Re:How Much Hafnium? by Anonymous Coward · · Score: 0

      They have prepurchased all of the Hafnium still in the ground?

  20. Halogen-free by Iowan41 · · Score: 1

    What I want to know is, when are they going to finally make the oceans halogen-free?

  21. Forget laptops by TheDrewbert · · Score: 1

    I'm more interested in what high efficiency chips like this could do for my server room. I have two huge air conditioners to cool a 10'x20' data center. They simply can no longer keep up with the heat coming from the servers. I could install newer, better, bigger air conditioners but that seems to be attacking the wrong end of the problem. VM, 2.5" sata raid, and SAN have all helped somewhat, but the biggest heat problem is still the processors.

    --
    http://www.CelloFourteGroupie.net
    1. Re:Forget laptops by Hoi+Polloi · · Score: 1

      Simple, get rid of your heating systems and reconnect them to your server room. Problem solved!

      And if they get hotter you can reconnect your hot water system to your servers too. Just think, a CPU that doubles as a coffee maker. If you want a fresh cup just set the scheduler to run a job to search for prime numbers.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
  22. Silicon gates? by Anonymous Coward · · Score: 0

    What the FUCK is a silicon gate people? This type of tech journalism really grinds my gears. Should we go back to the basics? A standard CMOS transistor is basically a stack comprised of a silicon substrate, an insulator, and a polysilicon gate. The new thing that Intel is doing is replacing the insulator with a high-K hafnium based material instead of the silicon dioxide that's been used for the past 40 years. And the polysilicon is being replaced by metal. The metal is needed due to the work function discrepancy between polysilicon and the high-K insulator. But cheese and rice people, calling the old style gate a silicon gate does a great disservice to the people who have spent the better part of their lives perfecting the silicon dioxide and polysilicon.

    1. Re:Silicon gates? by Anonymous Coward · · Score: 0

      Completely agree. However, I don't think they should start whipping out band diagrams and work functions.

  23. No More Pentium? by KaoticEvil · · Score: 1

    Is Penryn the core name or the CPU series name? Does this mean the end of the Pentium brand that we have all come to know and love and hate and love again?

    --
    You can close your eyes to reality but not to memories.
    1. Re:No More Pentium? by stevel · · Score: 1

      Penryn is the code name for the CPU series, not a brand name. Specifically, it's the code name for the not-yet-released mobile processor, but as with the previous generation Merom, it has been used to apply to all three processor types (mobile, desktop, server) built from that technology generation. Intel is not introducing any new processor brand names for this as far as I know.

      The processors will be generally sold as "Intel Core 2" or "Intel Xeon". The Pentium and Celeron brand names may also be applied to low-end models.

      Since no new brand names are being used, I expect people to continue to use the code names to try to distinguish these new processors from their predecessors (code named Merom, Conroe, Woodcrest, Clovertown).

    2. Re:No More Pentium? by Emetophobe · · Score: 1

      No More Pentium?
      Where have you been? The Pentium brand was killed off a year or two ago when Intel came out with Core architecture (now on to the Core 2 architecture).

      As for Penryn, you can read about it here.

  24. Re:x86 already has elements of RISC & PowerPC by porpnorber · · Score: 1

    This is a bit like saying that a truck with a rocket plane inside has 'many of the features of a rocket plane.' The point of RISC is to manage the complexity of the processor, minimise the amount of unnecessary work, and shift load onto software wherever that has zero or negative performance impact. By, effectively, adding an on-the-fly compiler in hardware, the Intel engineers have not done this, even if they have streamlined the back-end execution engine using tricks published in the RISC literature.

    But Intel's traditional expertise is in memory and process—and since caches now dwarf execution units, well, there's no need to worry about doing it 'right' anymore! And sadly, I almost mean that.

    The situation is common in computing. The engineering design of familiar systems such as C++ or the Web itself is nothing short of incoherent: layer upon layer of patches and transformative interfaces where a little planning and a more minimalist approach would reduce both resource consumption and programmer effort all around. But performance and efficiency are nowhere near as important to industry as back-compatibility and, well, marketing; and the overheads are concealed by providing capacity that honestly grows much faster than the task at hand.

  25. It's not really true by Moraelin · · Score: 2, Informative

    Well, bear some things in mind:

    1. At one point in time there was a substantial difference between RISC and CISC architectures. CPUs had tiny budgets of transistors (almost homeopathic, by today's standards), and there was a real design decision where you put those transistors. You could have more registers (RISC) or a more complex decoder (CISC), but not both. (And that already gives you an idea about the kinds of transistor budgets I'm talking about, if having 16 or 32 registers instead of 1 to 8 actually made a difference.)

    Both sides had their advantages, btw. If it were that bleeding obvious that RISC = teh winner and CISC = teh loser, a lot of history would be different.

    The difference narrowed a lot over time, though, so neither is purely CISC or RISC any more (except marketting bullshit or fanboy wars.) Neither the original RISC idea nor the CISC one scaled past a point, so now we have largely the same weird hybrid in both camps.

    E.g., the Altivec instruction set on PowerPC is the exact opposite of what the original RISC idea was. The very idea of RISC was never to implement in hardware what a compiler would do for you in software. So the very idea of having whole procedures and loops coded in the CPU instead of in software would have seemed the bloody opposite of all that RISC is about, back in the day.

    At any rate, what both are today is what previously used to be called a microcoded architecture. It's sorta like having a CPU inside a CPU. The smaller one inside works on much simpler operations, but an instruction of the "outer" CPU translates into several of those micro-operations. Which in turn are pipelined, reordered in flight, etc, to have them execute faster.

    What both sides are doing nowadays for marketting reasons is basically calling the inner architecture "RISC", because marketing really likes that term, and the lemmings have been already conditioned to get excited when they hear "RISC". Really, PowerPC's architecture is only "RISC" on account of basically "yeah, but deep down inside it's still sorta RISC like"... and ironically the x86's can make the exact same claim too.

    At any rate, whether you want to call that RISC or not, once you look inside it, both the PowerPC and the Pentiums/Athlons have nearly identical architectures and modules. Sure, the implementation details differ, and some have advantages over other implementations (the Netburst ones had too long pipes, while a G4 had a tiny pipe, so the G4 did have better IPC), but essentially they both are based on the exact same architecture. Neither is more RISC than the other. We can lay that RISC-vs-CISC war to rest.

    2. That said, the x86 still was somewhat hampered by the lack of more general purpose registers. Although the compilers and the CPU itself did optimize heavily around the problem, they didn't always do the optimal job.

    That has changed in the 64 bit version, though. AMD went and doubled the number of registers for programs running in 64 bit mode, and Intel had to use the same set of instructions so they have that too nowadays.

    The performance penalty of that architecture basically became a lot lower than it was in the days of G4 vs Pentium 4 flame wars.

    --
    A polar bear is a cartesian bear after a coordinate transform.
    1. Re:It's not really true by Anonymous Coward · · Score: 0

      E.g., the Altivec instruction set on PowerPC is the exact opposite of what the original RISC idea was. The very idea of RISC was never to implement in hardware what a compiler would do for you in software. So the very idea of having whole procedures and loops coded in the CPU instead of in software would have seemed the bloody opposite of all that RISC is about, back in the day.

      I hate to break it to you but there are no loops or procedures coded into single AltiVec instructions.

      When you started that paragraph I thought you were going to bring up the fact that the original RISC designs often didn't even have support for integer multiply, much less performing four FP multiplies in parallel (the latter being the sort of thing that AltiVec does). Instead those early designs had some specialty integer instructions which happened to be very useful for a software implementation of multiply.

      However, that era of RISC design didn't last long. It turned out to be a bad idea to simplify the instruction set that much.

  26. lead and halogen free by cinnamon+colbert · · Score: 1

    anyone care to calculate the ratio of lead and halogens in intels world output to lead acid car batterys or american's swimming pools ?
    talk about BS
    (swimming pools use large amounts of that well known halogen, chlorine)

  27. CISC to RISC runtime translation by Z-MaxX · · Score: 3, Interesting

    An often overlooked benefit of the way that modern IA32 processors achieve high performance through translating the CISC x86 instructions into microcode instructions is that the chip designers are free to change the internal microcode architecture for every CPU in order to implement new optimizations or to tune the microcode language for the particular chip's strengths. If we were all coding (or if our compilers were coding for us) in this RISCy microcode, then we, or the compiler, would have to do the optimizations that the CPU can do in its translation to microcode. I agree that the Power architecture is pretty cool, but I'm tired of hearing people bash the Intel x86 architecture for its "obsolete" nature. As long as it is the fastest and best thing I can buy for a reasonable amount of money, it's my top choice.

    --
    Dr Superlove 300ml. I use my powers for awesome
    1. Re:CISC to RISC runtime translation by OwnedByTwoCats · · Score: 1

      IA32 is going the way of the passenger pigeon. There may be a few rapidly diminishing flocks left in the wild, but they'll be gone in a blink of the (metaphorical) eye.

      AMD-64 for evah! (or at least, the next decade). Oh, that's also spelled "Core 2"...

    2. Re:CISC to RISC runtime translation by Z-MaxX · · Score: 1

      I agree that the x86-64 architecture is the new desktop and server standard (ignoring embedded systems etc.).

      However, x86-64 is a superset of IA32 and suggests similar design considerations regarding instruction decoding and so on.

      --
      Dr Superlove 300ml. I use my powers for awesome
  28. it's not the halogen atoms themselves by Quadraginta · · Score: 2, Informative

    The problem is not the halogen atoms themselves, but the chemical reactivity a carbon atom gets when it's bonded to a halogen atom. That is, an organic compound that contains carbon-chlorine bonds is obnoxious not because of the chlorine atoms, but because the chlorine atoms "activate" the carbon atoms to which they're bonded (more precisely they make it far easier for nucleophilic and radical reactions to happen at the carbon atom) so that the carbon atom can do chemistry inside you (or inside some other animal) that you really don't want to happen, e.g. mutating your DNA. This is why chlorinated organic compounds (e.g. PCBs, perc, carbon tet) tend to be tightly regulated.

    The halogens themselves (Cl_2 et cetera) and the halogen-oxygen compounds you find in swimming pools (e.g. hypochlorite anions) are merely noxiously caustic, like acid. At high enough concentrations they might scar your lungs and skin, or kill you, but they won't seep into your tissues and do insidious chemistry that gives you cancer or lupus, and they're quite harmless at low concentrations (e.g. what you find in your pool, or in seawater).

  29. AMD Cannot Compete Unless... by MOBE2001 · · Score: 2, Insightful

    If this is how it ends for AMD, this is how it goes.

    AMD is fighting a losing battle. Intel defined the current market and AMD cannot beat them at their own game. They are condemned to always play second fiddle unless they can find a way to redefine the market. They can only do so by reassessing the current state of the art in multicore CPU architecture and computer programming and correct what is wrong with it. And there is a lot that is wrong with it. I call it The Age of Crappy Concurrency. Check it out.

    Now that the industry is transitioning to massive parallelism, AMD has the chance of a lifetime to change the computing landscape in its favor and leave Intel and everybody else in the dust.

    1. Re:AMD Cannot Compete Unless... by olden · · Score: 1

      WTF modded parent Insightful?

      AMD totally rulled with their 64-bit offering, forcing Intel to play catch-up and come up with a compatible instruction set.
      AMD was first with a dual-core x86 (although, ok, not by much).
      Athlons/Opterons have always had integrated memory controllers (big plus esp for multi-CPU systems); Intel is only about to introduce that.
      Look at benchmarks, AMD CPUs still hold well against Intel's offering, and remain faster/cheaper/more energy-efficient in many applications.
      Purely speculating now, but AMD is expected to come up with some interesting CPU/GPU combo; no idea of Intel's plans there, but unless they acquire nVidia (or worked out some secret agreements), they sure don't can't pretend to have the same level of expertise as ATI.

      All in all, no, sorry, I don't think AMD merely "always plays second fiddle" like they used to with their K6 etc. ...Although they certainly need to watch out if Intel really delivers on Penryn and whatever else they sure have in the pipeline.

    2. Re:AMD Cannot Compete Unless... by Anonymous Coward · · Score: 0
    3. Re:AMD Cannot Compete Unless... by MOBE2001 · · Score: 1

      All in all, no, sorry, I don't think AMD merely "always plays second fiddle" like they used to with their K6 etc. ...Although they certainly need to watch out if Intel really delivers on Penryn and whatever else they sure have in the pipeline.

      Nobody is arguing that AMD is as technologically capable as any other CPU company. Their engineering know-how is second to none. AMD's problem is marketing and selling in an Intel-dominated market. Right now, Intel's customers have no compelling reason to switch to AMD. AMD announced a huge loss not too long ago while Intel is sitting on a huge pile of cash and can do whatever it wants. My argument is that AMD needs to define a market of its own (through IP) where it can maneuver at ease, one in which Intel will be at a disadvantage. This new market must also be one that threatens to destroy the old one, putting Intel on a defensive.

      AMD must come up with a new way of doing things that is so advantageous to its cuctomers that they would be willing to break from the past. If they can do that, they will be the new king of the hill. I believe they can. The opportunity is there but will not be for long because there are many other fish in the water. Some unknown startup may come from behind and steal the pot of gold while those two Goliaths are fighting over market share.

  30. Oblig. Hackers quote by athdemo · · Score: 1

    RISC architecture is going to change everything!

  31. High-K eh? by steveo777 · · Score: 1

    Didn't know Intel was into the dietary supplement business. Anyone know where I can pick up a bag of these?

    --
    This sig isn't original enough, it's time to come up with something witty...
  32. Come Full Circle by IorDMUX · · Score: 2, Interesting

    Once upon a time (1970's), everybody used metal for their FET gates. Those aluminum gates are where we got the names MOSFET (Metal-Oxide-Silicon Field Effect Transistor) and CMOS (Complementary MOSFET). In the 1980's, pretty much every fab gave up metal gates for the polysilicon that has been used since, amidst various enhancements in polysilicon deposition technology, self aligned gates, etc.

    Now, the trend seems to be to return to the metal gates of yesteryear and ditch the oxide (the 'O' in MOSFET) for high-k dielectrics (not high-k metals, as the summary seems to say)...

    That's all well and good, but I have one question... when will we get around to updating the term "CMOS"?

    --
    >> Standing on head makes smile of frown, but rest of face also upside down.
  33. Re:x86 already has elements of RISC & PowerPC by nanoflower · · Score: 1

    You are forgetting one of the most important factors in business. Time to market. A fantastic product that's been optimized as much as possible is wonderful, but it won't matter if someone else already has a similar product and controls the marketplace (See how hard AMD has to work to take market share from Intel, or Apple from Microsoft.) Once someone has the market (and the mind share) it's very hard to win it back. So businesses concentrate on getting their product to market as quickly as possible. Yes, that means that products like the Penryn may not be as efficient as possible, but if they are good enough and in the marketplace soon enough, then that is enough to make the company money. Also keep in mind, as I understand it, the back end of the Intel processors may be changing greatly ever few years if the engineers find a better way to speed up their processors. So the underlying micro-code may only have a few years to be worked on before it is replaced with something new. That will greatly limit the amount of time the engineers have to optimize the code, and limit the amount of time and money the company wants to put in to such efforts.

  34. Names of Rivers? by spineboy · · Score: 3, Interesting

    I'm just wondering which will end first - Moores law, or the number of river names left in Washington. For those of you who don't know, all of Intels chip names are named after rivers in Washington state.

    --
    ..........FULL STOP.
    1. Re:Names of Rivers? by frosty_tsm · · Score: 1

      I don't know. However, even after Moore's law ends Intel will still be researching ways to make processors better with different hardware features or architectures. Eventually, there will not be enough rivers...

    2. Re:Names of Rivers? by ikeleib · · Score: 2, Informative

      The names are mostly after Oregon rivers: http://en.wikipedia.org/wiki/List_of_Intel_codenames

    3. Re:Names of Rivers? by Anonymous Coward · · Score: 0

      actually they're named after geological features or cities near the site the cpu was designed. penryn is a city near folsom, ca, the site the penryn design team was located.

    4. Re:Names of Rivers? by alexo · · Score: 1

      For those of you who don't know, all of Intels chip names are named after rivers in Washington state.
      Timna, Banias, Dothan, Yonah, Merom...
      Are they moving Israel to Washington state or relocating Washington state to Israel?

      .
  35. Yes, is a decent processor... by asm2750 · · Score: 1

    ....but every time I look at a motherboard for a intel processor I think of this quote.

    "People can have the Model T in any color...so long as it's black." -- Henry Ford

  36. Price/Performance? Who shops that way? by DanLake · · Score: 0

    If some manufacturer could sell a 1GHz CPU for $5, it would blow away everything else on that price/performance chart but would not run most modern applications. There are only a half-dozen of the high-end desktop processors anyone should even consider purchasing for a new PC. Intel and AMD both have processors in that category, and apparently AMD is ahead in the price/performance metric. In all of the purely performance-based reviews however, Intel has held most of the top spots.

    1. Re:Price/Performance? Who shops that way? by JAlexoi · · Score: 2

      But you are paying for performance ONLY when you buy anything from Intel that is faster than anything AMD has to offer.
      That is, if the X2 6000+ performs like E6700, then buying anything that is faster than E6700 means paying for performance otherwise money down the drain.

    2. Re:Price/Performance? Who shops that way? by Mattsson · · Score: 1

      If some manufacturer could sell a 1GHz CPU for $5, it would blow away everything else on that price/performance chart but would not run most modern applications. What applications, except games, are you talking about that wouldn't run on a 1GHz system, especially if it's with a modern CPU-architecture?

      I can run most modern applications on an old 450MHz P2 system with 1.5GB memory and a TNT2 gfx card.
      The only pieces of modern applications that simply do not work are most modern games and playing high resolution videos.
      Some of the more CPU-hungry applications in other areas work but are a bit slow to work with.
      Most applications released during 2006/2007 run just fine if you've got plenty of RAM and a relatively modern hard-drive.

      Mostly, it's used for internet browsing, downloading stuff, word processing, running Gimp, burning stuff and playing old games.

      A modern 1GHz cpu would probably be at least four times as fast, and I could use a cheap two or three generations old gfx card that would be a hundred times faster.
      Since if I was to upgrade this system, I'd have a budget of about $100-150, I'd love there being really cheap modern cpu's.
      --
      /.Mattsson - My native language is not English, so please don't whine over linguistic errors. (That's lame anyway...)
  37. Re:x86 already has elements of RISC & PowerPC by homer_ca · · Score: 2, Informative

    You're correct that the x86 instruction set is still cruft, and a pure RISC CPU is theoretically more efficient. However, the real world disadvantage of x86 support is minimal. With each die shrink, the x86 to micro-op translator occupies less die space proportionally, and the advantages of the installed hardware and software base gives x86 CPUs a huge lead in economies of scale.

    I know we're both just putting different spins on the same facts, but in the end, practical considerations outweigh engineering purity. x86 is even competing against ARM in the embedded space now, not just in higher powered UMPCs, but also routers too like this one with a 486 class CPU.

  38. POWER6 is now In-Order by emil · · Score: 2, Interesting
    • While POWER5 was out-of-order, POWER6 is now in-order. That's how they plan to hit 5ghz.
    • While you've added 8 more registers, you've also doubled the size of pointers (and thus doubled the memory bandwidth required for them). We've seen several cases where Sparc-32 compiled applications are faster than Sparc-64 on the same platform - therefore I'd benchmark an application in 32-bit mode before I'd take the 64-bit version.
    1. Re:POWER6 is now In-Order by HuguesT · · Score: 1

      Note the all-important "pointer". Yes you have doubled the pointer size, who cares?? the data pointed to is still the same size. I'm sure you can find corner cases where a 32-bit cpu will be faster than the 64-bit counterpart, but for x86_64, my own developer's experience is that it does measureably improve performance.

  39. ...more of a myth by anss123 · · Score: 1

    x86 CPU's have always been microcoded. Even the original x86. The latest Core CPUs are actually closer to 1-1 mapping between microcode and x86 code than ever before :)

    The thing about calling P6 a RISC CPU was that it was a marketing win back in '95 when RISC was all the rage.

  40. Re:x86 already has elements of RISC & PowerPC by Lagged2Death · · Score: 1

    The situation is common in computing.

    I don't disagree, but I think "the situation" is common in design and engineering of all kinds. The flexible nature of IT may result in more and faster-growing cruft, but continuity in the face of technological change (which is where cruft comes from) is important for any business endeavor. Backwards compatibility always trumps everything, despite the cruft it creates, whether you're talking about CPU architectures, internet protocols, user interface paradigms, keyboard layouts, biofuels, mechanical fasteners, building materials, transportation infrastructure, human languages, etc.

    Even if you could scrap the entire existing IT infrastructure and start from scratch, in 30 years time it would be just as crufty as it is now.

  41. Not a problem by ThatsNotPudding · · Score: 1

    Intel will begin to make their own rivers. But they will also be based on the 45 nm process and be damn hard to see.

    1. Re:Not a problem by jd · · Score: 1

      The Beatles might be able to sue them, along with Blackburn, Lancashire.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
  42. What I'd like to see in a 45-nm process is ... by Skapare · · Score: 1

    What I'd like to see in a 45-nm process is an ARM architecture based SoC (System on a Chip).

    --
    now we need to go OSS in diesel cars
  43. Re:x86 already has elements of RISC & PowerPC by porpnorber · · Score: 1

    Certainly the situation is much subtler than that. If time to market were the overriding concern, then complex systems like x86, C++, Windows and the Web would not be in use, since their excessive complexity makes them expensive both to develop and to develop for. Instead, I suspect that their complexity and long effort-to-market is part of the barrier to entry for newer, more sophisticated, better engineered and simpler systems; only the great behemoth developers have the resources to get to the market in a timely fashion, or perhaps even at all, past this mountain of complexity.

    To put it bluntly, more complex designs are harder to copy, and thus to the advantage of entrenched players, even at the cost of product quality and time to market.

  44. Re:x86 already has elements of RISC & PowerPC by kestasjk · · Score: 1

    As for PowerPC Macs, I doubt it. The switch to Intel is what made most new Mac users switch because there was no longer a risk of not being able to run the one Windoze program they might need. If Mac ever went to a non-mainstream CPU again it would be a big big mistake. If Apple changes processor again I'll eat my hat!
    --
    // MD_Update(&m,buf,j);
  45. Re:x86 already has elements of RISC & PowerPC by porpnorber · · Score: 1

    Do you think? I think we currently pay a factor of four or more in cruft, and it won't go away by itself. So our choices for 30 years from now, assuming things go as they have been going, are a factor of 16 or a factor of 64 slowdown, depending on whether we make an effort in this generation or not... not that we will.

  46. Power at idle by Cyphertube · · Score: 1

    My key interest is that I can play the games I want to play when I want to play them, but when I've got my system on doing file sharing, or sitting idle, I don't want to be raising my electric bill.

    It still strikes me that Intel chips suck more power on idle, cost more, and run hotter when they run at capacity. So, since I don't do high-end processing, I don't need one. And my SQL servers benefit more from better bandwidth to the processor that high processing power.

    So far, I have yet to see anything from Intel that will make me want to buy from them. And every time I hear another Intel jingle on the TV, I resent them even more.

    (I also refuse to get a PS3, for the same energy concerns, plus Sony is so damn arrogant.)

    --
    Linux - because it doesn't leave that Steve Ballmer aftertaste.
    1. Re:Power at idle by Wavicle · · Score: 1

      It still strikes me that Intel chips suck more power on idle, cost more, and run hotter when they run at capacity.

      It still strikes me that AMD fanboys would repeat the same old line that hasn't been true for about a year.

      It still strikes me that Intel chips suck more power on idle, cost more, and run hotter when they run at capacity.

      It strikes me even more that the fanboys would trot this out in response to an article on an Intel chip that has an idle power draw less than 4 Watts.

      It still strikes me that Intel chips suck more power on idle, cost more, and run hotter when they run at capacity.

      So if Intel cut its gross margins down to 41% like AMD has, that would be okay, right? It wouldn't be anti-competitive?

      --
      Education is a better safeguard of liberty than a standing army.
      Edward Everett (1794 - 1865)
  47. Revisionist history by Anonymous Coward · · Score: 0

    RISC was not developed to improve the lives of programmers, it was developed improve the lives of CPU designers.

    Wikipedia: "in order to enable easier implementation, greater instruction level parallelism, and more efficient compilers" ... "originally inspired by the discovery that many of the features that were included in traditional CPU designs to facilitate coding were being ignored by the programs that were running on them".

    The "RISC Design Philosophy" section begins: "In the late 1970s researchers at IBM (and similar projects elsewhere) demonstrated that the majority of these "orthogonal" addressing modes were ignored by most programs. This was a side effect of the increasing use of compilers to generate the programs, as opposed to writing them in assembly language."

    If you think RISC is for CPU designers and not compiler users/writers, you've got serious revisionist history issues that I'm not going to touch.

    1. Re:Revisionist history by Jah-Wren+Ryel · · Score: 1

      "In the late 1970s researchers at IBM (and similar projects elsewhere) demonstrated that the majority of these "orthogonal" addressing modes were ignored by most programs. This was a side effect of the increasing use of compilers to generate the programs, as opposed to writing them in assembly language."

      If you think RISC is for CPU designers and not compiler users/writers, you've got serious revisionist history issues that I'm not going to touch. Gee, they threw out stuff that compilers weren't using in the first place.
      That benefits compiler writers and/or other software writers precisely how?
      --
      When information is power, privacy is freedom.
  48. revolutionary? yes by Wavicle · · Score: 1

    The biggest change to transistor fabrication since the creation of the silicon transistor. This is a previously unavailable technology for making integrated circuits that is substantially different than was used before. Isn't there a word in the English language that describes this?

    --
    Education is a better safeguard of liberty than a standing army.
    Edward Everett (1794 - 1865)
  49. The real reason: by HiggsBison · · Score: 1

    Actually, one of the reasons that Apple jumped off of the PowerPC platform was BECAUSE of their power inefficiency.

    No, actually, Apple went off in a huff because Pontiac got the first G6s.

    --
    My other car is a 1984 Nark Avenger.
  50. Which modern apps ? by curri · · Score: 1

    Most apps I run would run on a 1GHz CPU (actually, until September, my main workstation was a 1.2GHz *laptop*). CPU Speed is seldom an absolute requirement. Having enough RAM (in the Gigs) is nice.

    The only app that I see requiring a fast proc is video editing. It would still crawl on a slow one, but it is painful.