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Intel Moves To 533MHz FSB

homerj79 writes: "Intel has launched an upgrade 850 chipset and faster Pentium 4's today. The new chipset, dubbed the 850E, supports a 533MHz (133MHz x 4) front side bus, as do the processors. Supporting processors come in speeds of 2.53, 2.4 and 2.26GHz. The 2.4GHz part is denoted as supporting the new FSB by a 'B' tagged to the end of it. And it appears as if the new chipset gives the P4 a performance boost in most apps over the previous 400MHz FSB chips and the Athlon XP." Meanwhile, back at the other processor ranch, firemoth writes: "Today OCAU has something special - They've gotten their hands on 3 AthlonXP CPU's based on AMD's new "Thoroughbred" core. This is the .13 micron process, of course, with lower voltage. This article compares them to the older Palomino core in both speed and temperature.. and they throw one into a Vapochill supercooling case and see just how fast it can go."

40 of 147 comments (clear)

  1. i850E doesn't officially support PC1066 RDRAM by questionlp · · Score: 5, Interesting
    According to Anand's article on the new 533Mhz FSB P4's and the i850E chipset (which provides official support for the 533Mhz, aka quad-pumped 133Mhz, FSB), that Intel isn't officially supporting the use of PC1066 RDRAM modules which would allow the memory bus and the processor FSB to run in tandem.

    Although quite a few Samsung PC800 modules will run at PC1066 speeds without any problems, but if any installed modules are not capable of running at the higher speed, the memory bus will get capped at the current max of 400Mhz (or 3.2GB/s).

    I guess for now, the new processors don't really, really need the higher memory bandwidth, but as the processor speeds start to hit 3+ Ghz, the extra amount of bandwidth will become more important.

    1. Re:i850E doesn't officially support PC1066 RDRAM by questionlp · · Score: 2, Insightful
      I forgot to make a comment about the AMD T-bred processors. Why doesn't AMD start putting some type of protection on the naked cores? I would really like to see AMD to put on the integrated heat spreaders on the processors to help reduce the chance of cracked and broken cores, as well as help dissipate the heat from the now smaller cores.

      Sure, the T-bred processors won't be producing as much heat (due to the die shrink), but once speeds start hitting well over 2Ghz, I expect the cores to get very, very hot again.

      Just my $0.015 post-taxes.

  2. 2.4GHz clock speed by dattaway · · Score: 4, Funny

    I remember the old ZX81 I built from a kit clocked its Z80 at 3.58MHz, so it could generate the synced television picture directly from the processor.

    With 2.4GHz, I'm sure there will be wireless experiments by attempting to use the CPU as a DSP.

    1. Re:2.4GHz clock speed by BeBoxer · · Score: 2

      The real fun won't hit until 2.4GHz memory busses come along. Only having the CPU core run at 2.4GHz is like having a radio with no antenna. But get a couple inch long PCB trace with a 2.4GHz signal on it, and things get more interesting.

      On the same note, the VGA output nowadays is fast enough to generate AM broadcasts. Or so I'm told. I've never tried it personally.

    2. Re:2.4GHz clock speed by AntiNorm · · Score: 2

      But get a couple inch long PCB trace with a 2.4GHz signal on it, and things get more interesting

      Get too many of those and you won't be able to meet gigahertz timings, much less multigigahertz timings. Also, at frequencies like that, you start running into transmission line issues with the longer PCB traces. If the PCB trace isn't an integral fraction of a wavelength (1/4 of a wavelength, 1/2 of a wavelength, it's really too complicated to explain here), the traces start to introduce complex impedances. This is more of a design issue for the engineers than anything, but it's another reason why you probably won't see much, if any PCB traces running at the full 2.4 GHz.

      --

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    3. Re:2.4GHz clock speed by BeBoxer · · Score: 3, Interesting

      Yeah, I don't know either. I work with 802.11b stuff a fair amount, but I'm no R/F engineer. Still, I can't help but imagine this becoming an all to common occurence:

      D: Greetings, Dell tech support.

      A: Hi, this new desktop you sold me is junk.

      D: What model is it?

      A: The new 2.4GHz P4, with the integrated wireless ethernet and wireless bluetooth keyboard.

      D: And what seems to be the problem?

      A: Every time I try to make a call on my 2.4GHz cordless phone, the computer crashes! And when I surf the web, my phone rings! And everything I type is ending up in my Palm's ToDo list! Then while I was upstairs heating my coffee in the microwave, it caught on fire!

      I mean really, how much stuff can we possibly cram into the 2.4GHz band anyway? Interesting times anyway.

    4. Re:2.4GHz clock speed by psavo · · Score: 2

      I mean really, how much stuff can we possibly cram into the 2.4GHz band anyway? Interesting times anyway.

      Hmm.. I've never ever heard of 900Mhz computer crashing when someone made a GSM (nor NMT900) call...

      --
      fucktard is a tenderhearted description
    5. Re:2.4GHz clock speed by Christopher+Thomas · · Score: 2

      Do yourself a favor and calculate how long that PCB trace would have to be to make an effective antenna. Then post an apology.

      Or just look at the length of any cell phone's antenna (they do unscrew, you know) (hint: it's been smaller than your phone for a couple of generations now)

      Or calculate how long a quarter or half a wavelength at 2.4 GHz is (hint: a *full* wavelength at *1* GHz is only a foot).

  3. 533 Mhz?! by adam613 · · Score: 2, Interesting

    So Intel put the P4 on a quad-pumped bus to get the clock speed to look better. When AMD put the Athlon on a double-pumped 133 MHz bus and said it had a 266 MHz bus speed, nobody believed it. Now even Socket A motherboards admit that they run at 133 MHz now. What gives with Intel doing this? Am I missing something that's supposed to impress me?

    (if I am, please tell me, because otherwise I will be buying an AMD processor for my new computer)

    1. Re:533 Mhz?! by jtshaw · · Score: 2, Informative

      Ya, it is a little miss leading, but effectively it is kinda true. Since it pushes 4 things at once at 133Mhz. it is the same as doing one thing at 533Mhz. Same as AMD pushing two things at once doing 133Mhz is the same as doing 1 thing at 266Mhz.

      In a way I understand too, it is just easier to explain to the non-technical you are running at 266 instead of 133 or 533 instead of 400 or whatever the case may be then it is to explain that you are using both edges of the clock or using such and such method to get 4 times as much through the bus at one time thus creating this thing, that while it runs no faster in Mhz. then before, preforms x times faster.

      I mean, Mac tried to tell people there PPC's were faster then Pentiums for years any many wouldn't buy it because it was slower in Mhz. So you can see why they do what they do.

      Afterall, it isn't about the Mhz. that should matter to us that really know what is going on, what matters is the increase in memory bandwidth. And that is a very real increase. As it was when AMD went to DDR.

    2. Re:533 Mhz?! by Sycraft-fu · · Score: 2

      Ok, the buss runs at 100mhz (133mhz now), but transfers 4 times per clock, giving it an effective rate equal to a 400 (now 533) mhz bus. This DOES make a difference on the P4. It's a high memory-bandwidth chip.

  4. this is no biggy by the_2nd_coming · · Score: 2, Insightful

    who cares what the FSB is at this stage. untill we have SDRAM that supports this "bandwidth" it will not help out total system performence.

    --



    I am the Alpha and the Omega-3
    1. Re:this is no biggy by Wesley+Felter · · Score: 2

      PC3200 RAM, which can match the speed of the 400MHz FSB, is already available (although it's non-standard). If you want more bandwidth than that, use two channels.

  5. Warning by geekoid · · Score: 2

    I have an AMD 1.4 GHz and its too damn hot. I had to create a wind tunnel in my case to keep it cool.
    IS the noise really worth it?

    --
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    1. Re:Warning by Some+Dumbass... · · Score: 2

      I have a 1.3GHz Athlon, and it's fairly cool. With a Volcano 7, I haven't managed to get it above 50C (and that's in a room that was at about 30C). No wind tunnel needed. In fact, since it rarely got about 45C, I swapped out the fan with a quieter but less powerful one (40CFM, not sure how many dB), and it still rarely goes about 45C. My brother's Celeron (a 566, not overclocked) runs at about the same temp with the stock heatsink.

      My point is that, while Athlons do run pretty dang hot, all you really need is a decent heatsink and good normal case cooling (I have those same 40CFM fans as the front and rear case fans).

  6. Wake me when something happens by colmore · · Score: 3, Funny

    *yawn*

    I'm running a 900 mhz Duron right now, and have been for a year and a half.

    I do some pretty heavy photoshopping, media work, and compiling. I've never felt that I was being slowed down significantly by my processor.

    I upgraded to 1GB RAM, and that improved things, but I just don't feel the need to go out and get the latest processor any more, the need is simply not in the applications.

    Maybe if I were playing games or ripping DivX, but really it seems that for the vast majority of the home market, the technology has vastly outpaced the need, even the latest-greatest MS OS can't justify the need for this kind of iron.

    Though I guess this means that the next computer I buy will be that much cheaper, since "low end" systems (with slight boosts to hard drive and memory) are now all that I need.

    --
    In Capitalist America, bank robs you!
    1. Re:Wake me when something happens by Namarrgon · · Score: 2
      Suit yourself. Me, I want an 8-way Opteron :-)

      I do software for film visual effects, and when you're dealing with dozens of layers of footage that's 250 MB PER FRAME, you need all the CPU power you can get, trust me. I have customers with 100-CPU render farms, and those farms do not sit idle. There is still an ever-growing need for high-powered machines, even if it's not in your house.

      Every time I hear a comment like this, I think of an article I read in 1980, from a columnist who grumbled that the new-fangled 16 bit CPUs were just too fast - his 8-bit CPU was quite enough to run WordStar and 1-2-3, thank you very much. I wonder if he still thinks the same.

      --
      Why would anyone engrave "Elbereth"?
    2. Re:Wake me when something happens by Decimal · · Score: 2

      even the latest-greatest MS OS can't justify the need for this kind of iron.

      I think you're vastly underestimating Microsoft's talent for bloat.

      --

      Remember "Bring 'em on"? *sigh
    3. Re:Wake me when something happens by ergo98 · · Score: 2

      Speak for yourself, and it should be noted that this exact same argument has played out since the days of the 386. I virtually guarantee you that if you search the forums, you can find dozens of people proclaiming that the new 486 is well and good, but their 386 does more than they ever need, etc. It's a dated, predictable argument.

      I recently upgraded from a P3 850/512MB PC133 to an Athlon XP 1800+ with 512MB of DDR333, and the difference in simple day to day applications is stunning (one of those "You don't know better until you've tried better" type deals), and for applications like Java or Visual Studio.NET it's a requirement.

    4. Re:Wake me when something happens by colmore · · Score: 2

      No... I've been using computers for near 15 years, and for the whole time I've felt like there was more software out there than I could run. (i've never really had an up-to-the-minute system)

      Only recently have I found budget systems to be completely adequate for everything I see myself doing .

      I'm not saying running all of my apps faster wouldn't be *nice,* but it's not the same as saying there are new apps that will only be functional on these faster processors.

      what I'm saying is, like always, I can't afford an upgrade, but unlike say, when my pentium was two years old, I don't feel like I'm missing out on anything.

      --
      In Capitalist America, bank robs you!
    5. Re:Wake me when something happens by Kanasta · · Score: 2

      I was using a Celeron at 450 up until last month.
      I u/g to an AthXP 1700, and I wouldn't say I feel it's even twice as fast generally. Only compiling is noticibly faster.

      Then came an ATA100 HD to replace my old HD as the backup disk. A little faster for things that need lots of HD access, but really, how many apps do that?

      Anyway, my primary SCSI disk from 98 still beats it.

      Then I tried a few games. Maybe I don't have very intensive games, but again, OK it loads a ~little~ faster, 6s instead of 9s. Gameplay unaffected.

      Really different from the old days when I remember the huge difference adding 16MB ram to my P133, or the jump from that to the 450.

    6. Re:Wake me when something happens by ergo98 · · Score: 2

      I can totally appreciate the idea of buying bargain PCs, and the Athlon XP 1800+ system that I bought I bought only once it got to the high value point (the chip can be bought for $189 CDN here, which is quite a sweet point). I recently bought a GeForce 3 Ti200 because it was unbelievably cost effective.

      However, that doesn't man that one should yawn at new PC components coming out: I love every new graphics card, processor, and memory technology -> Maybe I'm not going to buy it today, but in 3 months it'll be bargain basement and I'll be very grateful.

  7. Re:Athlon XP, PR rating schemes (= bad) by colmore · · Score: 2, Interesting

    clock speed != performance

    write that 1000 times

    if AMD has to fudge numbers to sell an equivalent product, that's the fault of the largely ignorant market, not AMD.

    read any of their literature, they're very honest and upfront about what they're doing.

    --
    In Capitalist America, bank robs you!
  8. Re:5x133 = 533? by MisterBlister · · Score: 3, Funny

    This might have been funny if the writeup above (not to mention the article and common sense in general) didn't say that its 133x4. So I have to ask, are you a moron?

  9. You know you need a new computer... by Anonymous Coward · · Score: 4, Funny

    when the clock speed of the latest chipsets is faster than the clock speed of your processor, motherboard, and memory. Combined.

  10. SMP support? by brer_rabbit · · Score: 2

    I didn't see any mention of SMP support in either article for the new chipset. Does the P4 even support SMP? What are the current MB offerings for SMP?

    1. Re:SMP support? by fobbman · · Score: 2

      No SMP on the P4. The Xeon line is the only line that Intel currently produces that has SMP capabilities.

  11. Has to be done by A+nonymous+Coward · · Score: 2

    One or the other has to come out first, may as well be this. Sure it's chicken and egg, but necessary. Saying this won't help total system performance is like saying Watt's improvements on Newcomen's steam engine were no biggy until iron rails came into play. Improvements come in steps, lots of tiny steps, always has, always will.

  12. Re:Where are the i845E based motherboards? by Wesley+Felter · · Score: 2

    Intel should be building ATA-133 and Firewire/IEEE1394 support into their chipsets as well. And the i845E should have support for DDR300.

    So buy an SIS chipset instead.

  13. Lightning fast crashes by Anti-Microsoft+Troll · · Score: 2, Funny

    This should increase the speed at which Windows XP crashes dramatically. I can probably fit 1.5 times as many crashes in during the same period of time as on my old motherboards.

  14. Re:Athlon XP, PR rating schemes (= bad) by Nicodemus · · Score: 2, Informative

    Measuring the performance of a CPU using megahertz is like comparing the speed of 2 vehicles based on horsepower alone. For instance, would you say that a 5500 pound muscle car with 300 horsepower is just immediately faster than a 300 pound motorcycle with only 100 horsepower? When you look at the 1/4 mile numbers, you'll find a nasty surprise. The motorcycle will beat the crap out of the car any day. When comparing CPUs, you need to look at the end results, which in this case are benchmarks. Whether they be synthetic, or my preferred method: FPS. I find it interesting that an Athlon XP 2100+ running at 1.73 gHz can run Wolfenstein .1 frames faster than the p4 at 2.53 gHz. That alone should tell you that you're looking at the wrong number. If you're going to blame anyone, blame intel for creating the p4 the way they did, which resulted in them being able to clock it faster, but without actually making it faster. They're the ones with the nasty PR, if you ask me. AMD is just trying to compensate for the general uninformed masses.

    Nicodemus

  15. 4x133 = 533? by Dr.+Spork · · Score: 2

    That's funny--I thought 4x133=532. A good clue the math is wrong is that multiplying with an even number should not generate an odd number.

  16. Re:RTFA by tshak · · Score: 2

    AMD already seem to be falling behind in the clock speed race quite badly.

    Have you been living in a cave? AMD's chips (for the dollar) have been beating Intel for the last few years. Clock speed has nothing to do with it. See this post (http://slashdot.org/comments.pl?sid=30456&cid=327 3879) for more insight.

    --

    There is no longer anything that can be done with computers that is nontrivial and clearly legal. -- Paul Phillips
  17. What kind of RAM? by Lord+Ender · · Score: 2, Insightful

    Buying RAM is a bit confusing now. Athlons have 200MHz FSB and 266MHz FSB. What kind of DDR should I use with each? There is DDR1600, DDR2100, DDR333, and some other stuff. Now there is this intel chip with 533MHz FSB. Is there an easy rule to remember what number after the 'DDR' coresponds with the number before the 'FSB'?

    It gets so confusing, building your own systems is becoming less appealing.

    --
    A slashdotter who didn't build his own computer is like a Jedi who didn't build his own lightsaber.
    1. Re:What kind of RAM? by Keeper · · Score: 3, Informative

      There are several kinds of FSB's out there...most of them operate at 100 or 133mhz. What's all this business about 200 and 533mhz busses you say? It has to do with "when" the data is being sent.

      Let's look at a clock signal for a second in primative ascii form:
      ___ ___ ___
      .../ \.../ \.../ etc

      An SDR bus sends data once every mhz. The components send a bit of data around each time the signal rises.

      A DDR bus sends data when the clock signal changes. So a bit gets sent when the clock rises, and again when it falls. While the clock may only be 100mhz, you're sending 2x as much data around so the equivilant clock rate is actually 200mhz.

      A QDR bus sends data at the different edges of the clock signal. Notice that the clock signal doesn't instantly flip on and off -- there is a transitional period. So it sends a bit when the signal starts to rise, sends another when it reaches the top, sends a 3rd one when it starts to fall, and sends a 4th one when it reaches the bottom. While the clock may only be 100mhz, it's effective clock rate is really 400mhz.

      So, Intel really just moved from a 100mhz system bus to a 133mhz system bus.

      DDR1600 ~= CAS 2.5 ram running at 200mhz (100mhz * 2)
      DDR2100 ~= CAS 2.5 ram running at 266mhz (133mhz * 2)
      DDR2400 ~= CAS 2 ram running at 266mhz (133mhz * 2)
      DDR2700 ~= CAS 2.5 ram running at 333mhz (166mhz * 2)
      DDR3000 ~= CAS 2 ram running at 333mhz (166mhz * 2)

      CAS latency kind of represents the "ping" time of the ram. The lower the latency the better. The numbers after the "DDR" represent the theoretical bandwidth that can be obtained by the chip.

      I'm not up to date on markings on RDRAM memory modules or what they mean, so I can't really offer any insight into it.

      There isn't a rule for remembering which number goes with what FSB frequency. Most places that sell the stuff will list both bits of information though, so it isn't too big of a deal. I'm sure a mathematical formula could be made, but it's easier just to memorize which is which than a forumula which requires the use of a calculator.

    2. Re:What kind of RAM? by Keeper · · Score: 2

      Correction:

      DDR1600, DDR2100, DDR2400, DDR2700, and DDR3000 should have actually been written as PC1600, PC2100, PC2400, PC2700, and PC3000.

      Additionally, I left out a bit of info I had intended to include (ah, the joys of posting while distracted by work ;)). "DDRxxx" generally refers to the speed the ram is running at. So DDR333 would be running at 333mhz (166mhz * 2), referring to PC2700 or PC3000.

  18. put the damn RAM on the CPU by Easy2RememberNick · · Score: 2, Interesting

    When, do you think, will we see processors with the main memory built in? I mean you may as well stuff it when you get it, it'll make it cheaper because we'll all get the same thing. Or is that just too far fetched an idea? ie. The new 2.5GHz with 4GB RAM right on the CPU. Hunh? Maybe it'll get rid of all this crap surrounding buying or trying to match RAM to...whatever!!!!

    1. Re:put the damn RAM on the CPU by Squalish · · Score: 2, Interesting

      Done. Gamecubes use a unified base of SRAM(what modern proc's use as cache) for the proc AND the vid card. Dimms will not be on the proc chip in the forseeable future purely because of size.

      --
      People in Soviet Russia, however, appear to be afflicted with amusing juxtapositions of the aforementioned situation
  19. Re:Athlon XP, PR rating schemes (= bad) by Courageous · · Score: 2

    Measuring the performance of a CPU using megahertz is like comparing the speed of 2 vehicles based on horsepower alone.

    I think RPM is a better analogy. :)

    C//

  20. Hammer is the next big thing for AMD by nusuth · · Score: 2

    P4 vs. Athlon XP race is irrelevant. AMD need not take the speed crown again, they just need to keep their existing market share until Hammers hit stores. BTW, Athlon XP is still very fast, moreover it is avaliable now unlike benchmarked P4s. If you can't help lusting for even more speed, a dual athlon xp box is quite affordable unlike a dual P4 Xeon box.

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