Final Words

The only goal of testing three different Intel 3.2 processors on the same reference motherboard was to establish benchmark results for future motherboard testing. However, it is hard not to compare the CPU performance differences in these tests. What perhaps stands out the most is that for all the negative press Prescott has received at launch, it is really a decent performer that is very close to Northwood, at least at the 3.2GHz speed. As Anand found in Intel's Pentium 4 E: Prescott Arrives with Luggage, Prescott scales faster than Northwood as speed increases. At 3.2GHz, performance is closer than we first thought it would be, and Prescott is certainly ahead of Northwood by the time you reach 3.7 to 3.8GHz.

Looking at individual performance categories from our standard benchmarks, it is easier to understand why Intel introduced another EE chip in the 3.4 speed. The one area where Prescott is poorest is gaming performance, an area already dominated by the Athlon 64. Prescott is slower compared to Northwood in this area, but the real difference is 0% to 5% in most cases. Northwood is not a great game chip either compared to A64, so the 3.2EE and 3.4EE fill that void. Unfortunately, the cost of bringing Pentium 4 gaming performance to Athlon 64 levels is very high, with the EE chips selling for premium prices.

For our standard "real application" benchmarks, Multimedia Content Creation Winstone and Office Winstone, Prescott and Northwood performed virtually the same in these baseline tests. You will not notice the difference between these similarly-priced chips. P4EE performs best in these benchmarks, as expected, but at 3 times the price, the P4EE is not really in the same league with Prescott and Northwood.

The areas that most surprised us were Media Encoding and Workstation Performance. We expected P4EE to lead in these benchmarks, but instead, Prescott was the top performer. Intel tells us that Divx 5.1.1 provides support for new SSE3 instructions, and at least in our configuration with an XMpeg 5 front end, Prescott leads in Media Encoding. Other Media Encoding benchmarks that use older codecs have been showing Prescott about the same as Northwood in encoding tests. Workstation Performance was generally dominated by Prescott, so those applications that depend on the types of operations tested in SPECviewperf will perform best with the Prescott 3.2E. The SPECviewperf 7.1.1 benchmarks were repeated on a VIA PT880 motherboard with all three 3.2 processors, and Prescott again dominated these benches, providing the top performance in all the 7.1.1 suite including UGS.

Prescott and EE compatibility will be a part of all future testing of Pentium 4 motherboards. With the testing that went into this comparison, you should have a better idea of how the 3 flavors of Pentium 4 compare at the same speed on the same reference motherboard. Prescott is not a very good gaming chip at 3.2 GHz, but it is closer to Northwood than many expected. If you can afford the price tag, P4EE is still the best choice for gaming among Intel processors. Northwood and Prescott are virtually interchangeable as measured in Content Creation and General Usage performance. For Media Encoding and Workstation Performance, Prescott at 3.2GHz appears to have an edge over both Northwood and the much more expensive 3.2EE.

Workstation Performance
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  • mindless1 - Sunday, April 18, 2004 - link

    WOnder of all wonders... we have evolved to supporting INDUSTRY STANDARD image file formats yet the review uses proprietary pics. I (and I suspect others) are "a rock" on this point, won't run flash. Using such pics in an article simply causes readers to go elsewhere, which in an overall elite-snob sort of way may not matter but in the grand scheme of things, losing readers beside of abandonment of industry standards is just a dumb idea.
  • Aervires - Saturday, February 14, 2004 - link

    Are you sure you bought both processors retail?
    The P4EE is $955 AND THE A64FX-51 is $745
    The total cost a the P4EE will run you more however both are a waste of money. Also the when socket 939 comes BEWARE.
  • Aervires - Saturday, February 14, 2004 - link

  • Pumpkinierre - Saturday, February 14, 2004 - link

    #9 Trog, if it was only pipeline related then the p4EE comanche4 results should have the same as the northwood. But clearly it is better because of the extra cache 2Mb L3. The Prescott has 1Mb L2 and 16K L1 so it should have results in between the 3.2EE and 3.2c (if not close to the P4EE) if it had the same core as the n'wood and cache latency. In fact it is markedly down in commanche4 cf. with N'wood. Given that other games benchmarks/demos and tests have the two processors within 10%, I dont think this failure is solely as a result of the 31 stage pipeline and branch predictor etc. (remember intel also improved its efficiency with a lot of tweaks). The main problem is the cache latency has slowed down and this obviously has a marked effect on comanche4 as it would in real time gaming where memory subsystem latency is paramount. See here:

    http://www.xbitlabs.com/articles/cpu/display/presc...

    Quote:
    "Yes, unfortunately, we have to state that not only the size of Prescott’s cache-memory has grown bigger, but also its latency. And the latency grew up a lot, I should say: for L1 cache the latency doubled! As a result, Intel will no longer be able to boast the extremely low latency of its L1 data cache. From the temporal point of view, the latency of Pentium 4’s L1 data cache got close to that of Athlon 64 L1 cache, though the latter is four times larger. However, the increase in the L1 cache latency is another forced measure, so that the new Pentium 4 processors on Prescott core could go beyond 4GHz core frequency.

    Similar changes were made to the L2 cache, too. In terms of L2 cache latency, the new Prescott processor yields to Northwood, as well as to the competing CPUs from AMD Athlon 64 family."

    That, plus poor fpu plus heat- not a good gaming cpu scenario. Intel have blundered big time and they must be rushing to get something out soon to relegate this doozer to the dustbin of history.

  • truApostle - Friday, February 13, 2004 - link

    The P4 extreme is a total waste of money, IMHO. To spend $550 more dollars only to gain 3-5 fps in some of the new(er)games is NOT worth it. OF course if you are still playing Quake III then you will realize some smokin fast frames in which case it's all overkill anywho. In every bench from content creation to encoding to gaming the P4EE was marginally ahead, at best. I guess if your a Rockefeller or a Rothschild then it's okay to build a system based upon that proc.

    I think the best deal out right now is a 64 3400. Benchmarks are really close to FX-51 and are matched too (content creation, encoding) or better (in gaming benchs) than most Pentium archrivals. Just my humble opinion.

    Either way isnt it a great time to be human, with all this technology to play with.

    truApostle

    -when you aim for perfection, you find that it's a moving target.

  • sipc660 - Friday, February 13, 2004 - link

    we seem to go down the same road as with the previous article.

    #1 was right you should overclock both 3.2C and 3.2E to show the overclocked performance delta with the measured temperature.

    that should give people who are interested in buying either a better comparison since the chips are going to be the same price at launch

    what you also should drain out of intel is wether or not it has built in 64 bit circuitry. and can it be unlocked through bios at a later stage.????

    right now at the moment it seems 3.2C is a clear winner regardless of the high end workstation performance.

    overall i would buy barton before i'd buy any of the intel chips. i don't beleive anyone here would buy any of these chips till they seriously come down in price.

    just keep it cool (hehehehe)....


    go amd

    P.S: cramitpal is a passionate joker, if no one can c that than you are blind. personally i'd give him a nice friendly hug if i met him on the street.

    LOL
  • Superbike - Friday, February 13, 2004 - link

    I think I'll pick up a Prescott I need a computer/space heater.
  • edub82 - Friday, February 13, 2004 - link

    Well this article clinches it for me...
    The 3.2EE must be mine, the increased performance over that pathetic 3.2C is well worth the 600 extra dollars I'm going to have to spend.
  • kmmatney - Thursday, February 12, 2004 - link

    Yep...

    Athlon 3400+ $270
    2x512Mb PC3200, Corsair: $155
    MSI KT8 NEO $97

    Total Price $522.

    That's the system we just ordered at work. We do a lot of image processing and image compression, and fpu intensive image manipulations and the Athlon is faster than a P4 - at least with our particular applications.
  • vedin - Thursday, February 12, 2004 - link

    That's true johnsonx but..

    Athlon 3400+ $404
    2x512Mb PC3200, Corsair: $155
    MSI KT8 NEO $97

    Total Price 656.

    And it's like, what? .5% slower than the Athlon FX-51?

    I see your point about the FX though, as do most here. It's kinda useless with a much cheaper AMD option right next to it performance-wise. But either way, the system I just described makes BOTH systems look silly for buying, unless you just like spending money.

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