CPU Bound Gaming Performance

While we always try to run our gaming benchmarks in CPU reviews as a balance between being CPU and GPU bound, there is some merit to using CPU bound gaming scenarios as a true measure of the gaming power of a CPU. 

The previous pages of gaming benchmarks were run at 1600 x 1200, which struck a good balance between being CPU and GPU bound on our CrossFire setup but here we’re looking at exactly how good of a gaming CPU the Core 2 Duo is.  By running these tests at 640 x 480 with the same CrossFire setup as before we’re ensuring that the performance bottlenecks in these titles shift as far as possible from the GPU and onto the CPU. 

These tests aren’t designed to tell you how fast these CPUs are at running these games, but rather how quickly they can run through the physics and AI code when not waiting on the graphics card at all. 

We chose to look at two CPUs: the Core 2 Extreme X6800 and the Athlon 64 FX-62, to get an idea of how strong each architecture was at pure physics/AI processing in games.  We also omitted any games whose performance didn’t change by dropping the resolution from 1600 x 1200 to 640 x 480 (meaning that those games were already predominantly CPU limited in our previous tests). 

 CPU Quake 4 HL2 Ep 1 F.E.A.R.  BF2
AMD Athlon 64 FX-62 156.7 170.0 164.0 108.7
Intel Core 2 Extreme X6800 192.5 263.5 236.0 142.3
Advantage (Intel) 22.8% 55.0% 43.9% 30.9%

 

In terms of sheer ability to process physics and AI as well as feed a hungry graphics subsystem, Intel's Core 2 Extreme X6800 is anywhere between 22 and 55% faster than AMD's Athlon 64 FX-62. 

While this doesn't mean much for real world gaming, it does cement the fact that Intel's Core 2 processor is significantly faster at the type of code current 3D games will throw at it.  The very same benchmarks that Intel used to complain about favoring AMD, now favor Intel just as much; oh how times have changed.

Gaming Performance using Oblivion Overclocking
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  • Gary Key - Friday, July 14, 2006 - link

    The first nF4 Intel Edition boards will be available the week of 7/20. The nForce 500 boards for Intel will not be available until early August. We are now under NDA for the nForce 500 until NVIDIA makes their release announcement. However, there are a couple of nForce 500 boards that look very promising at this time. Do not expect high FSB overclocking results until NVIDIA's next chipset but overall performance is very good at this time.
  • mobutu - Friday, July 14, 2006 - link

    Thank you very much for the info you shared.
    Still, one more question: what do you mean "nVidia next chipset"? Like nF6 or smtg? Because if so it means probably Q4 2006 or Q1 2007 ...
  • Gary Key - Friday, July 14, 2006 - link

    The one that will come out this winter that we cannot discuss except for the fact that it will be a single chip and dual x16 capable. :) Of course, no real mention of it so far but ATI has a really nice Intel chipset due in late August to early September followed up by a refresh in the winter also.
  • mobutu - Friday, July 14, 2006 - link

    Oh, I got it. Thank you very much, much appreciated.
    Looking forward to see Anandtech review of Conroe motherboards.
  • Visual - Friday, July 14, 2006 - link

    you really need to include scores for 4ghz conroes, and maybe some 3.2ghz x2s(though this isnt really needed) and your review will be the most perfectest one evar!
  • JarredWalton - Friday, July 14, 2006 - link

    We generally reserve overclocking scores for articles specifically looking at that aspect. It's unfair to include OC'ed Core 2 without OC'ed X2, FX, etc. I hope to get a Core 2 in the near future to run some specific OC benchmarks comparing a lower end (E6300 and/or E6600) Core 2 with X2 3800+ (hopefully EE, but we'll see).
  • junior1 - Saturday, July 15, 2006 - link


    Jarred that would be great to see. The E6300 and X2 3800+ seem close, but the final AMD pricing and the overclocking potential of each could really make either the clear winner for performance per dollar in the midrange segment.

    Is the die size smaller on E6300 and E6400, or is it a full die with half the cache disabled? Any chance the smaller cache means better OC potential?

    It would be great to see results with several chipsets.
  • Warder45 - Friday, July 14, 2006 - link

    awww. At least give us a taste, maybe 2 or 3 of the most CPU intensive tests run at 4ghz.
  • Gary Key - Friday, July 14, 2006 - link

    quote:

    awww. At least give us a taste, maybe 2 or 3 of the most CPU intensive tests run at 4ghz.
    Just wait a few days.... :)
  • mendocinosummit - Friday, July 14, 2006 - link

    Ya, that is what I was hoping for. I want to see a dual core (that has some balls, unlike the preslers) run at 4ghz and do some benchmarks

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