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Subject: Re: Some benchmarks...

Author: Tom Kerrigan

Date: 11:50:27 04/27/03

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On April 26, 2003 at 22:25:47, Aaron Gordon wrote:

>On April 26, 2003 at 21:11:59, Tom Kerrigan wrote:
>
>>I checked Aaron's story with his contact at AMD. The guy said that AMD didn't
>>allow performance testing with the memory _overclocked_, but it certainly isn't
>>underclocked. This makes perfect sense to me. (If you allow overclocking memory,
>>why wouldn't you also overclock the processor? Then all your benchmarks are
>>worthless.)
>>
>>So SPEC is comparing non-overclocked Intel to non-overclocked AMD and Intel
>>wins.
>>
>>-Tom
>
>When I ran the tests I recalled seeing some information where the P4 was running
>CAS2 and the like. The settings I was told to use put me at CAS 2.5.

It sounds like you don't really know what configs Intel uses for SPEC testing.

>How would this be 'fair'? Same thing happens on some review pages, but to a much
>larger degree. As I have proven in the past tomshardware has actually run the
>memory lower than the bus on the athlons tested, put the AGP to 1x, etc.

I think we can all agree that review pages may be biased. My point was that SPEC
is not biased, because the vendors are submitting their own scores.

>slow. I went and 'rented' one myself. I compared a few clock speeds, I'll post
>what I have so far but the most for now will be just the max both systems could
>do.
>GCC (Linux kernel compile times)
>XP-2.50GHz: 119.5 seconds
>P4-3.32GHz: 126.87 seconds
>Gzip:
>P4-3.32GHz: 25.340 seconds
>XP-2.50GHz: 26.060 seconds

etc. Your gcc test shows a 41% improvement in IPC for the Athlon, vs. the 9%
improvement in official SPEC submissions. You get a 29% improvement in Gzip vs.
a 22% improvement. How do you explain this? You're obviously a big AMD fan, why
should I think your results are somehow more accurate than results from the
companies themselves?

-Tom



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