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Subject: Re: windows for AMD64 - MMX not 64-bit threadsafe

Author: Eugene Nalimov

Date: 08:37:13 08/28/03

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On August 28, 2003 at 00:43:34, Jay Urbanski wrote:

>On August 26, 2003 at 20:02:19, Eugene Nalimov wrote:
>
>>On August 26, 2003 at 19:01:30, Dan Andersson wrote:
>>
>>> Uck! A real bummer since the AMD x87 is a stellar performer.
>>>
>>>MvH Dan Andersson
>>
>>I just looked at the Spec2k, and I did not notice AMD x87 is stellar performer:
>>
>>http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030728-02428.html
>>http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030630-02310.html
>>http://www.spec.org/cpu2000/results/res2003q2/cpu2000-20030505-02137.html
>>
>>Thanks,
>>Eugene
>
>Right.  Now calculate the price per SPECFP for each of those processors.
>Opteron has *stellar* FP price / performance.

That's probably true for the single CPU, but if you add system cost (i.e.
motherboard/memory/peripherals) situation changes. Opteron can still win, but I
am not sure.

But if we started talking about "price/performance" why not look at the ordinary
Xeon or Pentium4? They have performance comparable to Opteron (within ~10%), and
very competive price...

Thanks,
Eugene



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