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Subject: Re: Opteron vs. XP

Author: Sune Fischer

Date: 07:45:25 06/29/03

Go up one level in this thread


On June 29, 2003 at 08:59:15, Jeremiah Penery wrote:

>On June 29, 2003 at 02:14:10, Sune Fischer wrote:
>
>>On June 28, 2003 at 21:35:42, Jeremiah Penery wrote:
>>
>>>On June 28, 2003 at 19:12:16, Ricardo Gibert wrote:
>>>
>>>>Elsewhere in this thread, someone asserted that for chess, the Opteron "not much
>>>>faster" Mhz per Mhz as an Athlon XP. I thought this didn't seem right, but
>>>>looking at the crafty sections of SPECint2000 at
>>>>http://www.aceshardware.com/SPECmine/ makes it look like a fair (?) assessment.
>>>
>>>Did you look at the same numbers as I did?  1800MHz Opteron performs about where
>>>you'd expect to see a 2100MHz Athlon for Crafty, according to SPEC numbers.  So,
>>>Opteron is performing some 16% better per MHz than the Athlon here.
>>
>>This is not another one of those "gee let's test the performance of the bran new
>>64 bit chip using old non-optimized 32 bit applications" tests, is it?
>
>The SPEC results for the Opteron were compiled with ICC 7.0 and MSVC .NET - both
>32-bit compilers.  What's wrong with that kind of test?  It shows that Opteron
>performs better than Athlon on the same 'old non-optimized 32 bit applications'.
> So we can expect even better when we have 'new optimized 64 bit applications'.

Right, but why is this interesting?
Honestly, to compile Crafty with a 32-bit compiler for a 64 bit chip smells like
incompetence to me.

Finally the 32-bit hell is over, for good!! :)

-S.



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