[Beowulf] FPU performance of Intel CPUs

Tiago Marques a28427 at ua.pt
Sun Apr 5 15:20:29 PDT 2009

On Sun, Apr 5, 2009 at 9:48 PM, Mark Hahn <hahn at mcmaster.ca> wrote:

> Definitely, it's a non-cluster question, but may be
>> I'll get an answer: is there any remarkable difference
>> in FPU performance between Extreme and non-Extreme
>> Intel CPUs, e.g. QX9650 and Q9650?
> of course not - the chips are the same inside, so deliver
> exactly the performance you expect from their operating clock.
> same cache, same clock, same fsb, so same performance...
> as far as I can seem the only difference is that the X
> is an older stepping, has a higher TDP and lower thermal spec.
And unlocked FSB multipliers.
Best regards

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