[Beowulf] FPU performance of Intel CPUs

Mark Hahn hahn at mcmaster.ca
Sun Apr 5 16:48:33 EDT 2009


> 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.
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