[Beowulf] Q: AMD Opteron (Barcelona) 2356 vs Intel Xeon 5460
carsten.aulbert at aei.mpg.de
Mon Sep 8 11:16:31 PDT 2008
Tim Chipman wrote:
> Does anyone have any 'real world' experience with 'both' of these CPUs, in terms of relative performance for 'whatever work you do' ?
> I realize the xeon is a faster mhz part (3.16ghz xeon vs 2.3ghz opteron) so I'm more concerned with "relative performance per mhz"
> I'm involved with a cluster project, and we have 2 options from our vendor,
> - 25 compute nodes, dual-quadcore intel 5460, or
> - 32 compute nodes, dual-quadcore amd 2356
>>From what I've been able to glean (Spec.org / SpecCPU 2006),
> - the intel chips have better integer performance
> - the amd chips have better FPU performance
> so the likely anticipated real-world performance result .. will depend on how a given application blends / balances things.
We have "only" the Quad-Xeon boxes with E5435 and these are quite fast,
indeed it seems that FFTW seems to run faster on Xeons but I have not
made any benchmarks for the past ~ 9 months, so I don't know about the
I think you need to come up with a real world scenario of what will be
run on the cluster and maybe compile a little benchmark yourself ans aks
the vendor to run both (or get hands on on both boxes. I think that's
the only "fair" comparison that's possible.
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