Author: Eugene Nalimov
Date: 13:05:32 08/29/03
Go up one level in this thread
Ok, so if we are talking about what is available *right now*, not about some future products: * Itanium2 has absoulute best FP performance, as well as absolut best SpecFP rate. * Xeon has very competive price / FP performance for the uniprocessor system. I am not sure if Xeon or Opteron is better this week, because all depends on exact prices and discounts. * Opteron and Itanium2 probably have comparable price / FP performance for the multi-CPU systems (SPEC FP rate for the single-CPU Itanium2 is the same as for the dual-CPU Opteron, so single-CPU Itanium2 system can be 2x more expensive than dual Opteron system). For integer performance story is different, but that thread was about FP performance, right? :-) Thanks, Eugene On August 29, 2003 at 14:41:37, Jay Urbanski wrote: >On August 28, 2003 at 11:37:13, Eugene Nalimov wrote: > >>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. > >Opteron still does win, by a wide margin. The only way IPF gets close is if you >use the new 1.4Ghz 1.5MB cache chip Intel just released as a response to >Opteron. The price of a p690 is so high, don't bother. > >>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... >> > >For SMP server systems: > >http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030714-02406.html >http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030728-02426.html > >Not even close. > >If you compare Opteron versus a uni-processor desktop, it is back to >competitive: > >http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030728-02428.html >http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030616-02266.html > >But I would argue that's not a fair comparison until AMD releases their Athlon64 >product.
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