Author: Robert Hyatt
Date: 08:06:33 11/26/02
Go up one level in this thread
On November 26, 2002 at 08:28:26, Brian Richardson wrote: >On November 26, 2002 at 02:28:19, Jorge Pichard wrote: > >>On November 25, 2002 at 17:37:29, Brian Richardson wrote: >> >>>On November 25, 2002 at 16:29:39, Jorge Pichard wrote: >>> >>>>On November 25, 2002 at 16:00:56, Brian Richardson wrote: >>>> >>>>>On November 25, 2002 at 14:33:16, Jorge Pichard wrote: >>>>> >>>>>>On November 25, 2002 at 10:19:13, Ricardo Gibert wrote: >>>>>> >>>>>>>On November 25, 2002 at 02:45:35, Jorge Pichard wrote: >>>>>>> >>>>>>>>On November 24, 2002 at 23:10:44, Ricardo Gibert wrote: >>>>>>>> >>>>>>>>>On November 24, 2002 at 15:06:55, Jorge Pichard wrote: >>>>>>>>> >>>>>>>>>>On November 24, 2002 at 14:25:47, Joachim Rang wrote: >>>>>>>>>> >>>>>>>>>>>On November 24, 2002 at 14:19:06, Jorge Pichard wrote: >>>>>>>>>>> >>>>>>>>>>>>On November 24, 2002 at 13:15:09, Bob Durrett wrote: >>>>>>>>>>>> >>>>>>>>>>>>>On November 24, 2002 at 11:49:07, Jorge Pichard wrote: >>>>>>>>>>>>> >>>>>>>>>>>>>>http://www.specbench.org/osg/cpu2000/results/res2002q3/cpu2000-20020909-01635.html >>>>>>>>>>>>> >>>>>>>>>>>>>Didn't someone say RDRAM was bad for chess? >>>>>>>>>>>>> >>>>>>>>>>>>>Bob D. >>>>>>>>>>>> >>>>>>>>>>>>But is still faster than any single processor available with any other memory. >>>>>>>>>>>> >>>>>>>>>>>>Pichard. >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>>Athlon XP 2600+ is 17% faster: >>>>>>>>>>>http://www.specbench.org/osg/cpu2000/results/res2002q3/cpu2000-20020812-01551.html >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>Really, I must be blind. >>>>>>>>>> >>>>>>>>>>Pichard. >>>>>>>>> >>>>>>>>> >>>>>>>>>And faster still is the Athlon XP 2800+: >>>>>>>>> >>>>>>>>>http://www.spec.org/osg/cpu2000/results/res2002q4/cpu2000-20020923-01691.html >>>>>>>> >>>>>>>> >>>>>>>>You are still missing the point here: >>>>>>>> >>>>>>>>Did you check how many CPU(s)were enabled: = 1 for this test, I did NOT see >>>>>>>>CPU(s) enabled: = 2 >>>>>>>> >>>>>>>>Pichard. >>>>>>> >>>>>>> >>>>>>>Both of guys provide examples with 1 CPU enabled. When I do likewise, I'm >>>>>>>somehow missing the point. Okey-dokey, I think I can live with that. >>>>>> >>>>>> >>>>>>Sorry, I meant to say all of you missed the point, but at the same time when >>>>>>only 1 CPU is enabled, the Intel can not compete with any Athlon XP 2600+ or >>>>>>higher. Now if AMD release a Dual 2400 MP, it will beat the @#$+ out of Intel >>>>>>higher Xeon. >>>>>> >>>>>>Pichard. >>>>> >>>>>Actually, just the opposite has been shown for 32bit AMD >>>>>(e.g., slower than dual Xeon). >>>>> >>>>>Brian >>>> >>>>Probably for the Dual 2200+ but NOT for the upcoming Dual 2400+ MP >>>> >>>>http://www.anandtech.com/IT/showdoc.html?i=1747&p=10 >>>> >>>>And >>>> >>>>http://www.anandtech.com/IT/showdoc.html?i=1747&p=12 >>>> >>>> >>>>Pichard. >>> >>>Multiprocessor performance is highly application dependent. >>>In this case, AMD does much worse with chess applications >>>(regardless of clock speed), than Intel. >>> >>>Thus, while the benchmarks cited above are meaningful, they >>>only apply to the workloads being tested, which have little to do with >>>computer chess. >> >>Just wait until AMD release the Dual 2600+ MP, and install Deep Fritz on one of >>this baby and compare it against a Dual Xeon 2.8 Ghz. >> >>Pichard. > >I will always bow to the data, but based on results so far, dual AMDs have >a scalability efficiency of about only 1.4x (where 2x would be ideal). >Dual Intels are at about 1.8-1.9x, at least for good SMP code (like Crafty's). >This more than makes up for individual AMD CPUs being somewhat faster than >Intel. I would expect any 32bit AMD to be about the same, due to memory >bottlenecks. This is not an issue for more general workloads. >The 32-64x Hammers should do much better. >Brian If you read the "underground analysis" it would seem that this is going to get worse. The new AMDs are supposed to have a built-in memory controller on the processor chip. Unfortunately, it is now known that it is an inferior controller compared to late Intel offerings. The question is, how is AMD going to respond? The answer is unknown, but if they don't, they will get their clock cleaned (again).
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