Author: Vincent Diepeveen
Date: 14:47:29 06/29/03
Go up one level in this thread
On June 28, 2003 at 21:35:42, Jeremiah Penery wrote: >On June 28, 2003 at 19:12:16, Ricardo Gibert wrote: > >>Elsewhere in this thread, someone asserted that for chess, the Opteron "not much >>faster" Mhz per Mhz as an Athlon XP. I thought this didn't seem right, but >>looking at the crafty sections of SPECint2000 at >>http://www.aceshardware.com/SPECmine/ makes it look like a fair (?) assessment. > >Did you look at the same numbers as I did? 1800MHz Opteron performs about where >you'd expect to see a 2100MHz Athlon for Crafty, according to SPEC numbers. So, >Opteron is performing some 16% better per MHz than the Athlon here. Then you're taking a very bad look at specint. Crafty 64 bits using the GCC compiler (which for sure ain't fastest possible code yet) : 1.8Ghz opteron 64 bits : 1562 score (more is better) 2.2Ghz K7 32 bits : 1324 score 3.06Ghz Xeon 32 bits : 1192 score So i see it perform like a 1562/1324 * 2.2 = 2.6Ghz K7 (assuming K7 scales well, which it doesn't do as well as the opteron) Or when compared to a P4-Xeon: 1562/1192 * 3.06 = 4.0Ghz P4-Xeon (and that one will not scale well for sure, so it will be more like a 4.2Ghz P4-Xeon which equals a single 1.8Ghz opteron Hyatt has been crying for a 64 bits processor for 10 years now. Why hasn't he bought a dual opteron yet? It's not more expensive than a dual Xeon! And the coming years the P4-Xeon won't be clocked to 4Ghz soon... ...not in 0.09 technology either. References: opteron 1.8Ghz: http://www.specbench.org/osg/cpu2000/results/res2003q2/cpu2000-20030421-02093.html XP k7 2.2Ghz: http://www.specbench.org/osg/cpu2000/results/res2003q2/cpu2000-20030505-02154.html Xeon P4 3.06Ghz: (note that this one is considerably faster than P4 with HT) http://www.specbench.org/osg/cpu2000/results/res2003q2/cpu2000-20030407-02060.html
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