Author: Robert Hyatt
Date: 20:36:58 06/29/03
Go up one level in this thread
On June 29, 2003 at 17:47:29, Vincent Diepeveen wrote: >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! I haven't been "crying" for anything at all. And, in fact, I've been running on a 64 bit processor since 1980 when Cray Blitz was "born". Better check your details. BTW I've _also_ been running on alphas for quite a while. I just mothballed my 21164 box here in fact. When I bought my dual xeon there were no dual opterons around... I haven't personally seen one yet. > >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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