Author: Matt Taylor
Date: 13:42:37 12/08/02
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On December 08, 2002 at 14:07:50, Christopher A. Morgan wrote: >Aaron, > >If I'm reading yours and Steffan's test results correctly, >Athlon XP 2520 is 1.578 million nodes per second, and P4 3.03 >with HT enabled is 1.161 million nodes per second. Your test >on Crafty 18.15 and Steffan’s test on Crafty 18.11. > >Although the different versions of Crafty could account for some >difference in speed (which way, I have no idea), the XP 2520 is some >36% faster than the 3.03 with HT. Bob’s test indicated with two >CPUs that with HT enabled the HT versions were some 33% faster >than without HT enabled. He was comparing P4s at ~ 2850 GHz or so. > >I see your other results that show that the XP 2520 is substantially >faster than the P4 at 3.25 GHz. > >This means that the XP 2520 is still the speed demon by a wide margin >compared to the P4, with or without HT enabled. Is this correct? Thanks! > > > > > > >On December 08, 2002 at 06:05:48, Aaron Gordon wrote: > >>I only have results from version 18.11 but here are a few... >> >>AthlonXP 2520MHz >>Total nodes: 104161030 >>Raw nodes per second: 1578197 >>Total elapsed time: 66 >>SMP time-to-ply measurement: 9.696970 >> >>Pentium 4 3255MHz without HT >>Total nodes: 104161030 >>Raw nodes per second: 1335397 >>Total elapsed time: 78 >>SMP time-to-ply measurement: 8.205128 >> >>AthlonXP 1860MHz >>Total nodes: 104161030 >>Raw nodes per second: 1197253 >>Total elapsed time: 87 >>SMP time-to-ply measurement: 7.356322 >> >>Pentium 4 2765MHz >>Total nodes: 104161030 >>Raw nodes per second: 1120011 >>Total elapsed time: 93 >>SMP time-to-ply measurement: 6.881720 >> >>http://speedycpu.dyndns.org/crafty/craftybench4.jpg - Crafty v18.11 benchmark >>list. AthlonXP 2.52 GHz, not performance rating 2520. The AthlonXP 2800 is only clocked at 2.25 GHz. The 1860 MHz AthlonXP is approximately AthlonXP 2200. Bus speed is important to keep in mind, too, and none of these chips are running at a standard (100/133/166 MHz) bus speed. It would be more valuable to compare the P4 3 GHz with and without HT to the AthlonXP 2800 on their default bus speeds. I believe this is what Dr. Hyatt was advocating, too. Nobody has done that, though. -Matt
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