Author: Robert Hyatt
Date: 05:48:39 04/20/01
Go up one level in this thread
On April 20, 2001 at 08:41:41, Chris Carson wrote: >Uri, > >ref: http://www.specbench.org/osg/cpu2000/results/cint2000.html >Specint2000: > Crafty > Peak Peak Ratio >P3 1.13GHZ 464 589 >P4 1.5GHZ 536 497 >AMD 1.33GHZ 539 759 > >For Crafty the AMD was best then the P3 followed by the P4. However >for other programs the P4 was superior (thus the Peak overall improvement). > >However, the P4 was better for the TSCP chess programs: > >Ref: http://ucsu.colorado.edu/~kerrigat/bench/ > TSCP > MIPS Benchmark >Pentium 4/1700 1891 >Pentium 4/1500 1749 >Athlon/1200 1338 >Pentium III/1000 1168 > >As I read this data for the two programs, it depends on the chess >program and other factors (compiler options, design, ...). > >How do you read this? > >Any other thoughts/reasons for the descrepancy? > >Best Regards, >Chris Carson The P4 has a long pipe. And then there is the RDRAM problem. Both hurt Crafty because the eval has so many if then else type comparisons. I've seen the same sort of performance differences in every case it has been tried.
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