Author: Guido Schimmels
Date: 06:27:58 07/13/98
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On July 10, 1998 at 15:22:29, Bo Persson wrote: >AMD and Intel differs some in the instruction timing. The AMD is faster on some >simple instructions, possibly used in chess programs. > >There are also differences between the memory footprints of different chess >programs which affect how well they fit in the different L1/L2 cache sizes of >the processors. Hardly a simple comparison... :-) I guess cache sizes are most important: Nimzo, Fritz: 'kernel' fits in 32kB L1 cache of Pentium MMX / Pentium II Rebel : 'kernel' fits in 64kB L1 cache of K6 Crafty: Lots of highly referenced data ( >1MB ?) , thus L2 cache very important Another point of assembler programs like Nimzo and Fritz is, they are hand tuned concerning branch prediction and stuff, therefore K6's extra branch prediction logic is useless for them. Makes sense ? - Guido -
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