Author: Dann Corbit
Date: 14:31:54 02/11/04
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On February 11, 2004 at 16:34:05, Roy Eassa wrote: >My PC is a 1.2 GHz Athlon. I get a ShredderMark of 556 / 128k nps when Shredder >8 is set to 190k hash. > >I just bought a cheap very Dell system that usess a 2.8 GHz Pentium IV. I >figured it would be less than twice as fast. Instead, I get a ShredderMark of >2227 / 297k nps (also using 190k hash)! > >First, why is the ShredderMark 4x as high when the integer performance of the >CPU should be less than 2x as high? Because the sequence of instructions for Shredder mark performs for times faster on that chip. Maybe it all fits in the cache. >Second, why isn't the ShredderMark's improvement proportional to that of the >nps? Because different instructions are used to play chess than to perform a shreddermark test.
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