Author: Vincent Diepeveen
Date: 15:36:59 05/05/01
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On May 05, 2001 at 17:51:49, ERIQ wrote: >. dual G4 tops at 533Mhz as far as i can see on homepage. G4 only runs single cpu 733Mhz. So whatever they designed. *nothing from 533Mhz* is going to beat for a normal chessprogram (bitboard programs not included in that as they profit from the jump from 32 to 64 bits) a machine which is running at 1Ghz. Note that P3 does 3 instructions a clock at maximum versus G4 can do 4. However the caches of the G4 aren't too impressive, though very good compared to the 400Mhz sun and it's branch misprediction penalty probably very bad. So most optimistic scenario it's 25% faster as a dual coppermine at 533Mhz. However lucky no coppermine runs that slow. They run 1Ghz easily nowadays. Note for FPU g4 might be pretty fast for certain applications which can use complex instructions from the velocity engine. This is of no use for chessprograms unless you want to program from now on a year or 2 fulltime in G4 assembly, and i bet by that time no one remembers the velocity engine anymore and sure a 533 dual in 2003 is not going to beat a 3Ghz 0.10 micron dual K8 or whatever. More interesting is the foster cpu which runs dual at 1.7Ghz, though i expect it to be way slower as a dual 1.33Ghz AMD k7-thunderbird. Best regards, Vincent
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