Author: Vincent Diepeveen
Date: 09:54:12 08/29/03
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On August 28, 2003 at 16:38:37, David Hanley wrote: >On August 27, 2003 at 20:41:19, Steven Edwards wrote: > > >>Don't expect a G5 in a notebook any time soon. Apple's desktop version needs a >>600 W power supply and seven fans. > >Actually, the g5 chip(970) is fairly low power draw. The power supply is 600 >watts mostly to drive perhipherals and 4+GB of RAM. The seven fans are for the >sake of quiet. There's a separate thremal area for drives, for instance, and if >the drives are spun down, that fan cuts out. > >As for chess programs, i expect the first person who makes a bitboard program >that properly utilizes the vector processor will have a real beast on their >hands. > >dave Look how clumsy it handles complex integer instruction execution. The g5 is a joke processor for chess. For floating point it is not so bad though which was its design point. Yet in all those tests it has been in so far, they did very dubious comparisions. Not a single objective comparision has been performed so far. The only good thing about it, is that it is a 64 bits cpu. But even any 32 bits processor of today will be faster for *any* chessprogram than this thing. Note that it is just clocked to 2Ghz also. If it would effectively execute a lot of integer instructions a clock, then 2Ghz is great. However it doesn't. So knowing how poor the G4 was, the g5 is a big step forward, but it is not even close to intel&amd processors, except if you take into account that intel doesn't have a cheap x86-64 processor yet. So yes in some respects it is better than 32 bits processors from intel, because it has more registers and 64 bits. No it is a joke processor compared to the 2Ghz opteron. Opteron is at least 2 times faster. Best regards, Vincent
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