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Subject: Re: Benchmarking Crafty: G5 vs Xeon

Author: Tord Romstad

Date: 05:39:24 09/19/03

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On September 19, 2003 at 08:25:00, Steven Edwards wrote:

>The leader position changes from time to time.  Back in late 1999, the Apple
>PowerMac G4 was the only consumer machine to be on the US State Department
>export blacklist because the box could do better than 1 GFlop/sec sustained.
>Then there were the years where Motorola fell behind by quite a bit.  Now it
>looks like things are even again, but now with IBM putting its resources into
>PPC fab tech, I think that the PPC970 and its relatives will once again assume
>the front position.

Personally I am not so optimistic.  It seems to me that the 970 is rather
unimpressive for integer operations, and I'm afraid non-bitboard chess
engines (like mine) will perform very badly.

I have even seen several test results which indicate that the G5 can
even be _slower_ than a G4 in certain cases.  In particular, a discussion
on the Macintosh Common Lisp mailing list the last few days has made me
rather worried.  It started with this e-mail:

http://article.gmane.org/gmane.lisp.mcl.general/1404

I really hope I will be proven wrong, but so far I think the G5 looks
very bad.

Tord



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