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Politics : Formerly About Advanced Micro Devices
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To: Ali Chen who wrote (65961)7/19/1999 1:24:00 AM
From: fyo  Read Replies (4) of 1576295
 
Ali - Re: Everyone knows that it is performing exactly the same way as overclocked P-III, plus-minus 2-3%. Elmer would probably disagree again, and lose again :)

If we look to the mobile processors for guidance, I believe the following is the benefit of 256kB on-die compared to 512kB half-speed:

7% SPECint
15% SPECfp
5% Winstone99
0% MultimediaMark
1% 3DMark99 CPU
(source: Intel.com)

Note that these are, of course, without the benefit of SSE (only the last two use SSE). I have been told (and seen benchmarks that tend to indicate) that SSE and 3DNow! are significantly more cache-dependent than normal operations (presumably because so many more numbers are crunched).

Note also the massive increase in SPECfp, which when coupled with a 133MHz FSB and Rambus DRDRAM could well give the CuMine almost exactly the same SPECfp as the Athlon.

--fyodor
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