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Subject: Re: P4 Vs Athlon 64 bits

Author: Robert Hyatt

Date: 09:00:27 08/15/05

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On August 15, 2005 at 11:47:11, Volker Böhm wrote:

>Hi,
>
>an Opteron running at the same clock speed as an athlon 64 should be about 10%
>faster because of his larger cache. Usually an athlon 64 has 512KB and an
>opteron has 1024KB Cache. There are some Athlon 64 Models with 1024KB that
>should behave like single cpu opterons.
>
>In my tests an Athlon 64 running at 2 GHZ is about as fast as a Pentium 4
>running and 4 GHZ.
>
>Perhaps Bob has compared the speed of a 4 CPU Opteron System against a 4 CPU
>Xeon System. Here he might get a double-as-fast because Opterons have better
>multi-processor architectures.
>
>Greetings Volker

Look at my post with real data.  I compared a single opteron processor against a
single xeon 2.8 processor.  Crafty is over 2.1X faster on the opteron.



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