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Subject: Re: Question: how does Centrino compare with P4 and/or Athlon? Thanks

Author: Russell Reagan

Date: 10:38:45 01/01/04

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On January 01, 2004 at 11:31:22, Peter Kasinski wrote:

>Thank you for your answer. I am curious about its performance (Pentium M) - the
>clock frequency is lower, it appears that HT is missing, and yet it is better
>for chess. Can you help me understand?  Thank you.

A Centrino 1.3 GHz is only slightly slower than my Athlon 2 GHz (2400+) for
running chess programs. A Centrino 1.5 GHz and 1.7 GHz will surely be faster
than an Athlon 2 GHz, so it is a good CPU to get if you can afford it. My
brother has a laptop with a Centrino, and it runs very quiet too. As for why it
is faster, I believe they basically took a PIII and gave it a longer pipeline
(which the P4 has), but the Centrino has much better branch prediction. And
there is the larger cache. A P4 may be at 3GHz, but the branch prediction isn't
as good, and with a longer pipeline, that's not a good situation.



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