Computer Chess Club Archives

Search

Terms

Messages

Subject: Re: Sorry about ignorance. Are 64-bit comps X2 speed for chess?

Author: Slater Wold

Date: 09:33:20 12/09/03

Go up one level in this thread

On December 09, 2003 at 11:49:19, Mathieu Pagé wrote:

>On December 09, 2003 at 11:16:02, stuart taylor wrote:
>
>>Is 2.2 Ghz. of a 64-bit computer a similar speed for chess as is 4.4 is it were
>>a 32-bit one?
>>If not, what?
>>S.Taylor
>
>Hi!
>
>No, it is not.
>
>64-bit computer are not twice as fast as 32-bit ones. The number of bit
>represent the natural lenght of an number on a cpu. Since chess engines use lot
>of 64 bits numbers they will run faster on 64 bits machines because on 32-bit
>machines they have to do some trick to do 64 bits maths that are natural on a 64
>bit cpu.
>
>I dont think the improvement will be in the range of 2x speed up. Anyway it will
>vary from diffrents engines.
>
>Mathieu

GCP reported 70% with Sjeng.

Bob has reported about 50% with Crafty.

This page took 0.01 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.