Computer Chess Club Archives

Search

Messages

Subject: Re: Why is P4 less efficient than Athlon (or P3) for chess programs ?

Author: Joachim Rang

Date: 12:02:55 07/03/03

Go up one level in this thread

On July 03, 2003 at 12:27:20, Ernest Bonnem wrote:

>Does anybody here know the (somewhat detailed) technical reason ?
>Chip architecture ?
>
>On the average, for chess programs, a P4 running at frequency F is equivalent to
>an Athlon at frequency F times 2/3.
>Actually, it seems that this 2/3 ratio is no longer as bad for hi-end P4 (3.06,
>3.0 GHz) or the Mobile Pentium : any confirmation and reason ?

The main reason is, that Athlon and P3 have 9 instructions per cycle and P4 has
only 6.

Hyperthreading and higher FSB may improve the newest P4s.

regards Joachim

• Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Anthony Cozzie 17:11:59 07/03/03
• Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Russell Reagan 13:23:10 07/03/03
  • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Tom Kerrigan 13:48:07 07/03/03
    • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Vincent Diepeveen 11:37:37 07/04/03
      • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Jeremiah Penery 14:01:36 07/04/03
        • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Vincent Diepeveen 15:21:08 07/04/03
          • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Jeremiah Penery 18:21:47 07/04/03
            • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Tom Kerrigan 18:44:06 07/04/03
    • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Robert Hyatt 16:38:29 07/03/03
      • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Tom Kerrigan 17:11:24 07/03/03
        • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Robert Hyatt 20:26:56 07/04/03
          • Re: Why is P4 less efficient than Athlon (or P3) for chess programs ? Tom Kerrigan 14:19:50 07/05/03

This page took 0.04 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.