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Subject: Re: Some thoughts for those who are considering to buy a Dual processor PC

Author: Robert Hyatt

Date: 07:48:36 03/29/01

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On March 29, 2001 at 09:43:16, Joshua Lee wrote:

>
>>
>>SSDF figures are _perfectly_ accurate.  But only to predict outcomes between
>>the players on the SSDF list.  They have _nothing_ to do with the human Elo
>>rating system as provided by FIDE.  Other than they are computed using the
>>same formula.  But to compare a 2600 SSDF rating to a 2600 FIDE rating is
>>simply comparing apples and oranges.
>
>
>Your first sentence hit the nail on the head, and My statements back it up to
>boot there is no clean adding or subtracting to compare any of the Server
>ratings with those programs on the slower hardware on the SSDF list I tried this
>and it doesn't work and the reason being exactly what you stated in your second
>sentence. But i guess the question still is what figures are going to remain
>constant for doubling or tripling hardware in matches against humans and is a
>dual going to be the 1.7x faster it's supposed to be?
>
>Well i do know one thing there is no formula that anyone can come up with that
>will prove to me that a dual 2Ghz machine isn't faster than a single 2ghz
>machine. Now if people mean to compare something like a Dual 1Ghz with a single
>1.7Gz then there's a comparison to make then you've got to figure is the Dual
>going to be a xeon or a regular P3 and what about the 1.7 will the p4 at equal
>clock speed be it's equal the answer for that is no the P4 is the only cpu that
>comes close to an 833Mhz DEC Alpha.   My point there are way too many variables
>and unless everybody used product x the results should always be different.

I don't think there is a chance in hell that a P4 at _any_ clock speed will
come close to the 21264 for Crafty.  Don't know about other programs, of course.
but Tim Mann had a single cpu 21264 at 600mhz that produced close to 1M nodes
per second.





>
>this probably explains some match results.
>
>
>thankyou
>If Christope



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