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Subject: Re: chess computer ratings

Author: Robert Hyatt

Date: 19:40:26 09/23/01

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On September 23, 2001 at 15:54:57, Michael Fuhrmann wrote:

>On September 23, 2001 at 10:21:44, Robert Hyatt wrote:
>
>>On September 23, 2001 at 09:04:34, gregory j capace wrote:
>>
>>>If you have a faster processor, how much strength does this dd to the program ?
>>>Does Fritz 6 run any stronger on my 566 mghz, versus a 450 nghz. , like the
>>>rating says. How strong would it be on a 1.2 mghz. computer ?
>>
>>
>>Against humans, there is no real data.  If you are talking about taking a
>>program on an XXX megahertz machine, and playing it against a program on
>>a 2*XXX megahertz machine, then the faster machine will be rated about 60
>>points higher, using the typical Elo formula.  I don't think that +60 will
>>be true for games vs humans, however.  It might be 1/2 of that or even less.
>
>Is this true regardless of what XXX is? To rephrase, while going from 350
>megahertz to 700 might yield a 60-point elo bonus, would going from 1 gigahertz
>to 2 gigahertz also yield 60 points? And what about a hypothetical 2 gigahertz
>to 4 gigahertz? Isn't there a horizon effect whereby the elo gain diminishes?


Depends on who you believe.  I've seen no evidence of this yet.  It might
flatten out at some point.  But 2x faster for now is a serious handicap.



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