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Subject: Re: Has others seen this type of speed/rating increase?

Author: Enrique Irazoqui

Date: 11:29:01 01/29/99

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On January 29, 1999 at 14:06:18, KarinsDad wrote:

>On January 29, 1999 at 13:35:24, Enrique Irazoqui wrote:
>
>>On January 29, 1999 at 12:50:46, Bertil Eklund wrote:
>>
>>>I choosed a fixed depth and played a move out of book i.e. 1.h2-h4 and compared
>>>the times. But you are right the difference between P90 and P200MMX is about
>>>75 elo. The hash-tables has increased about 4 times I guess this could give 10
>>>-20 points. So the cpu difference could be about 60 elo.
>>
>>I checked again the difference P200MMX/P90 and I have the following:
>>
>>Cm5K       2.87x
>>Rebel 9    3.07x
>>Genius 5   2.94x
>>Hiarcs 6   3.03x
>>Mchess 6   2.62x
>>
>>Average = 2.9
>>
>>Enrique
>>
>>>Bertil
>
>Enrique,
>
>It could also be a motherboard issue or something unrelated to the CPU itself
>(either for you or for Bertil, I have often seen differences between machines
>which are supposed to be identical or nearly identical). It would be interesting
>if several other people could do the test.
>
>Bertil also did not indicate which software he was using.

Several people talked about this time ago and the consensus was the 3x speed
increase. I remember specifically some comments from Ed and from Bob agreeing on
the 3x issue. My interest in this is to find out what we can expect in terms of
strength when doubling speed. When I calculated this several months ago, I came
with 50 Elo = 2x.

Enrique

>KarinsDad



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