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Subject: Re: Speedtest with Celeron & Celeron with cache

Author: Mark Young

Date: 23:20:07 10/05/98

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On October 06, 1998 at 01:44:15, Mark Young wrote:

>On October 05, 1998 at 20:42:12, Paul Petersson wrote:
>
>>Here are some results from testing two Celeron processors. I used the BT16
>>position and Rebel 8.
>>
>>
>>REBEL 8                              BT16
>>--------------------------------------------
>>
>>Celeron 266 @266 MHz (66*4)          5:29
>>
>>Celeron 266 @400 MHz (100*4)         3:39
>>
>>
>>Celeron 300A @300 MHz (66*4.5)       2:56
>>
>>Celeron 300A @450 MHz (100*4.5)      1:58
>>
>>Celeron 300A @460 MHz (102*4.5)      1:55
>>
>>Celeron 300A @504 MHz (112*4.5)      1:45
>>
>>It gets very hot at 504 MHz, and hangs after a while, but at 460 MHz and lower
>>it runs without problems.
>>
>>
>>Paul
>
>Some of the times you post seem a bit fast for the Intel chip. Did you use 4 mb
>of hash, and use the time to complete the full 9 ply search. Your 450mhz time of
>1:58 is very close to Ed's time of 1:44 for his 450mhz AMD K6-2 chip. If I use
>28mb of hash on my computer. I do a 9 ply search over 1 min faster then I do
>using 4mb. One of the reasons 28mb is faster is you do not find the key move
>Nxg2 so the program does not hang on that move for a long time, checking out the
>move to make sure it is good. Now at 60mb Hash I find the key move Nxg2 and it
>take me about 1 min longer to do 9 plys over 28mb hash and about the same as 4mb
>hash.

Here is what I mean.

4mb hash, time to finish 9 ply search 2:33, move found after 9ply search Nxg2

28mb hash, time to finish 9 ply search 1:49, move found after 9ply search Nf5

60mb hash, time to finish 9 ply search 2:35, move found after 9ply search Nxg2

Rebel 8 running under windows. PII 400



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