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Subject: Re: SSDF There is something wrong about doubling the speed ?

Author: Peter Fendrich

Date: 04:15:29 12/06/02

Go up one level in this thread


On December 06, 2002 at 03:47:31, Jorge Pichard wrote:

>On December 05, 2002 at 16:52:06, Roy Eassa wrote:
>
>>1200 MHz Athlon results only:
>
>I read several times that doubling the speed account for at least 50 Rating
>points, but if you consider Chess Tiger 15 performance on a mere K6 450 Mhz
>which is less than half the speed of an AMD Athlon 1.2 Ghz, the difference is
>less than that.

You can't make any conclusions by looking at only one engine...
50 is a mean value that will vary a lot between different engines, environemtns
and other conditions.
As always there is also the influence of random fluctuations.
As Thoralf points out CT 15.0 is better than the rest on the 450 MHz machines
used but not on the 1200 MHz machine. One reason could be that CT 15.0 is better
optimized for 450 MHz.

Peter


>11 Chess Tiger 15.0  128MB K6-2 450 MHz    2679   50   -48   210   60%  2607
>
>>                      Rating   +    -  Games   Won  Oppo
>>                      ------  ---  --- -----   ---  ----
>> 1 Deep Fritz 7.0      2755   31   -29   614   71%  2603
>> 2 Fritz 7.0           2741   30   -29   574   64%  2636
>> 3 Shredder 6.0 Paderb 2734   25   -24   852   65%  2624
>> 4 Chess Tiger 15.0    2731   33   -31   517   67%  2609
>> 5 Shredder 6.0        2717   32   -31   505   64%  2618
>> 6 Chess Tiger 14.0 CB 2715   30   -30   557   61%  2636
>> 7 Deep Fritz          2711   31   -30   531   62%  2628
>> 7 Gambit Tiger 2.0    2711   29   -29   583   58%  2652
>> 9 Junior 7.0          2687   28   -28   623   57%  2637
>>10 Hiarcs 8.0          2680   26   -26   738   55%  2642
>>12 Rebel Century 4.0   2675   29   -29   590   60%  2604
>>13 Shredder 5.32       2662   27   -27   659   53%  2642
>>14 Gandalf 4.32h       2651   34   -33   430   54%  2623
>>18 Gandalf 5.0         2640   49   -50   202   46%  2671
>>19 Gandalf 5.1         2637   25   -25   758   55%  2603
>>23 Gromit 3.11.9       2622   57   -59   148   45%  2661
>>26 Crafty 18.12/CB     2612   27   -27   647   52%  2601



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