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

Author: Uri Blass

Date: 04:09:18 12/06/02

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On December 06, 2002 at 06:57:12, Jorge Pichard wrote:

<snipped>
>>>The difference has already decreased from 50 to 45 and even lower than 40 if you
>>>take into consideration Chess Tiger 15 from K6-450 Mhz to 1.2 Ghz.
>
>
>Doubling the hardware's speed would be from a K6-450 Mhz to an AMD 900 Mhz,

I do not know
I think tha dividing Mh is not correct for comparing speed.


 but
>you are considering from K6 450 to 1.2 Ghz which is almost 3x times faster.
>
>Pichard.

I know that the hardware is not twice faste but my point was that using only
tiger for estimate is wrong because of the big statistical error.
I did not give an estimate for the speed from doubling because I do not know the
exact speed difference between the old hardware and the new hardware.
I suspect that is more than 3 times faster based on some posts of jouni uski
but 81 elo from being 2^1.62 times faster is the same as 50 elo from being twice
faster.

2^1.62 is close to 3 but I am again too lazy to calculate it at this moment

Uri
>
>>I think that there is a bigger statical error and I expect the difference to be
>>more than 50 even for tiger in the next list
>>
>>The difference for Deep Fritz7 is 110 elo and the right gain is probably in the
>>middle.
>>
>>(110+52)/2=81 is an estimate for the gain from the new hardware(52 is for tiger)
>>
>>It is possible to calculate better estimate by using more programs but I am too
>>lazy to do it at this moment.
>>
>>Uri



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