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Subject: Re: Next Palm 61 times as fast? How would that affect chess apps?

Author: Uri Blass

Date: 03:43:22 02/07/02

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On February 07, 2002 at 02:04:05, Pham Minh Tri wrote:

>On February 06, 2002 at 16:43:09, Dann Corbit wrote:
>
>>On February 06, 2002 at 14:13:03, Roy Eassa wrote:
>>
>>>http://www.palminfocenter.com/view_Story.asp?ID=2965
>>>
>>>"... code that has been recompiled for ARM-based chips is 61 times faster on a
>>>200MHz ARM processor compared to a 33MHz Dragonball one."
>>>
>>>Is that a typo?  Did he mean 6 times?
>>>
>>>If it's not a typo, how would a factor of 61 (article actually implies factor of
>>>62 by saying "faster than" rather than "as fast as") affect the rating of such
>>>apps as Chess Tiger for Palm and ChessGenius for Palm?
>>
>>A fairly conservative estimate is 50 ELO increase for each doubling in speed.
>>With 5.93 doublings, we would have +296.5 ELO increase.
>
>Hi Dann,
>
>200MHz = 33MHz x 2^n --> n < 2.5 --> we would have max +125 Elo increase ;)
>
>Or
>
>61 times = 2^n --> n near 8 --> near +400 Elo increase

61<2^6

I guess that Dann got 5.93 from solving the equation 2^x=61

I think that you are confusing between n^2 and 2^n(this is the only way that I
can understand why you think that n is near 8 because if you solve the equation
n^2=61 you get n that is near 8)

Uri



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