Author: Christophe Theron
Date: 12:09:50 07/29/01
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On July 29, 2001 at 10:59:39, Alain Lyrette wrote:
>On the ChessGenius homepage it says that the palm version of that program plays
>around 2000(american elo) but that same program on a PocketPc (now available)
>shoud be around 2300.This is a huge difference...i wonder if the difference will
>be as great with Chess Tiger for PocketPc(from 2100 to 2400)?How does a
>strongarm 206 mhz compare to a conventionnal pentium or k6 running at the same
>speed?....Alain Lyrette
Apparently the iPaq at 206MHz is something like 10 times faster than the Palm's
DragonBall at 20MHz.
10 times faster turns out to be an elo difference of 233 points.
( the formula is: elo_diff = 70 * log(speed_ratio) / log(2) )
So Chess Tiger on the iPaq from this formula could reach 2333 elo. I believe it
will be more, because on the Palm I'm only using 48Kb of hash tables, and I'll
be using more on the iPaq.
On the other hand, Chess Tiger 11.8 running on a P90 is rated 2382 by the SSDF
list. Chess Tiger 14 is at least 100 elo points above that, so it could be 2482
on a P90.
How much slower is the StrongARM 206MHz, compared to the Pentium 90MHz?
Another point of comparison is that Chess Genius 5 on P90 is rated 53 elo points
below Chess Tiger 11.8 on the same hardware.
All this does not give definite answers, but at least some approximations.
Christophe
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