Author: Christophe Theron
Date: 19:30:35 09/21/03
Go up one level in this thread
On September 21, 2003 at 19:54:12, Mike Byrne wrote:
>Current SDDF ratings
>
> Program/Computer Rating
>1 Shredder 7.04 UCI 256MB Athlon 1200 MHz 2810
>2 Shredder 7.0 256MB Athlon 1200 MHz 2770
>3 Fritz 8.0 256MB Athlon 1200 MHz 2762
>4 Deep Fritz 7.0 256MB Athlon 1200 MHz 2761
>5 Fritz 7.0 256MB Athlon 1200 MHz 2742
>6 Shredder 6.0 Pad UCI 256MB Athlon 1200 2724
>7 Shredder 6.0 256MB Athlon 1200 MHz 2721
>8 Chess Tiger 15.0 256MB Athlon 1200 MHz 2720
>9 Shredder 7.0 UCI 128MB K6-2 450 MHz 2717
>9 Chess Tiger 14.0 CB 256MB Athlon 1200 2717
>
>Based on everything I have looked at (analysis of positions etc), PF 2 is more
>akin to Shredder 7 and not Shredder 7.04. On a Dell Axim running at 400 Mhz,
>it appears to be about 12=15x slower than a P4 1.7 Ghz which runs pretty close
>to a P3 1.2Ghz.
>
>If one assumes for the moment that doubling of speed is worth 50 points (which
>is high IMO
No you are wrong. Doubling the speed increases the SSDF elo rating by 60 to 70
approximately.
So your estimation of the strength of PF2 on Dell Axim is too high.
> - I think it's closer to 35-40 points at the high end) - then we can
>work backwards. For simplicity. let's just say an Axim is 16X slower than 1,2
>Ghz (it's not - but this make the numbers easier to work with).
>
>16x = 2^4. So we take 50 x 4= 200 points - so in the case PF2 on a Dell Axim
>running Mobile 2003 is equal to 2570 to SSDF conservatively.
It is not conservative at all. See my remark above.
>This over 200
>points higher than any estimate for any program running on the Palm Tungsten
Probably not.
And when Chess Tiger for PalmOS in native ARM code is ready, this advantage if
it exists will vanish.
Christophe
and
>clearly ahead of any dedidicated unit.. This clearly in IM range and maybe even
>weak GM level. A 206 Mhz ARM would be about 100 points less than this or 2400
>SSDF under this scenario. IMO, it is only about 70 points less.
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