Author: Dann Corbit
Date: 16:25:39 11/15/05
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On November 15, 2005 at 17:54:22, Terry Giles wrote: > >It's odd but about fifteen years or so ago I was convinced that by now we would >have a 'credit card' size chess computer of good county strength play or >greater. >However I was less convinced of our having a grandmaster strength program, let >alone the then world chess champion losing to a chess machine before the end of >the twentieth century. >It would be interesting to know how strong today's best programs would be if >they were re-written to run on say an 8 bit 6502 or Z80a CPU. From: http://homepage.virgin.net/roy.longbottom/whetstone.htm Using Whetstone as a benchmark, Z80A was 0.00052 MWIPS 6502 was 0.0031 to 0.0011 MWIPS (We'll take the high figure) Athlon 4 1805 MWIPS That's 3,471,154 times faster than a Z80A and 582,258 times faster than a 6502/6510. (Of course there were faster Z80 chips made later). That indicates 19 doublings in speed, at about one ply each for modern programs with a branching factor of 2 (such as Shredder and Fruit). About the same level of innovation is to be found in software. >How much of today's chess program strength is reliant on hardware and just how >much improved are their algorithms to yesteryears? Hard to know, but it is monumental in both aspects. Eventually, a credit card sized chess computer will be stronger than Deeper Blue. I wouldn't want one though. I need a bigger screen to enjoy the game. Too much squinting at something of that size.
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