Author: Paul J. Messmer
Date: 14:00:35 10/23/02
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Well, not really. One of the PDAs that I own is a Toshiba e740, which is a Pocket PC with the same Intel 400MHz PXA250 processor as the ASUS. It's a lot faster for chess than my (Dragonball) Palm, but not as fast you might think. Pocket Fritz on this machine only gets a few thousand nodes per second, similar to a build of Crafty running on the e740. My rough estimate is that for chess, this PDA gets the equivalent performance of something like a 33 Mhz Pentum (like the original P5 architecture, with only L1 cache and no L2 cache). Interestingly, when comparing this PDA to a Compaq iPaq with a different ARM processor (not an XScale from Intel, and only running at ~200 Mhz), Pocket Fritz was 10% FASTER on the iPaq! DOH! Double the Mhz, take 10% off of performance on the same binary :-) I don't know whether to attribute this to a possibly different memory architecture between the machines, or the differences in microarchitecture between the processors (the XScale has a longer pipeline for example), or what. It's far faster than my old Palm. But definitely at least an order of magnitude slower than a 400 mhz PC. On October 23, 2002 at 07:17:19, ludicrous wrote: >Wow! 400 mhz! Like carrying with you a portable pentium 3! Pocket Fritz would >be delighted!
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