Author: Mike Byrne
Date: 20:20:18 03/20/05
Go up one level in this thread
On March 20, 2005 at 20:49:25, Peter Stayne wrote: >Thanks, though it will be a quite some time before I'm able to do that since I >still have to get the motherboard/sata hd/ram/case, and I'm not a rich man :) > >I am curious how much l2 cache helps chess engines, though. Quite some time >after I put together my Xeon (512k l2 cache, 533MHz RAM), the newer versions of >the Xeons came out with 1MB cache and 800MHz RAM. From reading CCC for a few >years, I know the RAM speed doesn't help much, but does the cache help a lot? > >And also, if I remember correctly, the even newer Xeons have support for the >same 64-bit instructions that the Opterons have. Has anyone in the Crafty camp >been able to try Crafty64 on these? (out of curiosity really, I'm going Opteron >all the way.) > >Sorry for all the questions :) > >Pete cache is good, but I'm not sure for how much...there is spec site that has spec listed for different setups , you can peruse those, it was there that I realize that Crafty is dynmamite on an Opteron (www.specbench.org) ..from what I can tell , the type of CPU, and the CPU clock speed are the main driverd and all those other things - Cache, bus speed, etc might make a 5 % difference Xeon are still xeons and will get no way near the Opteron on nps/Ghz basis in the current series - as far as far 64 bit mode, I would hope that they would get the same 33% boost as the Opteron - but I have not seen (and I am not looking for ) any specs on that yet ...AMD is eating Intel's lunch here, which bodes well for the future - nothing like a little competition to spur R&D along for further speed increase
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