Author: Shaun Brewer
Date: 05:05:42 10/09/02
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On October 09, 2002 at 07:32:08, Joachim Rang wrote: >On October 09, 2002 at 07:10:26, Shaun Brewer wrote: > >>I have just upgraded on of my machines from a TBird 850 to XP2000+ CPU change >>only. >> >>I am happy with the result inexpensive and effective 2x performance for chess. >> >>I have done some comparisons with 2 friends machines they both have XP2000+ >>processors but with DDR ram I wanted to see what benefit this gave them. >> >>My machine KT133A (ABIT KT7A) chipset SDRAM cas 2 >> >>Theirs: >> >>KT333 (ASUS board) PC2100 DDR >> >>KT400 (Gigabyte board) PC2700 DDR >> >>I took the first nunn position and let crafty think overnight 196mb hash 48mb >>hashp - my results were better!!! I was expecting a significant boost for DDR >>and the newer motherboards. >> >>Questions. >> >>Does anyone know if the following are the reasons? >> >>They are running XP rather than Win2000. >> >>I have the BIOS settings set fairly aggressively where as they are running >>defaults. >> >>I am planning another upgrade and if there is 'minimal' difference for chess >>between DDR and SDRAM I can save a fortune/avoid wasting a fortune as I have >>been looking at expensive and fast DDR memory in a KT400 motherboard. >> >>Thanks >> >>Shaun >> Cut >> > >I think this is because of the BIOS-Settings. These setings have an significant >impact to the speed. I don't think, that WinXP consumes more CPU_ressources than >W2K (the memory-allocation should be even better in XP). Probably it's the >CAS-LAtency which matters. Maybe there were other factors like Antivirus-program >in background. A good comparison is Fritz-Mark, but therefor one needs this >program. > >I have only little experiences, but the difference between SDRAM and DDRAM seems >quite small for chess. >it's probably the CAS-Latency of 2 which matters. Thanks for the reply, Background tasks should not have been a problem as the task monitor was showing 99/100% usage. Adjusting the biso I have got a few % in the past but I had realy expected to see a significant differnce in favour of DDR. At some point I might do a test install of XP so I can compare on identical hardware. I was just hoping someone might have alreay done this and noted the difference. Thanks again Shaun
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