Author: Ernst Walet
Date: 11:53:37 08/20/04
Go up one level in this thread
On August 20, 2004 at 12:00:38, Tom Kerrigan wrote: >On August 20, 2004 at 07:26:28, martin fierz wrote: > >>On August 20, 2004 at 04:33:07, Tom Kerrigan wrote: >> >>>Now that AMD is selling two processors that are identical other than L2 cache >>>size (Sempron has 256k, Athlon 64 has 512k) we have proof of Crafty's working >>>set size: >>> >>>Sempron: 1,080,020 NPS >>>Athlon 64: 1,080,230 NPS >>> >>>http://www.anandtech.com/linux/showdoc.aspx?i=2170&p=3 >>> >>>This should prove once and for all that Crafty's working set is < 256k and >>>therefore that size of L2 cache has no effect on its performance (as long as >>>it's >= 256k) and that main memory speed likely plays a trivial role >>>performance-wise. >>> >>>I bring this up because of all of the long debates that have occurred in the >>>past about the value of L2 cache, the speed of memory, and the working set size >>>of chess programs. >>> >>>I have no doubt that Crafty uses a bunch of memory, but obviously not with >>>enough temporal locality for it to matter one iota. >>> >>>-Tom >> >>if i read this right, then the sempron 3100+ would be a very good choice for a >>(computer-chess-)power hungry user on a tight budget. correct or not? is there >>anything better out there price/performancewise right now? > >That would be a pretty darn tight budget. The price difference between a Sempron >3100+ and an Athlon 64 2800+ is only $20. They run at the same clock speed but >the A64 has twice the cache and 64-bit mode, which are fairly unimportant for >computer chess but useful features to have in general. > >You could save yourself a bunch of money by getting a Duron and a Socket A >motherboard instead of a Sempron 3100+ and a socket 754 motherboard. > >1.8GHz Duron: $49 >MSI Socket A motherboard: $48 > >Sempron 3100+: $128 >MSI Socket 754 motherboard: $83 > >($114 difference) > >-Tom What I don't get is that this Sempron has a rating of 3100+ and this A64 2800+. I would expect the other way around.... Ernst.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.