Author: Tom Kerrigan
Date: 12:53:13 06/20/03
Go up one level in this thread
On June 20, 2003 at 14:20:14, Aaron Gordon wrote: >On June 20, 2003 at 12:48:21, Tom Kerrigan wrote: > >>On June 19, 2003 at 17:32:00, Aaron Gordon wrote: >> >>>On June 19, 2003 at 08:46:45, martin fierz wrote: >>> >>>>On June 19, 2003 at 05:10:25, Aaron Gordon wrote: >>>> >>>>>On June 19, 2003 at 03:55:49, martin fierz wrote: >>>>> >>>>>>i was just reading this computer magazine which says that the new pentium M >>>>>>(also sold as "centrino" together with other components) is very fast compared >>>>>>to older notebooks. does anybody have data on this (e.g. crafty benchmarks)? >>>>>> >>>>>>cheers >>>>>> martin >>>>> >>>>>From what I've seen so far a Centrino cpu is a Pentium 3 with 1mb of L2 cache. >>>>>The extra L2 makes no difference for chess, though. >>>> >>>>if this is true, how come pichard's 1.3GHz centrino runs ruffian faster than my >>>>2.4GHz P4? >>>> >>>>cheers >>>> martin >>> >>>Pentium 4's are much slower MHz for MHz than an Athlon or Pentium 3. This is why >>>an old Celeron 1GHz (with a P3 style core) is the same speed as a Pentium 4 >>>1.5GHz. An old Athlon XP 1900+ 1.6GHz is about as fast as a Pentium 4 2.8GHz in >>>Crafty... and my Athlon XP overclocked to 2507MHz is about the speed of a >>>Pentium 4 @ 4GHz in Crafty if a P4 such as that existed. >> >>No, 1.5ghz vs. 1ghz is significantly different from 2.4ghz vs. 1.3ghz. The >>answer to Martin's question is that the Pentium M is quite different from the >>Pentium 3. >> >>I don't know about Crafty, but I don't think the performance difference between >>the AXP and P4 is that big on average. I know that for my program, my AXP 2000+ >>runs slightly slower than the 2.2GHz Northwood I have at work. >> >>-Tom > >The Crafty & P4 speeds hold true with every other chess program I've seen, but >yours. Not sure what you're doing.. perhaps it's the simplicity of your program >that helps. > >In the tests that I've done for chess, I see... > >Athlon 2.5Ghz == P4-4.0GHz (w/o HT) >Athlon 2.2GHz > P4-3.25ghz >Athlon XP 1.86GHz == P4-3GHz >Tbird 1.68GHz > P4-2.53GHz >Pentium 3 1.12GHz > P4-1.6GHz >Celeron 1.0GHz > P4-1.5GHz. What other programs have you tested? Do you keep track of benchmark scores? It'd be interesting to see all of your data in, e.g., an Excel spreadsheet or something. -Tom
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