Author: Eugene Nalimov
Date: 12:04:17 06/07/00
Go up one level in this thread
On June 07, 2000 at 13:24:19, Tom Kerrigan wrote: >On June 07, 2000 at 08:42:20, Laurence Chen wrote: > >>On June 07, 2000 at 05:16:33, Ricardo Gibert wrote: >> >>>On June 07, 2000 at 01:36:16, O. Veli wrote: >>> >>>> I am planning on building a powerful yet cheap PC for chess. AFAIK there is no >>>>difference between Pentium III and Celeron chips on chess performance. A dual >>>>processor version is better than a single one so a dual Celeron + Deep Junior ( >>>>and of course Crafty) will have a strong Elo/$ value (Dual or quad Pentium III >>>>is out of my reach). How much Elo would dual Celeron + Deep Junior gain compared >>>>to single Celeron + Junior? What other things should I keep in mind on this >>>>machine? Thanks. >>> >>>Your choice is not so simple. Consider: >>> >>>ABIT BP6 + 2 533 Celerons $350 >>> >>>ASUS K7V + 1 700 Athlon $350 >>> >>>Its estimated that a doubling of speed is worth about a 50 rating point gain, so >>>we can use the following equation: >>> >>>73*ln(s1/s2) = Delta R >>> >>>73*ln(1066/700) = 31 rating points >>> >>>Now look at the SSDF ratings here: >>> >>>http://home3.swipnet.se/~w-36794/ssdf/nr000.htm >>> >>>Fritz 6 is rated 2721 >>> >>>Junior 6 is rated 2689 (I'm assuming Deep Junior is the same on 1 cpu) >>> >>>2721 - 2689 = 32 rating points >>> >>>So someone with the Athlon will do just as well using Fritz 6 as you will using >>>the dual Celerons using Deep Junior. Of course, these are _very_ rough >>>calculations. >>> >>>We have assumed that the _relative_ ratings are accurate, that the 50 rating >>>point estimate is accurate, that Deep Junior is just as strong as Junior 6 on >>>one cpu, that Deep Junior scales up going to 2 cpus with 100% efficiency, etc. >>>Clearly, many of these assumptions aren't very reasonable. >>> >>>The dual cpu system is not everything it is cracked up to be as far as chess >>>goes. The quality of the program is just as important as the speed of the >>>hardware. But even if Deep Junior is just as good as Fritz 6, you do not gain >>>much. >>> >>>When you get a dual system, your choice of hardware is more limited and your >>>choice of software for it that takes advantage of it is more limited. You make >>>compromises. I prefer the ASUS motherboard to the ABIT motherboard. The ASUS >>>motherboard is the best one for the Athlon. The ABIT motherboard is not the best >>>for the Celeron. It's the one you get when you want to run a dual system. >>> >>>Naturally, there are other reasons for getting a dual system. I hope this helps >>>you make your decision. >>You forgot to mention about the OS, a dual processor will require Windows NT, or >>Windows 2000, since Microsoft no longer sells Windows NT 4, then you have no >>choice but buy Windows 2000, the OEM is about U.S. $350.00. >>IMHO I don't think that Celerons are suitable as Dual Processors for high end >>processing. Celerons are great for Games, or some office suite programs such as >>Word Processing, and spreadsheets. >>Laurence > >Celerons are all but identical to Pentiums. I don't know why either chip would >be better at something, unless you're talking about some esoteric cache issue. > >-Tom Of course Celeron differs: (1) Smaller L2 cache size -- 128Kb vs. 256Kb (for newer PIIIs) or 512Kb at 1/2 CPU speed (for PIIs and older PIIIs). (2) Slower bus speed -- 66MHz for older Celerons (vs. 100MHz for PII/PIII at that time), 100Mhz for newer ones (vs. 133MHz for new PIIIs). Both those factors hurts programs with high memory traffic in general, and multiprocessor systems in particular, as in "value computers segment" memory bandwith must be shared between CPUs. So, I'd not recommend to run CPU-bound database application on a dual Celeron system. But for chess program dual Celeron must be fine. Also notice that on dual-CPU system you often have better response time than on the single-CPU one (even when that single CPU is faster), so system can appear faster that it really is :-) Eugene
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.