Author: Hristo
Date: 09:12:41 11/03/05
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On November 03, 2005 at 03:12:39, Andreas Guettinger wrote: >On November 02, 2005 at 21:42:18, Hristo wrote: > >>On November 02, 2005 at 16:19:03, John Dillard wrote: >> >>>On November 02, 2005 at 15:34:30, Joshua Shriver wrote: >>> >>>>http://www.apple.com/powermac/ >>>> >>>>nice :) would make a good quad system. >>>> >>>>-Josh >>> >>> >>>They're making a quad system. There's not other system on the market today, >>>super computer or otherwise, that can process as many gigaflops of info as the >>>dual core G5. I just wonder if any of the chess programs will benefit from this >>>power? >> >>John, >>I love Apple computers. In fact I'm writing this on my favorite PB 17" (OS-X >>10.4.3). The other fact is that at work I use Opterons (three different >>systemsin my office, all of them dual CPU) and those systems are able to match >>or destroy (in some cases) the newer Macs (which we also have at work). >>The only time a Mac wins (against Intel ot AMD) is when you can fit your problem >>solution into Altivec and then spend some time optimizing it, which we have done >>in a few cases in the domain of signal analysis. Outside of the Altivec-unit the >>Macs are not going to win against AMD. >>Memory access latency is the killer for many apps, not the memory access >>throughput. In this sense most chess programs are limited by random access >>latencies and not be sheer throughput (as it is needed in video or signal >>processing). The dual-core G5s are not going to win the contest so easily >>against AMD in particular. (In fact I would pay extra to get OS-X run on an AMD >>processor) >> >>Anyway, >>enjoy your Mac for what it is, the best computer experience you can have today, >>and not for what it isn't the best chess playing computer in the world. If >>someone spent the time to translate (port) their chess algorithms to Altivec (if >>this is even possible) then your assumption _might_ have some merit. Until then, >>enjoy your computer and what you can do with it. :-) >> >>Regards, >>Hristo > >Maybe the faster DDR2 533 memory of the new dual cores G5 system reduces the >memory access latency, who knows. Actually, I think that this faster memory is needed because there are now 4 CPUs poking at it. So in order to keep the performance on per CPU basis the same as before you would certainly need faster RAM:-) Regards, Hristo > >- Andy
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