Author: Richard A. Fowell (fowell@netcom.com)
Date: 21:43:40 11/23/97
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On November 22, 1997 at 13:33:19, Moritz Berger wrote: >On November 22, 1997 at 01:42:33, Hans Havermann wrote: > >>On November 21, 1997 at 19:47:44, Robert Hyatt wrote: >> >>>All depends on the PPC chip of course. But there are some *screamers* >>>coming out very soon, that will be 2x-3x faster than the PII/300... > >As I can be safe here on CCC from flame wares, I dare to ask the >following question ;-): > >I always thought that the current PPC designs were completely memory >starved (even compared with the also not brilliant Intel architecture), >i.e. 50 Mhz bus speed etc. Has this changed recently? Most reviews >completely ignore the memory bandwidth issue which is extremely >important for chess programs, of course. > >Please enlighten me ... > >Moritz It is true that until last month, Power Macintoshes ran their L2 cache at a bus speed of at most 50-60MHz (main memory bus). However, current G3 Macs run a 66MHz bus, with L2 cache at 1/2 CPU MHz (like Pentium 2), and some G3 upgrade cards will even run the L2 cache at the CPU MHz (like Pentium Pro), though I'm not 100% sure any of these are out yet.
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