Author: Andreas Guettinger
Date: 15:44:25 10/19/05
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On October 19, 2005 at 17:00:35, enrico carrisco wrote: >On October 19, 2005 at 14:25:50, John Dillard wrote: > >>The strongest 64 bit processor on the market is the dual core G5 from Apple. It >>runs runs 21 double precision gigaflops per second and 76 in single precision >>mode. Nothing from Intel or AMD even gets in the ballpark. > >Impressive but I doubt Mr. Taylor was asking in reference to "rendering" >something. Perhaps within the Adobe stuff that was made for the Mac the numbers >are very impressive -- but visit the link below for the real world (including >computer chess, which just happens to be what this forum is about...) G5 gets >raped. Period. > >http://www.anandtech.com/mac/showdoc.aspx?i=2436&p=5 > >-elc. Forget Anandtech. They mess up big time. I don't know how reliable their x86 tests are but they messed up any test of the Apple PowerPC they made so far. At least they posted a correction. Here are the real numbers: http://anandtech.com/mac/showdoc.aspx?i=2520&p=4 As you can see, at least on gcc4.0 (big improvement for PowerPC) the G5 is on par with the opteron. For the first tests they used the stock gcc3.3.3 version from the gcc branch that contains all the x86 optimizations ever made in the x86 Linux world, even though Apple ships a gcc version 3.3 with their system that includes PowerPC specific optimizations. Anyway, old story. What's propably more interesting (not chess-wise, I agree chess performance on the Mac sucks) they sell now a Dual Dual core 2.5 Ghz G5 for almost the same price. :) That's probably what John meant. regards Andy
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