Author: Vincent Diepeveen
Date: 06:49:39 03/26/02
Go up one level in this thread
On March 25, 2002 at 08:48:54, Sune Fischer wrote: >On March 25, 2002 at 08:00:18, Vincent Diepeveen wrote: > >>On March 25, 2002 at 07:52:12, Sune Fischer wrote: >> >>>On March 25, 2002 at 07:05:26, Vincent Diepeveen wrote: >>> >>>>The only INTERESTING thing is how fast a processor + compiler performs >>>>for a program. If you build a 1Ghz processor, then it gotta beat >>>>a 2Ghz K7 simply. If it doesn't, THEN YOU ARE SLOWER. >>> >>>Actually, it might beat it: >> >>>"In SPEC CFP2000 the Alpha 21264A running at 667MHz can outperform our beloved >>>AMD Athlon at over 2x the clock speed, not to mention that Intel's own Itanium >>>only runs at 800MHz while providing even higher scores." >> >>that's the floating point unit Sune. not a single chessprogram is >>using much floating point. also floating point isn't faster than >>integers (otherwise we could rewrite stuff to floating point). >> >>Just look how fast the best prepared alpha machine at specINT is >>completely outgunned by XP2000 (=mp2000). > >That is true when talking about the Alpha, it was probably not designed to be >very integer fast, I've even heard it couldn't do integers, that it would just >cast from floats. Don't know if that is true or not, but why would the Hammer >have the same weakness? >Look at the specs for the Hammer, it looks as though it will be 2x faster at >64-bit int-operations. All i know from the hammer is that i can't buy it in the store coming year. I can buy right now an XP2000. If you wanna buy a hammer, i would by the way buy a McKinley instead with a compiler that produces optimal code for the mckinley. So let's focus upon processors that are for real and working right now. Let's not focus upon processors from which it is not sure whether they are fast and even less sure when they are in the shops. the step from K6 to K7 was big for AMD, but not nearly as big as from K7 to hammer (unless they have a sucking design for 64 bits). Also the P4 on paper was a great processor, when it was released it was a major failure. Nevertheless, let's focus upon what is in the shops of today. Hammer isn't there. Just like the K7 took many years before it was actually produced. >-S.
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