On 28.09.2008 11:52, Clemens Eisserer wrote: >> I'd bet against that :-). Core 2 has magnificent SSE performance indeed, >> but that's true for MMX just as well. > Well, Core2 (and AMD K10) got support for 128bit operations per clock, > whereas previous processors only supported 64bit at once, and took 2 > cycles for 128 bit operations. > MMX is just 64-bit, so it should't matter much there. Ah yes you're right. Somehow I thought it would execute mmx twice as fast as well - clearly that's not true. Should indeed be much closer on older cpus.
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