On Tue, 2007-09-18 at 09:29 -0400, Lennart Sorensen wrote: > On Tue, Sep 18, 2007 at 02:18:34PM +0200, Helge Hafting wrote: > > My experimental sudoku solving program is 3x faster on > > a 1.8GHz 64-bit opteron, than on a 2.4GHz 32-bit pentium. In this case, > > a slow 64-bit processor beats a faster 32-bit processor 3x. > > And an athlon64 3500+ (2.2GHz) runs bzip2 5x faster than a 2.8GHz > Pentium 4. The pentium 4 HATES branch heavy code when the branch > prediction fails to work (which essentially by definition it has to on > compression and other optimizing/solving problems). It might have been > a good design for multimedia streaming operations, but it really sucks > at many general purpose tasks. I never did like the pentium 4 even from > day 1.
And in case anyone's not keeping up at the back: Pentium 4 and Core 2 have nothing whatsoever in common, other than the ability to run x86 code. Core 2 is a screamingly fast chip, Pentium 4 wasn't -- ______________________________ / Jo Shields <[EMAIL PROTECTED]> \ | Systems Manager, | \ Oxford Supercomputing Centre / ------------------------------- \ ,__, \ (oo)___ (__) )\ ||--|| * -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]