Intel 64bit / AMD 64 bit advantage
Wojciech Puchar
wojtek at tensor.3miasto.net
Sun Aug 27 20:03:26 UTC 2006
> 32 vs 64 bits does not give you any raw performance boost for most apps. The
yes it will. FreeBSD/amd64 works at least 10% faster than FreeBSD/i386 on
athlon64 machine, when i386 version were recompiled for P4. With default
FreeBSD/i386 - it will be at least 30%.
just because it's not just 64-bit addresses, but twice
the registers (r8-r15) allowing C compiler to generate more efficient
code.
For now AMD64 is the fastest and cheapest architecture - at least with AMD
processors, not intel clones. (YES now intel makes clones of AMD
processors)
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