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dsouza123 · 2004-02-19, 14:19

Athlons are faster using the FPU, P4 have a very slow FPU which is why SSE2
instructions that do floating point math are used instead.

The P4 integer unit (for some code) runs at twice the clock speed.

Athlon64s have speed/access issues with SSE2.

2004-02-19, 14:19	#5
dsouza123 Sep 2002 2·331 Posts	Athlons are faster using the FPU, P4 have a very slow FPU which is why SSE2 instructions that do floating point math are used instead. The P4 integer unit (for some code) runs at twice the clock speed. Athlon64s have speed/access issues with SSE2.