20 Mar
2004
20 Mar
'04
02:29
William A. Mahaffey III wrote:
Interesting. I understand the necessity for good code & compilers to achieve speed-of-light performance, I was just asking what the speed-of-light is under AMD64, i.e. are they just a 64-bit version of P3/P4 (2 ticks / FPop) or more like SGI ?
Have you check AMD's web site? They have a whole section of AMD64 manuals (There is an AMD Athlon64 Tech Docs link is on the front page). There is a 5 volume programmers manual under the Opteron section. I remember flipping through an optimization guide there somewhere but most of it was above my head. I assume that the FPU is based on the Athlon which I remember being faster than the P4 one. -- Shawn D'Alimonte shawnd@mycybernet.net