Advanced Micro Devices Inc (AMD)

[pgerassi]

Chipguy:

When looking at SPECint make sure the two use the same compiler, etc. Dothan uses ICC 8.0 whereas the A64 3200+ (2GHz) submission uses ICC 7.0. A test of Opteron 270 (2x2GHz) using ICC 8.0 yields 31.5 SPECint2000_rate peak. That works out to 1575 SPECint2000 peak which is higher than 2GHz Dothan 755. Many fall into that trap of not making all else equal. Thats also a big problem when there is only one test with a Pentium M.

Using gcc or MSC make the Dothan worse than a equally clocked A64. And in SPECfp peak, A64 3200+ and Opteron 246 stomp all over Dothan 2GHz. They are 45% faster per clock using Pathscale compiler to Dothan's ICC 8.0 and IFC 8.0. Its not so nice when the shoe is on the other foot, isn't it?

Pete