Quote Originally Posted by informal View Post
Zambezi core in FX4100 has exactly 25% lower SIMD/fp performance than Deneb core...
Exactly? Isn't it an average value? I think you should make a distinction between scalar and vector (SIMD) performance, and also upon optimization. I think it's worse only with non-optimized scalar FP code (such as most if not all the programs you've mentioned).