A German hardware magazine compared a 3 CPU types with single player benchmarks of Crysis. The E8400 which comes with 333 x 9 and 3 GHz was downclocked to 266 x 9, so it ran with the same clockspeed with the E6600 and the Phenom X4 9700 which had 2 cores disabled.
The text is in German, but the pictures speak for themselves ...
As you see Wolfdale performed the best in Crysis, and Phenom was the slowest
Source
PCGH - Test: Duell der Dual-Cores: Phenom X2 vs. Penryn Dual-Core vs. Core 2 Duo
The text is in German, but the pictures speak for themselves ...
As you see Wolfdale performed the best in Crysis, and Phenom was the slowest
Source
PCGH - Test: Duell der Dual-Cores: Phenom X2 vs. Penryn Dual-Core vs. Core 2 Duo