3DMark & FarCry 2:

3DMark 2003 run at 1600x1200, 3DMark 2006 used defaults. As you can see, more CPU power does not really help. AMD has positioned the Triple-Cores against Intel's Dual Core offers, and as you can see in FarCry2 the third CPU does help to keep Intel in check, even when this game is clearly not optimized for AMD.