I went through and read the whole thing, and it really doesn't. It only looks like it does in the 2560x1600 resolution category where everything is GPU limited, or games like metro where its a GPU limitation across the board. They even say in the conclusion:
If you stick to just one GPU really, the faster Phenom II processor and the AMD FX 8150 will be sufficient however you can expect slightly slower framerates until you hit the higher monitor resolutions. The latest Intel processor will give you a lot more underlying performance, and that's going to help you our in minimum frame rates as well. We do have to mention clearly that we measure in average framerates, so in the lower framerate spectrum a slower CPU can make a difference.
That being said, I wonder how an X6 would have stacked up.