In this first graph, we are comparing the AMD-FX8150 to an Intel Core i7 2600K and 2500K at stock, default settings. There were only very small differences in performance, with the Intel Core i7 2500K delivering the lowest performance, but only by a slim margin. Technically speaking, the Intel Core i7 2600K was 3.8% faster than the AMD FX-8150. However, with differences this small it was not detectable in actual gameplay, and meant nothing to the gaming performance we experience on any of these three CPUs.
Interestingly, when we overclocked the CPUs there was a slight shift with the AMD FX-8150 coming out technically faster. The difference in this case was 5.5%, which again wasn't anything we could actually feel or detect while we were playing the game. When it comes down to it, for the Open Beta, all three CPUs performed similarly, and we couldn't tell any difference between them in this game. If you put all three systems side-by-side, you would not be able to tell the difference. (Source