The Radeon HD 4870 X2 performance continued to improve as we threw more CPU power at it, with the fastest configuration being the Core 2 Quad Q9650 at 3.60GHz, which delivered 140fps. The Q9650 was also the fastest processor tested at its default frequency, rendering 133fps, followed by the Q6600 with 119fps. The Phenom X4 9950 averaged 115fps, and the 9850 managed 113fps.The Athlon64 X2 6400+ clocked at 3.46GHz averaged just 84fps, matching the performance of the Core 2 Duo E6550 at just 2.0GHz!