I have a amd fx-6100 cpu and a msi 6700. Im looking for an upgrade for my gpu and considering the Sapphire 260x or the XFX 7850. Here, the 260x i way cheaper (like 60 dollars!) but i could buy the 7850 anyways if the difference in fps i high... my concern is if the 7850 will bottleneck with my CPU, because i wont be upgrading the cpu in some time.