Hello everybody. Currently I have an AMD Dual core 3.0ghz with a gtx 260. I really want to upgrade to a gtx 460 but from what I heard a dual core will bottleneck a high end video card. I am not really looking to upgrade my processor because I mainly play games. The video card im looking to buy is a GeForce GTX 460 Fermi Hawk OC 780MHZ 1GB GDDR5. Any advice would be appreciated..