I'm almost definitely about to buy a Radeon HD 7850 and right now I just have a Core 2 Duo cpu. Would the bottleneck be signigicant? If so, I was wondering what processors work well with the 7850 to reduce bottleneck. It sort of crossed my mind to buy an APU, but I didn't know if it was worth it. Overall, I'm looking for something to work well with the 7850, probably something like a quad-core for around $100-150. For reference, I have 6gb of ram and a 750w psu.