Trying to help a friend out. He has a i5 2320 and wants a new graphics card budget is upto £300. Was going to suggest upto a 770gtx but not sure if he may see some bottlenecks from the cpu. Would he be better off with say a 760gtx or a 670gtx. Wants to stay with invidia. Was going to suggest that he looks out for an i5 2500k second hand and then oc for better performance.