I have gotten excellent results overclocking my i5-2500k from 3.3 to 4.5ghz. I'd say I have almost double the FPS on high / ultra settings.
My current issue is that anytime I'm playing online, my FPS starts out good. However, after a while (30min to an hour), it will start to spike up and down making the game almost unplayable. :( I'd prefer a stable 20fps than getting spikes of 10/15 from 30+
Not sure what to do... :confused: