I know there are a ton of overclocking guides out there, but I didn't see that many on the 660ti PE by MSI. I recently picked up a 2nd card and am running them in SLI, which at 1080p is maxing all my games beautifully. Far Cry 3, however, when maxed out dips down to around 40fps, and I would like to achieve 60fps constant if possible. I have an overclock right now that seems to be doing okay, but I want more if possible. From what I understand the 660ti is memory limited, due to its 192 bit bus, so with stock voltage in EVGA Precision X I have the power limit at 114%, the core clock at +20mhz, and the memory clock at +620mhz for both cards. I know the memory offset seems pretty ridiculous, but testing with Furmark it increased my fps more than adjusting the core clock did. I don't really know much about overclocking GPUs though, so any advice is helpful. I would prefer not to overvolt too much though because I plan on keeping the cards for at least 3-4 more years. Thanks!