Mine isn't all too different except I'm running a Core i7 in mine. My gfx is an EVGA GTX 670 FTW. You should run perfectly fine. I don't often go below 60 fps (vsync'd) and those places that my fps does drop a little (extremely crowded areas), I've never dropped below 30fps (sans driver crash).

Try to get an unlocked CPU. I think that MSI board includes their OC Genie which can boost your performance a little more.