As for saying what framerate you can expect, that's nearly impossible to say. There are just too many variables to be able to say "you'll get 80 fps with that build". What I can say is, you'll probably not have any issues running any DLC or graphic mods. My FX8350 & HD7970 runs the game with a 3rd party HD texture mod and an ENB without issues. Since Skyrim is largely processor bound, and much prefers Intel chips over AMD, you probably won't have any problems with that setup.