Depends what you are aiming for.
If your ok running it with lower settings, you should be good. (Probably same as or close to F3s.)
My concern is the CPU at 2.0Ghz. I OC'd mine recently by 1Ghz and it netted me 15+ FPS overall. Just goes to show it's heavily CPU dependent.
But if F3 works, FNV should, if not at a little less detail. (Maybe not, I'm guessing.)