Graphics Card Trouble, Need Insight!

[Asmodeus]

There is not much to do to increase performance keep drivers updated or use the ones that work best for the game, make sure you got 8gb ram other than that upgrade cpu/gpu depending on which one is behind the other.

Seriously though I am playing on xfired 5770 hard preset settings, and yes they are running at max and sound like turbines form a jet plane lol, and everything is fine so you should be fine too dipping down to 25/30 fps during fates in in crowded areas is not such a big deal. You need to decide if you can play like this or fork out some cash.

Personally I think you should not have went from a 5770 to a 7850 but should have got a gtx760 instead. Dunno what your cpu is but you could try OC but then depends on what you have.

In posts like this you need to give more info or when we try to help it is like peeing into the wind.