I am currently using an AMD 7970 GHZ and can get my hands on a 780 for around $400 - $500 i was wondering if when i change the cards are their any steps i need to take like uninstalling drivers or other things.
I didn't bother uninstalling the AMD drivers when I swapped out a 7790 for a 560Ti and the rig works perfectly, so long as the OP isn't using Vista all they need to do is slap the new card in and install the drivers for it.