Hey guys. So, i've been playing the witcher 3 on my current 6770. Now, my pc is pretty crappy with a core 2 duo and 4gigs of ram but ive been capable of playing the game at 20-30fps on lower res. Do you think an upgrade from the hd 6770 to a 6970 for ~100€ would make a significant difference? Thanks for your help in advance.