I just installed this driver and they've added a new feature called DSR (Dynamic Super Resolution). It took me a bit to get on to how to use it but it's easy. In manage 3d settings you can choose DSR 1.20 and up to 4.0 x native resolution. So if you have a 1080p monitor you can game at 4k resolution. When I first saw this I was like what? But it's true.

My monitors native resolution is 2560 x 1600 and if I do 4x native resolution it goes to 5120 x 3200, and that goes for games too. Only problem is three 680's can't handle it. I think I'll need about 10 of em' to game at 5120 x 3200 resolution. It's a cool feature and I like it a lot. This just might make me have to upgrade the gpu department.

Give it a try if you haven't yet.