Would this make a lot of difference? To be honest I'm not sure if I should be very excited, as I don't really know how much my Intel 4400 would help my M820, Would there be a noticeable difference in performance?
Wait. So does that mean that with DirectX 12 we will be able to literally download more performance? This sounds great for laptop users and whatnot. In your case, there probably wouldn't be a drastic change but maybe some frames here and there.