I've only reported that new beta drivers 314.21 are available, according to the other thread where we said that 314.07 from Nvidia official site recognized our VGA (670mx), and they improve a little global performance and solve the problem/bug of tressFX in tomb raider (technology that make lara's hair more "real")
I also suggest to download and give a try to the Geforce experience program...it's still premature and has a lack of option (supported games) but i think that is graphically better organized compared to old Nvida panel (it's integrated on the same icon of the Nvidia control panel)
...obviously....IMHO