These drivers are not so impressive. I made tests with 14.9 and 14.7.rc3 drivers in some bench games installed on my pc (Hitman Absolution,Sniper Elite v2,Sleeping Dogs,Mafia II,Gta IV). I have some games with no fps increase (Sniper v2,Mafia II,SleepDogs),and in Hitman i have -12fps (!!!).The games are tested on high settings and maxim fps are counted. Actually no problems with these 14.9 drivers,but i will test more games(new one) soon. Edit: many users have trouble with drivers or programs.maybe some know others maybe not. But if you dont uninstall with DDU and after that clean registry with Ccleaner or Tuneup regcleaner 2014 you do nothing.You will be amazed after run Tuneup Registry Cleaner and Tuneup Registry Defrag,the entire registry database will have 10-20% less Mb.So after this you will have much better windows. And imho the best drivers are beta drivers.13.12,14.4 Whql are not.