I have a GTX 670 and when I first played Arkham City with it I could play at max settings with no problems. It has how be quite a while since I last played and with both the new 327.23 driver and the previous 320.49 drivers it has been very sluggish forcing me to turn off physx and directx 11 features to be able to play.
So which older driver would you recommend to use with a GTX 670 for a smooth framerate at max settings?