Overclocking not functioning properly with new drivers

I recently installed windows 8.1 for a better frame rate for games, therefore I could not use the 320.49 Nvidia driver anymore, since it is not compatible with Windows 8.1. My graphics card is GT650M and it works fine with the Afterburner in 320.49 driver, but not 327.20 and 331.40. It locks GPU frequency to 835 MHz and prevents the intrinsic "Nvidia boost" which boosts up the frequency to 900+MHz in gaming. In the 320.49 driver, however, both the Afterburner overclock and the automatic overclock function perfectly, generating 970MHz regular frequency and 1050+MHz in games. Since the only change was the driver, I have to ask whether the Afterburner overclocking supports any newer driver from 320.49. If not, then I should say that it is not compatible with Windows 8.1.

 

....well, i have been using it and it was working just fine for several years on my mobile graphics cards

 

System requirements:
***61623; Windows XP, Windows Vista, Windows 7 or Windows 8 (both x86 and x64 versions) with full administrative rights
***61623; NVIDIA GeForce 6 or newer series graphics card with NVIDIA ForceWare 96.xx or higher drivers 1
***61623; AMD RADEON HD 2000 or newer series graphics card with AMD Catalyst 9.3 or higher drivers 2
***61623; Any graphics card can be used to start application in limited functionality mode3

1 Integrated and mobile graphics cards are not officially supported

 

with the newly released WHQL driver it works again