NVIDIA R314.14 Beta for Windows
NVIDIA has published a new set of beta graphics drivers for all GeForce cards. R314.14 brings a performance boost up to 23% (Sniper Elite V2) for GeForce GTX 400/500/600.
R314.14 (based on r313_00-236 dev branch) is an OpenGL 4.3 driver and exposes 298 extensions (GL=272 WGL=26). The complete list of all OpenGL extensions is available HERE (R313.95).