NVIDIA's beta R313 driver with performance enhancements for Crysis 3 (among other titles) has now received WHQL certification. We wouldn't expect much of a difference in performance relative to the beta drivers, but NVIDIA states they provide up to a 5% performance improvement in Crysis 3 with GTX 680. As usual, you can grab the drivers for all current desktop and mobile NVIDIA GPUs:
Desktop 314.07 Windows Vista/7/8 64-bit
Desktop 314.07 Windows Vista/7/8 32-bit
Mobile 314.07 Windows Vista/7/8 64-bit
Mobile 314.07 Windows Vista/7/8 32-bit
Thanks go as usual to reader SH SOTN for the quick notification.
Source: NVIDIA Drivers