It looks like NVIDIA are making major enhancements to their GeForce drivers, "An essential upgrade for all GeForce users, these drivers enable NVIDIA FXAA, NVIDIA Adaptive VSync, and NVIDIA Frame Rate Target on all GeForce 8-series and later GPUs and also add new NVIDIA Surround features for all Surround-capable GPUs. Also included are numerous performance improvements for top titles, new SLI profiles, and new 3D Vision profiles." In particular, Skyrim performance has increased by up to 20%, which will be very welcome for systems rendering at marginal frame rates. NVIDIA explain how Adaptive VSync works, plus they have published various interesting performance charts, including for the Skyrim performance boost, but they have all been done on a GTX 580, not a GTX 680 for some reason. The drivers are available for download now at the link below.