There's so many games coming out in these coming weeks, including the just-released Crysis 3. NVIDIA are now out of the gate with new beta drivers, the GeForce 314.14 beta drivers. The new beta drivers include improved performance and compatibility for multiple titles.
This includes Tomb Raider, which is out any minute, SimCity due a few minutes later, StarCraft II: Heart of the Swarm (March 12) and Resident Evil 6 (March 22). If you want to hit up Hawken with hardware-accelerated PhysX effects when it drops later this week, you'll need these new beta drivers. NVIDIA have also said there are multiple performance increases for those of you running GeForce GTX 680 GPUs, and again when they're in SLI - more numbers here:
GeForce GTX 680:
3.1% in Just Cause 2 at 1920x1080/DX10/4xMSAA
9.1% in Sleeping Dogs at 2560x1600/Extreme/High AA
21.1% in Sniper Elite V2 at 1920x1080/Ultra/High AA
GeForce GTX 680 SLI:
4.3% in Batman: Arkham City at 1920x1080/Very High/Tess. High/FXAA High
3.8% in Battlefield 3 at 2560x1600/Ultra/4xMSAA
5.3% in Call of Duty: Black Ops II at 1920x1080/Max/4xMSAA
4.7% in Deus Ex: Human Revolution at 1920x1080/Max DX11/FXAA High
4.3% in Just Cause 2 at 1920x1080/Max DX10/8xMSAA
14.4% in Sleeping Dogs at 1920x1080/Extreme/High AA
21.4% in Sniper Elite V2 at 2560x1600/High/High AA
3.7% in The Chronicles of Riddick: Assault on Dark Athena at 1920x1080/Max/4xMSAA.
3.2% in The Elder Scrolls V: Skyrim at 1920x1080/Ultra/8xMSAA
You can grab the new drivers here.