We've seen AMD release their dual-GPU beast, the Radeon HD 7990 today, but NVIDIA don't want the spotlight to be formed directly on their competitor so they've chosen today to release a new set of drivers for their GeForce GPUs.
The GeForce 320.00 drivers arrive in beta form, and offer the usual performance improvements and bug fixes over the previous GeForce 314.22 WHQL drivers. There is some interesting support baked in, too, for the GeForce 800 series. If you have the latest GPU from NVIDIA, there's a 20% improvement for Dirt: Showdown and Tomb Raider.
A 6% to 7% improvement is offered for StarCraft II, Sniper Elite V2, Far Cry 3, F1 2012, and Metro 2033. The new GeForce 320.00 beta drivers also note "This is the GeForce Game Ready driver for Dead Island: Riptide, Neverwinter, and Star Trek". You can get the new GeForce 320.00 beta drivers here.