http://forums.nvidia.com/index.php?showtopic=225583&view=findpost&p=1386584
As expected the 500 & 400 series will not get official drivers until April but then we get most of the new non Kepler features anyway. So tinker away on these for now at your own risk
http://forums.nvidia.com/index.php?showtopic=225583&view=findpost&p=1386584
"FXAA, Adaptive VSYNC, and many of the Surround enhancements will be made available for Fermi-based products in the upcoming UDA driver.
GPU Boost and TXAA are Kepler specific. "
As expected the 500 & 400 series will not get official drivers until April but then we get most of the new non Kepler features anyway. So tinker away on these for now at your own risk

http://forums.nvidia.com/index.php?showtopic=225583&view=findpost&p=1386584
"FXAA, Adaptive VSYNC, and many of the Surround enhancements will be made available for Fermi-based products in the upcoming UDA driver.
GPU Boost and TXAA are Kepler specific. "