NVIDIA has uploaded the GeForce 326.80 beta driver, you can download it over here. This driver is the recommended driver for Splinter Cell: Blacklist, as well as for Windows 8.1 Preview.
This Game Ready driver offers the best gaming experience for Splinter Cell: Blacklist and is also a recommended driver update for the Windows 8.1 Preview. GeForce R326 drivers also provide performance increases for a variety of different games.
New in GeForce R326 Drivers
Performance Boost – Increases performance by up to 19% for GeForce 400/500/600/700 series GPUs in several PC games vs. GeForce 320.49 WHQL-certified drivers. Results will vary depending on your GPU and system configuration. Here is one example of measured gains:
GeForce GTX 770:
Up to 15% in Dirt: Showdown
Up to 6% in Tomb Raider
GeForce GTX 770 SLI:
Up to 19% in Dirt: Showdown
Up to 11% in F1 2012
Added SLI profile for Spinter Cell: Blacklist
Added SLI profile for Batman: Arkham Origins
Enables GeForce to SHIELD streaming. Learn more here.