http://www.pcgamer.com/2013/03/25/nvidia-geforce-31422-drivers/

As it typically does for a major game launch, Nvidia has updated its GeForce card drivers to 314.22 for boosts in performance and stability. It claims recent titans BioShock Infinite and Tomb Raider both get a significant bump in frames-per-second, with the former increasing by 41 percent and the latter by an astonishing 71 percent.

Nvidia’s article provides benchmark results and pretty green graph bars to scrutinize. Though the company’s test hardware was an Intel i7-3960X and a GTX 680—a beefy setup most definitely on the high-end of priciness—Nvidia says the improvements apply to most other cards in the GTX family.

Other frame gains include an extra 30 percent for Civilization 5, 22 percent for Sniper Elite V2, and 12 percent for Sleeping Dogs. Smaller boosts are given to Batman: Arkham City, Battlefield 3, Borderlands 2, Black Ops 2, and Skyrim. Really, if you’re playing nearly any graphics-heavy game from the past few years, and you’re a GeForce user, pick up the drivers on the official website or through the useful GeForce Experience tool. It’s green across the board.

http://www.pcgamer.com/2013/03/07/tomb-raiders-geforce-performance-issues-being-looked-at-by-nvidia-and-crystal-dynamics/