New NVIDIA Drivers

Pretty good:

Boosts performance in numerous 3D applications. The following are some examples of improvements measured with Release 180 WHQL drivers vs. Release 178 WHQL drivers (results will vary depending on your GPU, system configuration, and game settings):
Up to 10% performance increase in 3DMark Vantage (performance preset)
Up to 13% performance increase in Assassin's Creed
Up to 13% performance increase in BioShock
Up to 15% performance increase in Company of Heroes: Opposing Fronts
Up to 10% performance increase in Crysis Warhead
Up to 25% performance increase in Devil May Cry 4
Up to 38% performance increase in Far Cry 2
Up to 18% performance increase in Race Driver: GRID
Up to 80% performance increase in Lost Planet: Colonies
Up to 18% performance increase in World of Conflict

Link