NVIDIA Forceware 177 vs 178 comparison
 

From the results seen above we can conclude that the first GeForce 178 series drivers don't bring any significant performance improvements over the last GeForce 177.92. Still, the GeForce 178.15 did one-up its competitors in 3DMark Vantage and Devil May Cry 4 so there is a hint of potential but we'll probably have to wait for the next big bang (insert winking smiley here) in order to get those extra frames out of our GeForce 8, 9, GTX 200, GTS 150, GT 130, GT120 etc cards.

http://www.tcmagazine.com/articles.p...howarticle=245