Under the name 84.21, the new driver brings improvements in PureVideo codec (H.264 acceleration for GeForce 6/7) and serious improvement in performance in the favourite game of most nV execs - F.E.A.R. The performance increase is similar to the one ATI experienced back at the time of X1800 launch - with 84.21, you get around 30-40% when enabling anti aliasing. The most moderate performance improvement, 17% was noted on a 6600 DDR2 card, while 7800GTX 256MB now finally has a playable framerate when 4xAA is enabled, giving a 38% performance boost.