The new 260.52 Nvidia drivers come with a host of improvements, giving a boost to the other 400 series GPUs too, and a new driver installer that looks suspiciously like Catalyst...
Still, the rock-solid overclock in the Asus TOP gives it a significant boost over the vanilla GTS 450 as you can plainly see from the 1,680 x 1,050 figures below.
Predictably the 2,560 x 1,600 scores are far lower, but then that isn't where this card is pointing its arsenal at.
What it is targetting though is the HD 5770 and the overclocked Asus card has it beat in almost all the benchmarks.
Things aren't so rosy for the vanilla GTS 450 though, which does fall short against MSI's overclocked HD 5770.
DX11 gaming performance
DX10 gaming performance