OS X Nvidia iMac late 2012 OS X drivers

[zerozoneice]

21.5 iMac here with i5@2.9 and GT650M. I seem to get strange gfx corruption of certain 3D models in games like Flatout 2 for example. With an older mid-2011 iMac (Radeon 6750M) there was no such thing.

Strangely after a while playing there's no corruption.

Any way to upgrade native drivers for OS X 10.8.4?

 

[bist]

You can try the web drivers from Nvidia: They're here

Edit: They may, or may not, work with the builtin 650M.