Update graphic driver on Bootcamp (Windows 7), iMac late 2013

Hi guys,

I googled a lot but there are way to many possible solutions...

I bought a late iMac 27" with a NVIDIA GeForce GTX 775M 2GB. I installed Windows 7 (64Bit) for gaming purposes. Now I'd like to update the graphics driver but am not sure how to do it.

--> is it possible to update them directly via the official NVIDIA drivers or do I need some "special" drivers from Apple?

I don't want to mess up the boot camp installation since installing windows and especially doing all the windows-updates takes forever and a day...

thanks a lot for your help!