Help GTX 570 setup in mountain lion please. #GPU

Hello, first sorry for my English, I'm Spanish and I am using a translator.







My hardware is this:







- GA-Z68X-UD3H-B3



- Intel i5 2500K



- NVidia GTX 570 (Evga)







I installed mountain lion but I want to know which is the correct way to install the graphics card correctly to reach full potential.