Hello, I put information from my live experience with various combination of mac os x and video cards:
Mac OS X 10.6.8: EVGA GTX 285 for mac, Ati 5770 for mac, Ati 5790 for mac,
Mac OS X 10.7.5: QUADRO 4000 for mac, GT120 no special for mac, GTX 680 no special for mac, GTX560Ti no special for mac, GTX650 no special for mac,
Mac OS X 10.8.5: Ati 7950 ()
Mac OS X 10.9.4: in research
As I know video cards for mac os x must have dual bios for working with it. But when I start to combine various card I faced with fenoenom when the graphics card works without dual bios or specifically for Mac OS stitched and works fine.
may be some one has experience too with other cards and mac os x version, and can add information.