Does anybody know if any graphic cards (made either by nVidia or ATI) that have Dual Link capabilities are 10 bit enabled?

No nvidia or ATI DVI outputs are 10bit. At the moment, only Quadro cards with Displayport are capable of 10bit from nvidia. From ATI, I read about someone using a 4870 which has a DisplayPort to get 10bit but he was on a Mac (the PC version might have different outputs and use different drivers).

No nvidia or ATI DVI outputs are 10bit. At the moment, only Quadro cards with Displayport are capable of 10bit from nvidia. From ATI, I read about someone using a 4870 which has a DisplayPort to get 10bit but he was on a Mac (the PC version might have different outputs and use different drivers).

Funny you mentioned that about the ATI 4870; I was reading on the RED user boards that the 10bit out via the DP was do-able on the Windows side but not the Mac. That's just what I read so I don't know if that's 100% true or it was just the poster's assumption. Seems like it would work on both OS's if it was enabled.