Can i mine it with nvidia?
Yup, and you can beat the AMDs easily. I have 4gb Gtx 680, I can squeeze 4.5Mh/s easily. The newer cards have much higher hashrates, you can check them from the cudaminer topic:
https://bitcointalk.org/index.php?topic=167229.0ya but honestly that does not mean anything.
what matters is what the performance is like and what does it say on the pools..
Well then nice, I have 9.69 Mh/s

I'm getting 4,5 Mh/s reported by the pool, on average.