660 ti with Resolve

Hi guys, great to meet you.

Has any one had any link with the nvidia gtx 660 Ti as a processing card with resolve 9. It looks like it could be be a good option

not the 660 but I tried out the 680 (multiple actually) on win and the mac and performance was about the same or sometimes a little less than the 580s that are in all our systems (cubix). I would gather that as the drivers get better performance would go up.

Thanks