DaVinci, Premiere Pro and the Nvidia GT 120 and the quadro 4000

Hi, I have in my macpro 2008 the quadro 4000 and work fine with the adobe suite, Now I'm just starting to use and abuse DaVinci Resolve, but for the minimal expecification need other card. I going to purchase in Ebay the GT 120, this configuration works fine with boths program?
Somebody write once you installed the gt120, premiere don't recognize the quadro 4000 for the cuda and the open GL aplications. That is true?

Thanks.