I have a Asus 1440p monitor with GSYNC and would like to buy additional monitors to build a 3 screen setup. I use Nvidia 1070 + 980 cards. What are the requirements to use Nvidia surround? Can I use monitors with different resolutions and refresh rates? I would like to add 2 24 1080p inch monitors on the side of my 27 1440p. Does it work? Can I use both cards or I need to connect all to same card?