What are the 2 or 3 top video cards for $200 or less that gives the best performance in vMix? I know that there are a lot of other factors but what video card will yield best constant frame rate, recording(possibly scaled), streaming and full screen output. Our current streaming computer has 4 monitors coming from it. 1 main monitor, 1 dualhead2go into 2 different monitors and a usb to vga monitor for a powerpoint clock. We want to give the video card plenty headroom to work. What factors are most important in video cards for vMix?