Hi, long story short, I bought a samsung 4k 40" TV just to try it out and it looked great, however, my current Mac Pro is using a Gtx 680, so it doesn't have HDMI 2.0 like the newer 900 series does, thus I'm stuck at 24hz. My question is: has anyone tried to run a 4k TV over HDMI 2.0 since TV's don't usually have display port, with Nvidia's newer 900 series. Thanks. I don't want to end up spending over $200-300 to get a new gpu to find out it can't drive it at 60Hz. Thanks.