A:Answer If you just want 60 FPS, then virtually any 4k TV will work, including cheaper models like the Vizio V Series. You don't need HDMI 2.1 for that, only HDMI 2.0 which is standard on all modern TV's. HDMI 2.1 has enough bandwidth for 4k@120hz. Also, while this does have HDMI 2.1 ports, it's still a 60hz panel so you can't take advantage of 4k@120. You can still use VRR and such though. But if 120hz is what you're really after, then you're gonna have to go for a higher end TV that has both a 120hz panel and HDMI 2.1 like the Vizio PQ/PQX Series, Sony X900H, etc. LG's NanoCell 85 series is by far the cheapest TV in that category.