Those HDMI 2.1 compliant AMD cards will look a lot better to gamers who play on TVs if nVidia doesn't follow suit. The current consoles, except the Xbone X (which is supposedly already HDMI 2.1 compliant, or at least mostly, and just needs a firmware update to "unlock" all of the features), won't work with the majority of HDMI 2.1 features, as the new bandwidth standard will be needed to carry HDR with 4k during VRR. I know that the VRR HDMI2.1 standard is similar to Freesync, but I don't think it's actually Freesync, just that it uses the same "idea" and is not based on hardware (GSync requires a physical module installed into the display).