Like most of the other best Samsung TVs, the new 98-inch QN900C has Samsung’s Gaming Hub and Motion Xcelerator Pro. That delivers 4K at up to 120Hz, rising to 144Hz with compatible PCs. There’s also support for AMD FreeSync Premium Pro as well as NVIDIA G-Sync like most of the best gaming TVs have.
It’ll be a long time before anything can reasonably generate that kind of resolution. Streaming is almost definitely out, and the GPU required to run a game at that at anything but minimum settings…
That said, gotta look to the future I guess. Gotta wonder if there’s any tangible benefit to going over 4K, unless you’re nose is up against the screen anyway.