[citation][nom]CaesarRoyale[/nom]That's gonna require some serious graphics horsepower if you want to game on that screen in 4K! I don't even know how possible that is... With a quad SLI or Crossfire setup, can you go 4K res?[/citation]
An AMD eye-finity setup can also be over 8 million pixels at 5760 x 1200, so yeah, I'd say that the last couple of generations of video cards could handle a monitor this size with no problems. That is, if someone decided to support the non-standard 3840 x 2160 resolution in a game, but the hardware could handle it just fine.