Only 1.33% of steam users play in 4k

[Mummelmann]

Not surprised, it takes a really heavy rig to pull off proper 4k. And by proper 4k, I mean the works, most PC enthusiasts won't simply crank up the resolution and then be satisfied with anything less than ultra on PP effects and lightning/filtering etc. I takes an immense amount of power to play 4k at 60fps+ with proper effects enabled. Thinking about the next gen of consoles supposedly offering real 4k gaming is laughable, it'll be many years before anything remotely resembling a mainstream device will be able to pull of real 4k games and gaming.