[zaphoyd]

DisplayPort 1.2 can do a single stream 4k@60Hz display. The first batch of 4k displays to market used the tiling hack to get around some other limitations but these have been resolved in the most recent display iterations. ASUS PB287Q and Samsung U28D590D are both single stream 4K/60Hz using DisplayPort 1.2

[mclenithan]

Got the PB287Q here, it does do 4K/60Hz on windows but still waiting for support on Linux. Max is 30Hz on Linux as of date, (pretty sure, I googled like a mad man).