4k Pc Monitor

So been looking at a 4k monitor

but checking the specs of my pc i get
DisplayPort resolution: 2560 x 1600 at 60Hz
DVI (dual-link) resolution: 2560 x 1600 x 32bpp at 60Hz
HDMI resolution: 4096 x 2160

Now im after some clever bbs help

The monitor i have seen runs 4k @ 3840 x 2160.

But im confused as i can run hdmi @ 4096 x 2160 but would this be 4k as i can only run DisplayPort resolution: 2560 x 1600 which i assume is 4k :confused:

The monitor i am looking at is To view the link you have to Register or Login