The Ultra HD P2815Q is coming in at a startlingly low price. Current 4K monitors are very expensive and, just yesterday, Sony's Kaz Hirai warned that it was going to take years for these ultra high-definition displays to be a commonplace sight. Jason Evangelho, for Forbes:
The P2815Q will have a full 3840 x 2160 4K resolution and launch globally on January 23. Dell hasn’t yet discussed things like refresh rate or range of inputs (I’m sure DisplayPort is a given), but they do promise the same “screen performance” as the new UltraSharp 32 and UltraSharp 24 Ultra HD monitors. That’s certainly encouraging since their UltraSharp line is normally a cut above when it comes to professional displays.
A big potential fail lurks in those missing details, particularly the possibility of a 30 fps refresh rate instead of the usual 60 fps or more. There is already a cheap 4K panel like that for $500 at Amazon, from Seiki Digital, which suggests that anyone could slap their logo on it if they really wanted to. It would be risky to jump the 4K gun with a model that could not be used for "serious" gaming or video editing.