1. Unless one the DisplayPort cable you have used in the Monitor menu to switch DisplayPort 1.2 (default DisplayPort 1.1) otherwise one has no 60Hz
2. If like me you use multiple monitors, this monitor must be running Windows 7 the primary monitor, then you have only fullscreen.
3. If someone is planning on the monitor in windowed mode to play games that you can forget the same, due to the extremely high resolution is 2560 * 1600 even tiny, because the monitor so basically has only 28 inches. Either fullscreen or not at all.
4 games where you control the mouse and not the camera (ie all the games where you have to click), you have the problem that even a further distance has to be covered by the high resolution when you're used to either change the mouse speed or a few days acclimatization invest.
5. The Windows icons and windows are full resolution really very small, this can be seen in the Control Panel to change the icon size to Large, the text size, I have changed to medium, otherwise everything is barely legible.
Conclusion: Top 4K monitor, ideal for people want to get the number of windows on a screen, to recommend for gaming only in full screen mode (with suitable computer and high-end graphics card (or lower resolution))