We don't use them for gaming, just general computing. Bought 3 to go with a new HP computer during the back-to-school sale. Haven't had any issues, They have DP and HDMI inputs and also have the VESA mount. Had them about 5 months now and have no complaints.
The x24i monitor is easy to set up, offers flexible connectivity and is easy to switch between more than one source, and the picture is crisp, clear & bright. This is an excellent monitor for work, games, and video.