Posting in the ROG forum, I would think you want a gaming monitor.
Things to consider
Panel type
TN - High refresh rate, poor viewing angles, colors not as good as VA or IPS panels.
VA - Better color reproduction than TN, excellent contrast ratio, can be high refresh rate, has higher response time than TN, VA is basically a compromise between TN and IPS.
IPS - Excellent color reproduction and viewing angles, generally has a higher response time than VA or TN panels
Nano IPS - New and better color reproduction than IPS - An IPS monitor with a high refresh rate and low response time will be best, but will be the most expensive.
Refresh Rate - the higher the refresh rate the smoother your gameplay with no motion blur or screen tearing as long as you stay at or below the refresh rate.
Response time - For gaming, the lower the better. Response time is how fast your monitor reacts to mouse movement.
Connectivity - Preferably displayport
Curved or Flat
Aspect Ratio
Tell us a little bit about your pc. Your gpu is a big factor in determining which monitor to choose, do you plan on upgrading sometime in the near future?