I am gaming CS:GO with a BenQ W1070 at 1080p and 60hz.
What you need to look at is:
-Input lag (lower the better)
-Refresh rate (60hz is ok, higher is better)
-Resolution (720p is ok, 1080p / 1920x1080 is great, higher would be awesome)
Kind regards,
-Projector Noob