The most resolution of the 34UC88-B is 2160p. That's over two times the resolution of a 1080p LCD screen, which is the most common resolution. 1080p is also found on this flatpanel monitor.
This PC monitor's resolution (2160p) is actually the best resolution amongst all similar spec PC screens that have been available for around the same time as the 34UC88-B.
The worst resolution amongst comparable types of PC monitor is 480p.