Review on Dell U2720QM UltraSharp Ultra Thin DisplayPort 60Hz: A High-Performance 4K Monitor by Xavier Rebel

Outstanding picture quality. I bought this to replace an old HPRZ24W for my office. I used 42" 43UD79-B before. The U2720QM has better color gamut and black levels (not HDR) are superb compared to LG and the old HP ZR24W. The frame of the U2720QM is flimsy and toy compared to others. I have hooked this monitor up to a 15" MBP via a cheap Thunderbolt 2 DP adapter at 4K @ 60Hz with no issues in mid-2014, while I was running the HPZR24W over HDMI at 1920 x 1200 resolution @ 60Hz. The black level on the LG was like that disappointing that I decided to stop using it.