3 ms·Are 120 Hz 4k or 5k external displays common?by copperx 4y agoAre 120 Hz 4k or 5k external displays common?hit8run 4y ago144hz 4K is common yes. 5k upwards there is nothing above 60hz.peferron 4y agoIt's not much, but there's a LG 5k2k at 72 Hz.