It's all well and good buying a 4K 120Hz gaming monitor if you're ... The other option, for the more competitive gamer, is a 1080p 240Hz gaming monitor. You'll be choosing speed over fidelity ...
1080p alternatives will better fit the brief. 4K monitors can pack substantially more pixels (3840 x 2160) compared to 1440p (2560 x 1440), resulting in sharper visuals and an extra layer of clarity.