Dual Mode: 4K Uhd 240Hz or Full Hd 480HzLG UltraGear Oled is a Vesa Certified Dual Mode gaming monitor. This innovation allows gamers to experience graphically rich, story-driven games in 4K/Uhd at up to 240Hz or switch to Full Hd at up to 480Hz for fast-paced Fps, Moba or racing games via hotkey.Leave Lag Behind with 0.03ms Response TimeEnjoy smoother scenes with less lag or ghosting thanks to Lg UltraGear Oled's nearly instantaneous 0.03ms (GtG) response time.nvidia G-sync Compatible and Amd FreeSync Premium ProOfficially validated by Nvidia as G-sync Compatible and equipped with Amd FreeSync Premium Pro means this UltraGear provides smooth, fast action that reduces screen tearing and stutter. Never miss a frame of the action as you clinch your victories.