The high dynamic range, ie HDR, gives the contrast the realism that comes with playing. The Acer Nitro monitor is HDR400 certified. The Acer Nitro is a 27 "gaming monitor that has a lightning-fast refresh rate of up to 240 Hz and a very low response time of just 1 ms. Playing racing, sports and other games at a fast pace will be the perfect experience for you thanks to these features. This monitor is designed especially for nVidia G-Sync technology, equipped with Acer Nitro, prevents you from compromising your gaming experience.You can forget about chopping and enjoy only a sharp image without any flaws.With GameView you can choose from three game modes: action, racing and sports, or you can create your own mode.