When you play the latest blockbuster games at 1920x1080 on your top-end PC, you’re not getting the complete experience. Most developers create textures and other assets at much higher resolutions and compress them when playing at lower screen resolutions. When you game on a 4K monitor you see all the detail. All the nuance.
The extra detail is stunning, but the biggest overall benefit of 4K is the massive increase in Pixels Per Degree of Vision (PPD). 4K, 31.5-inch, 3840x2160 monitors crank the PPD all the way up to an unprecedented 35.6, increasing the visible quality of the screen by 84% when compared to a 27-inch, 1920x1080 screen. This tight grouping of pixels makes textures appear more realistic, text, numbers, and HUDs amazingly sharp and defined, and individual pixels nearly indistinguishable. Scientifically, your eyes begin to believe that the game rendered on-screen is as lifelike as the real world, drawing you in and immersing you like never before.