system
A chat on subreddit /r/pcmasterrace
human
I thought I was around 33% better than 1080p efficient is why playing 1080p content on a 1440p monitor looks horrible because the pixels don’t line up?
gpt
Exactly. If your screen resolution is not evenly divisible by the video/whatever resolution, the pixels must be interpolated to fit on the whole screen. 

But even if it divides evenly, Windows or your monitor still makes them blurry because of the upscaling methods.

 The method where one pixel is just doubled, tripled, etc is called "next neighbour", so if you see this you can give it a try. Doubling only works if you use a 4k monitor and a 1080p video output or a 1440p monitor and a 720p video output tho, as these are the typical video/game/monitor resolutions (but you could also use a 1080p monitor and a 540p resolution, but that would look atrociously pixelated and most games nowadays don't support perculiar small resolutions