i imagine does using 1920x1080 screen make difference in video sharpness, because i've been using 1366x768 screen to watch youtube video and i don't really like it because video looks really scratched, i could only see video that looks like real hd only when i set the video quality to 4k and 8k, but the problem is no way i watch 4k video because it only available on some video, especially with 8k, it took so long to load up and it couldn't run smoothly and video in 8k is not much