Unfortunately, many laptop listings don’t make it easy to pinpoint how great its picture quality is at a glance as if you were trying to buy a television, but here’s a handy cheat sheet to help compare laptop resolutions:3840 x 2560 = 4K Ultra High Definition. Gorgeous, and great for playing high-end video games and movies published in this format.1920 x 1080 = Full HD. Fantastic for watching Blu-ray movies and playing video games.1600 x 900 = HD+. A good fit for streaming video, simple video games, and DVDs.1366 x 768 = HD. Good enough for browsing the internet, word processing programs, and simple laptop tasks.