Resolution

Resolution most often refers to the visible dimensions of a game, video, or other visual asset. Resolution is expressed in the number of pixels, by width and height, used to comprise the image or visual element. e.g: 800 x 600 is 480,000 pixels. The higher quantity of pixels provides a larger potential level of detail to be displayed, though similarly will increase the file size of the associated element.

Common Resolution shorthands

Standard Definition (SD): 720 x 480 or 720 x 576
High Definition (720p): 1280 x 720
High Definition (HD): 1920 x 1080
Ultra High Definition (4k): 3840 x 2160
8x11inch/21x29.7cm Paper (A4) at 300PPI: 2480 x 3508
11.7x16.5in/29.7x42cm Poster Style (A3) at 300PPI: 3508 x 4961