1. Different resolutions: In short, 1080p refers to the resolution of 1920*1080 =2073600, that is, the resolution is 2073600, that is, about 2million pixels, so generally 2million pixels are also called 1080p; 720p refers to the resolution of 1280*720=921600, that is, the resolution is 921600, that is, about 920000 pixels, 921600 is close to 1million pixels, where p is the abbreviation of progressive scanning;
2. Different pixels: The core difference between 1080p and 720p is not only the resolution of the surface, but also the number of pixels. This difference also brings differences in several other aspects, including: 1080p consumes more power than 720p screen; 1080p screens require more computing power than 720p screens to support their operation, that is, higher requirements for CPU;
3. 1080p video is obviously clearer than 720p video: 1080p means that no matter how large your screen is, its width is 1080 pixels; 720p means that no matter how large the screen is, its width is 720 pixels. This can be understood as that the same video has different image quality and definition when it is put on different sizes of screens. The biggest difference between 1080p and 720p is that 1080p has more pixels on the same screen size, that is, 1080p has a pixel density greater than 720p; A 1080p video has a higher resolution than a 720p video.
