The larger 720p screen will have less detail, spread across a bigger space. The 1080p screen has double the detail, in a smaller space, and therefore will look much sharper and more beautiful. Check the following image for an example of this concept. Do bear in mind that the image below is a bit exaggerated.Is 720p better than 1080p?
Sometimes you may even notice a 720p screen seeming “better” than a 1080p screen; the reason is usually related to the bandwidth. The simplest explanation for this is that the 720p needs to be less compressed on the monitor since it has fewer pixels than the 1080p resolution. How Much Are 720p And 1080p Display TVs?How big is the difference between 720p and 1080p?
The difference between the two is that 720p has 720 lines of vertical resolution, while 1080p has 1080 lines, that is 50% more lines in favor of 1080p. Given a typical aspect ratio of 16:9 this means that 720p (1280×720 pixels, or 0.9 megapixels) has a surface area that’s only 44% of the surface area for 1080p (1920×1080 pixels, or 2 megapixels).