Updated: 10/11/2017 by Computer Hope

4:3 is the aspect ratio found with traditional CRT (cathode ray tube) monitors and TVs. As most monitors have moved to some form of LCD (liquid-crystal display), this aspect ratio has become much less popular, replaced by the wider 16:9 aspect ratio. Below is a general visual comparison between the 16:9 and 4:3 aspect ratios.

Aspect ratio example

16:9, Aspect ratio, Video terms