Two cameras have the same resolution, frame rate and scene monitored but camera A consumes half the bandwidth than camera B. Is Camera A better? You cannot tell until you first check / compare compression levels.
It can be hard to determine which camera's video quality is "best" and whose bandwidth consumption is really lower, as manufacturer compression settings vary and are not comparable. However, you can accurately measure H.264 and even H.265 compression levels with a little skill and some available tools. In this tutorial, we explain how to do so.
A pre-requisite for this post is our video quality/compression tutorial.