

Here is a basic table so you can see the differences between the various sized motherboards. Having more airflow through your case is the most powerful first step you can take in order to keep your PC cool. More airflow means that you are able to reduce the internal temperature with greater ease so the rest of your components can do a much more effective job of maintaining their desired temperature. By being able to add more fans, you can drastically increase the amount of air that you can pass through your case. We all need the internal temperature of our computer to remain cool.

Sizes are a rough comparison and vary depending on the manufacturer. Here is a comparison chart so you can see the differences in height: The first major difference is the physical size.
COMPUTER TOWER FULL
What is better, mid tower or full tower?.

