What is the different from hum burger and beef burger?

A hamburger (or burger for short) is a food consisting of fillings —usually a patty of ground meat, typically beef—placed inside a sliced bun or bread roll. Hamburgers are often served with cheese, lettuce, tomato, onion, pickles, bacon, or chilis; condiments such as ketchup, mustard, mayonnaise, relish etc.

A beef burger is simply a hamburger that has a beef patty as its main ingredient.