The Great Compromise (decided between the Virginia Plan and the New Jersey Plan) and the Three Fifths Compromise (3/5's of slaves are counted in the population [due to the Great Compromise, the number of seats in Congress a state has depends on their population]) led to the US Constitution.
The Connecticut Compromise is often called the Great Compromise of 1787. This led to the bicameral Congress of the United States where the House of Representatives would work on behalf of local constituencies, and the Senate would work on behalf of the states.
The benefits of the Great Compromise led to more equal representation for each state. It gave the smaller states an equal voice to the larger states. However, it allowed for the passage of the Three-Fifths Compromise, which complicated the entire process.
The Great Compromise of 1787 (or Sherman's Compromise) was proposed by Roger Sherman. The Compromise was an agreement that defined the representation of each state in Congress/the House of Representatives.