This question is nonsensical. It asks how something is different from itself. This is a violation of the reflexive identity (i.e. every singular definable object is exactly the same as itself).
Article II. Each state retains its sovereignty, freedom, and independence, and every power, jurisdiction, and right which is not by this confederation expressly delegated to the United States in...
It set up a stable government with some stability and organization, it set up a system of agencies to deal with foreign affairs, and it gave the government the ability to coin money.