What is the difference between procedure and package?

1)Package name should be unique but procedures with same names across packages can exist.
2) support for encapsulation.
3)Break the dependency chain.
4)Package : Package is group of procedure, fuctions and data types ete. The package is faster as compared to procedure or function. The package will be loaded on the memory when first execution and will be available for subsequent calls, this way package is faster compared to procedure and functions.