GRAPHIC PROCESSING UNIT AND METHOD OF PROCESSING GRAPHIC DATA BY USING THE SAME

A method and apparatus for processing graphic data, which are capable of decreasing a bandwidth of a memory, are provided. The method of processing graphic data includes receiving first graphic data and processing the first graphic data to generate second graphic data, and storing the generated second graphic data in a first shared memory line in which a state bit is set to a first state, wherein the first shared memory line is included in a first memory line set which is a part of an n-way set associative cache structure (n is a natural number equal to or greater than 2), at least one of the memory lines of the first memory line set is set to a second state which is different from the first state, and the state bit represents whether data stored in the memory line is replaceable.