1. A graphics subsystem configured to implement a graphics processing pipeline that includes a first set of processing stages and a second set of processing stages, the graphics subsystem comprising: a first processing engine configured to: retrieve graphics object data from a first memory unit; perform a first graphics processing operation on the graphics object data at a first processing stage included in the first set of processing stages to generate processed graphics object data; determine that a second processing stage included in the first set of processing stages is the final processing stage in the first set of processing stages; and copy the processed graphics object data to the first memory unit, wherein the processed graphics object data overwrites at least a portion of the graphics object data within the first memory unit.