1. A graphics system comprising: a memory configured to receive and store graphics data, wherein the memory comprises, a RAM configured to store the graphics data, a level two cache memory connected to the RAM, and a level one cache memory connected to the level two cache memory; an array of registers configured to store status information, wherein the status information tracks and indicates accesses to the graphics data in the level one cache, wherein the status information further indicates whether the graphics data is modified or unmodified; and a memory request processor connected to the memory and to the array of registers, wherein the memory request processor controls the transfer of graphics data from the level one cache memory to the level two cache memory according to the status information.