Synchronous Graphics Random Access Memory(SGRAM, Synchronous Graphics RAM) A type of {Synchronous DRAM} optimised for use in {graphics} hardware. Extra features can include {burst operation}, {block write} and {write per bit}. SGRAMs are designed to provide the very high {throughput} needed for graphics-intensive operations such as 3d {rendering} and {full-motion video}. (1996-11-28)