Abbreviation of
Synchronous Graphic Random Access Memory, a type of
DRAM used increasingly on
video adapters and
graphics accelerators. Like
SDRAM, SGRAM can synchronize itself with the CPU bus clock up to speeds of 100
MHz. In addition, SGRAM uses several other techniques, such as
masked writes and
block writes, to increase
bandwidth for graphics-intensive functions.
Unlike VRAM and WRAM, SGRAM is single-ported. However, it can open two memory pages at once, which simulates the dual-port nature of other video RAM technologies.
