This is actually a form of SDRAM with some additional features to speed up 3D graphics. It is used on some graphics cards.
A form of synchronous memory optimized for graphics.
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.
Synchronous Graphics RAM: a single ported DRAM designed for high-speed, serial data, and usually used on graphics boards.
SGRAM is a single-ported RAM type. SGRAM uses a dual-bank feature to speed performance.
Synchronous Graphic Random Access Memory. Memory that synchronizes with the CPU and uses techniques to optimize graphics processing. (4/99)
Synchronous Graphic Random Access Memory.Memory that is used for graphic-intensive operations such as 3-D rendering and displaying full-motion video.
Acronym for synchronous graphics random-access memory.
(Synchronous Graphics Random-Access Memory) - Video memory that includes graphics-specific read/write features. SGRAM allows data to be retrieved and modified in blocks instead of individually. Blocking reduces the number of reads and writes the memory must perform and increases the performance of the graphics controller.
Synchronous graphics RAM. A single port DRAM designed for graphics hardware that requires high-speed throughput such as 3-D rendering and full-motion video.
Unlike VRAM and WRAM, and despite the fact that its primary use is on video accelerator cards, SGRAM is a single-ported RAM type. It speeds performance through a dual-bank feature, in which two memory pages can be opened simultaneously; it therefore approximates dual-porting. SGRAM is proving to be a significant player in 3-D video technology because of a block-write feature that speeds up screen fills and allows fast memory clearing. Three-dimensional video requires extremely fast clearing, in a range of 30 to 40 times per second.
Synchronous Graphics Random Access Memory, a special form of RAM that is designed specifically for graphics cards. SGRAM offers a little more bandwidth then SDRAM, however cost more as well.