GDDR SDRAM

Hynix GDDR SDRAM

Graphics DDR SDRAM (GDDR SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) specifically designed for graphics processing units (GPUs). GDDR SDRAM is distinct from the more widely known types of DDR SDRAM, such as DDR3, although they share some of the same features—including double data rate data transfers. As of 2014, GDDR SDRAM has been succeeded by GDDR2, GDDR3, GDDR4, GDDR5, GDDR5X, and GDDR6.

Graphics processing unit
GPU	Adreno Apple GeForce Quadro InfiniteReality Intel GT Mali PowerVR Radeon Pro Voodoo
Architecture	Compute kernel Graphics pipeline Geometry Vertex High-dynamic-range rendering Multiply–accumulate operation Rasterisation Ray-tracing SIMD SIMT Tessellation Tiled rendering Transform, clipping, and lighting Unified shader model
Components	Shader unit Texture mapping unit Render output unit Tensor unit Input–output memory management unit Stream processor Geometry processor Video display controller Video processing unit
Memory	Direct memory access Framebuffer GDDR SDRAM GDDR3 GDDR4 GDDR5 GDDR6 High Bandwidth Memory Memory bandwidth Memory controller Shared graphics memory
Form factor	IP core Discrete graphics Clustering Switching External graphics Integrated graphics System on a chip
Performance	Clock rate Display resolution Fillrate Pixel/s Texel/s FLOP/s Frame rate Performance per watt Transistor count
Misc	ASIC GPGPU Graphics library Hardware acceleration Image processing Parallel computing Vector processor Video codec VLIW

See also