Accelerated Graphics Port

The Accelerated Graphics Port (AGP) is a standard outlining a high-speed, dedicated graphics bus primarily to assist in the acceleration of 3D computer graphics.

AGP dynamically allocates the PC's normal RAM to store the screen image and to support [texture mapping]?, z-buffering? and [alpha blending]?.

Intel has built AGP into a chipset for its Pentium II microprocessor. AGP cards are slightly longer than a PCI card.

AGP operates at 66 MHz, doubled to 133 MHz, compared with PCI's 33 Mhz. AGP allows for efficient use of frame buffer memory, thereby helping 2D graphics performance as well.

AGP provides a coherent memory management design which allows scattered data in system memory to be read in rapid bursts. AGP reduces the overall cost of creating high-end graphics subsystems by using existing system memory.

External Links:

• [Intel AGP Technology Home]

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Based on a FOLDOC entry. Used with permission.