Accelerated Graphics Port. A bus specification from Intel that gives graphics cards faster access to main memory than the PCI bus, thus greatly speeding up graphics display and texture rendering, especially virtual reality and 3D rendering and display. AGP allows efficient use of frame buffer memory, thereby helping 2D graphics performance as well. The coherent memory management design allows scattered data in system memory to be read in rapid bursts. The PCI graphics accelerator bus has a data transfer rate of up to 133 MBps. Because it is directly on the motherboard's chipset and has a direct pipeline connection to the computer's main memory, AGP is much faster. AGP is available in two speeds: 1X transfers data at a rate of 264 MBps; 2X transfers data at 528 MBps. The AGP 4X, coming in 1999, will double the bandwidth peak again to 1 GBps.