(Accelerated Graphics Port) A high-speed 32-bit port from Intel for attaching a display adapter to a PC. It provides a direct connection between the card and memory, and only one AGP slot is on the motherboard. AGP was introduced as a higher-speed alternative to PCI display adapters, and it freed a PCI slot for another peripheral device. The brown AGP slot is slightly shorter than the white PCI slot and is located about an inch farther back. AGP was superseded by PCI Express.|
AGP 1x, 2x, 4x and 8x
The original AGP standard (AGP 1x) provided a data transfer rate of 264 Mbytes/sec. AGP 2x is 528 Mbytes/sec. AGP 4x is 1 Gbyte/sec. AGP 8x is 2 Gbytes/sec. See AIMM, PCI Express, PC data buses and motherboard.
The brown AGP receptacle sits a little farther back from the outside edge than the white PCI slots. There is one AGP slot on the motherboard for the display adapter (graphics card) only.
AGP has been widely used for the display adapter interface on PC motherboards. The edge connector configuration prevents a card from being inserted into the wrong slot.