Accelerated Graphics Port

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AGP

Accelerated Graphics Port
Universal AGP slot (brown, top), 2 PCI 2.2 slots (white beige, middle), and CNR slot (brown, bottom)
Year created	1997; 27 years ago (1997)
Created by	Intel
Supersedes	PCI for graphics
Superseded by	PCI Express (2004)
Width in bits	32
No. of devices	One device per slot
Speed	Half-duplex Up to 2133 MB/s
Style	Parallel

Accelerated Graphics Port (AGP) is a parallel expansion card standard, designed for attaching a video card to a computer system to assist in the acceleration of 3D computer graphics. It was originally designed as a successor to PCI-type connections for video cards. Since 2004, AGP was progressively phased out in favor of PCI Express (PCIe), which is serial, as opposed to parallel; by mid-2008, PCI Express cards dominated the market and only a few AGP models were available,^[1] with GPU manufacturers and add-in board partners eventually dropping support for the interface in favor of PCI Express.