Editing Accelerated Graphics Port (section)

===Official extensions===
[[File:NVIDIA GeForce4 Ti 4600 Mac.jpg|thumb|AGP graphics card (Apple [[Macintosh]])]]
[[File:Quadro ELSA GLoria II Pro.jpg|thumb|AGP Pro graphics card]]

====AGP Pro====
An official extension for cards that required more electrical power, with a longer slot with additional pins for that purpose. AGP Pro cards were usually workstation-class cards used to accelerate professional [[computer-aided design]] applications employed in the fields of architecture, machining, engineering, simulations, and similar fields.<ref>{{cite web| url = http://www.motherboards.org/files/techspecs/apro_r11a.pdf| title = AGP Pro 1.1a specification}}</ref>

====64-bit AGP====
A [[64-bit computing|64-bit]] channel was once proposed as an optional standard for AGP 3.0 in draft documents,<ref>{{cite web |url = http://www.intel.com/technology/agp/downloads/agp8x_v091R_042401.pdf |title = Draft AGP8× Interface Specification Rev. 0.91R |archive-url=https://web.archive.org/web/20010613041316/http://www.intel.com/technology/agp/downloads/agp8x_v091R_042401.pdf |archive-date=13 June 2001 |url-status=dead}}</ref> but it was dropped in the final version of the standard.

The standard allows 64-bit transfer for AGP8× reads, writes, and fast writes; 32-bit transfer for PCI operations.