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What is the full form of AGP?
Full form of AGP: Here, we are going to learn what does AGP stands for? AGP – which is an abbreviation of "Accelerated Graphics Port" in Computer Acronyms/Abbreviations, etc.
Submitted by Anushree Goswami, on March 23, 2020
AGP: Accelerated Graphics Port
AGP is an abbreviation of the "Accelerated Graphics Port".
It was created and developed as a high-speed point-to-point channel for putting together a video card to a system of the computer, first and foremost to help out and support the acceleration of 3D computer graphics. It was at the beginning created and developed as a descendant to PCI-type connections for video cards. As of 2004, AGP has been gradually carried out in regular stages in support of PCI Express; by mid-2008, PCI Express cards have taken over the market and simply a small number of AGP models were obtainable and accessible, with GPU manufacturers and add-in board partners in due course reducing support for the interface in support of PCI Express.
AGP History
- The AGP slot first came out and emerged on x86-compatible system boards based on Socket 7 Intel P5 Pentium and Slot 1 P6 Pentium II processors.
- On August 26, 1997, Intel launched AGP support with the i440LX Slot 1 chipset, and an overflow of products followed from the entire most significant system board sellers.
AGP Versions
- In 1997, Intel launched "AGP specification 1.0".
- It mentioned 3.3 V signals and 1× and 2× speeds.
- Specification 2.0 documented 1.5 V signaling, which could be used at 1×, 2× and the further 4× speed and 3.0 supplemented 0.8 V signaling, which could be controlled and managed at 4× and 8× speeds.
Existing versions are listed below in the given following table.
Specification | Voltage | Clock | Speed | Transfers/clock | Rate (MB/s) |
PCI | 3.3/5 V | 33 MHz | — | 1 | 133 |
PCI 2.1 | 3.3/5 V | 33/66 MHz | — | 1 | 133/266 |
AGP 1.0 | 3.3 V | 66 MHz | 1× | 1 | 266 |
AGP 1.0 | 3.3 V | 66 MHz | 2× | 2 | 533 |
AGP 2.0 | 1.5 V | 66 MHz | 4× | 4 | 1066 |
AGP 3.0 | 0.8 V | 66 MHz | 8× | 8 | 2133 |
AGP 3.5* | 0.8 V | 66 MHz | 8× | 8 | 2133 |
Official Extensions
AGP Pro
- An official extension for cards that needed more electrical power, with an extended slot with supplemented pins for that purpose.
- AGP Pro cards were generally workstation-class cards used to accelerate professional computer-aided design applications made use of in the fields of architecture, machining, engineering, simulations, and related fields.
64-bit AGP
- A 64-bit channel was formerly projected as an elective standard for AGP 3.0 in draft documents, other than it was dropped in the last version of the standard.
- The standard enables 64-bit transfer for AGP8× reads, writes, and fast writes; 32-bit transfer for PCI operations.
Reference: Accelerated_Graphics_Port