Accelerated Graphics Port

From TPU Reference

Accelerated Graphics Port (AGP) is a motherboard expansion slot designed specifically for graphics cards. AGP was developed as a replacement to the PCI bus because graphics cards had began to reach its limits. The AGP slot first appeared on socket 7 and slot 1 based motherboards.

AGP Versions

AGP 1x

• Operates at 66 MHz
• Maximum theoretical bandwidth of 266Mb/s
• 3.3V signaling

AGP 2x

• Operates at 66 MHz double pumped to an effective 133 MHz
• Maximum theoretical bandwidth of 533Mb/s
• 3.3V signaling

AGP 4x

• Operates at 66 MHz quad pumped to an effective 266 MHz
• Maximum theoretical bandwidth of 1066Mb/s
• 1.5V signaling

AGP 8x

• Operates an effective 533 MHz
• Maximum theoretical bandwidth of 2133Mb/s
• 0.8V signaling

See also

• PCI
• PCI-E
• ISA
• MCA
• VLB
• PCI-X