Accelerated Graphics Port [AGP]

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An interface specification developed by Intel.  This interface was based on PCI to meet the bandwidth demands of 3D Video Graphics Cards.

Rather than using the PCI bus for graphics data, AGP introduces a dedicated point-to-point channel so that the graphics controller can directly access main memory.

The AGP channel is 32 bits wide and runs at 66 MHz with a total bandwidth of 266 MBps. AGP also supports two optional faster modes, with throughputs of 533 MBps and 1.07 GBps. In addition, AGP allows 3-D textures to be stored in main memory rather than video memory.



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