AGP 8x

AGP 8x refers to the initial variation of the Accelerated Graphics Port (AGP) interface. It was specified by Intel (specification v3.0) to improve the performance over AGX 4x. It operates on a 32-bit channel at 66 MHz, strobing 8 times per clock to 533 MHz, which provides a maximum transfer rate of 2133MB/s, compared to AGP 1x maximum rate of 266MB/s, AGP 2x rate of 533MB/s and AGP 4x rate of 1066MB/s.