What is an AGP slot?

apg slotThe AGP (Accelerated Graphics Port) expansion slot standard was introduced when video cards needed more bandwidth for performance than was provided by PCI. As suggested by the title, AGP slots are used for videoAGP 2X chipsets come with 3.3V slots, AGP 8x chipsets come with 1.5V slots, and some AGP 4x chipsets come with AGP Universal slots. 3.3V slots use the front key notch,