Page 3: AGP and PCI Express slots - iXBT Labs

apg slotOlder Expansion Slots on Motherboards 1. AGP Slot. Stands for Accelerated Graphics Port, this slot is available only in older motherboards to connect the graphics card for accelerating 3D output. AGP offers fasterAGP 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,