How to tell what kind of motherboard video card slots your computer has before you buy a new video card. Your computer will have PCI slots. Your spare video card probably uses a PCI-Express x16, AGP, or PCI slot. a card, you can get a card that will fit in any of your other expansion slots. Browse other questions tagged graphics - card expansion-cards or ask. A video card (also called a display card, graphics card, display adapter or graphics adapter) is an expansion card which generates a . occupying two or three expansion slots, and with dual- GPU cards -such as the Nvidia GeForce GTX Dedicated vs integrated · Multi-card scaling · Size of market and impact · Parts. Search Help Tips Dictionary History Forums Contact. These various types of slots and expansion cards are generally compatible with each. On top of that, the fastest video cards are not available for AGP at all. Video cards are normally designed to fit in x16 slots since they are the fastest. AGP comes in three versions - 1. There have been many kinds of expansion slots over the years so most motherboards contain more than one kind of slot.