If you have Win 95, 98, or ME, right-click the My Computer icon on your desktop and choose Properties from the menu. On the Device Manager tab click the + next to where it says Display. Your video card should be listed there.
DXDIAG may also list it. Click the Start button on the lower left of your screen, then Run. Type
dxdiag
in the box and OK it. Look on the Display tab for information about your video card.