Site Help ID Your Mac
In a different tab or window, go to Apple's Online Check Coverage (https://checkcoverage.apple.com) and enter your serial number. What information is displayed below the picture?
iBook (16 VRAM)
iBook (Opaque 16 VRAM)
iBook (32 VRAM)
iBook (800 MHz 32 VRAM)
iBook (900 MHz 32 VRAM)