eMac Video Upgrade

Bri3D writes "I've got an eMac G4/700, with a GeForce2 220 32MB video card. The video card is great for everyday use, but woefully slow for gaming. I looked for a method to replace the video card, and found these pages about eMac disassembly, but no information on if the video is upgradeable or even seperate from the motherboard. Does anyone have information on replacing the video card on an eMac?"