2007 Apple 20" iMac A1224 Grafikkarte ATI Radeon HD 2400 XT 128MB 661-4440 (W873) | eBay
iMac Intel 20" EMC 2133 and 2210 Video Card Replacement - iFixit Repair Guide
Original Graphics Card for Apple iMac Early 2008 24-Inch A1225 Desktop Computer Core 2 Duo
I have a Early 2008 Imac 20" Problems - Apple Community
iMac (Model No:A1311, current OS) does this when I try to boot it up, then goes to a white screen. Graphics card failure? : r/applehelp
iMac Intel 20" EMC 2133 and 2210 Video Card Replacement - iFixit Repair Guide
Amazon.com: Original GDDR3 512MB Graphics Video Card GPU Replacement for Apple iMac Early 2008 A1225 Core 2 Duo 3.06 MB398LL/A MB398 24-Inch Desktop PC, nVidia GeForce 8800 GS GT GTS, MXM VGA
Original Graphics Video Card Replacement, for Apple iMac Early 2008 A1224 20" Desktop Computer Core 2 Duo 2.66 MB324LL/A, ATI Radeon HD 2600 Pro GDDR3 256MB MXM GPU Board Repair Spare Parts