Apple A1224 iMac 20" 2008 2007 AMD Radeon 256MB Video Card 109-B22531-10 | eBay
What's the best Metal GPU for the 2008 Mac Pro | MacRumors Forums
Need help with iMac 8,1 (early 2008) with EXP GDC through mpcie on Big Sur – Thunderbolt macOS eGPU
Amazon.com: Original Graphics Card for Apple iMac Early 2008 24-Inch A1225 Desktop Computer Core 2 Duo 2.8 MB325LL/A, ATI Radeon HD 2600 Pro GDDR3 256MB, GPU Upgrade Video Cards Replacement Spare Parts : Electronics
Big Sur running on an early 2008 MBP, with working GPU acceleration! thanks OCLP : r/BigSurPatcher
iMac Intel 20" EMC 2133 and 2210 Video Card Replacement - iFixit Repair Guide
dosdude1 on Twitter: "Just performed a successful GPU repair on this Early- 2008 24" iMac! This machine should never have another GPU issue again. https://t.co/HgGfnihfXT" / Twitter
Apple's management doesn't want Nvidia support in macOS, and that's a bad sign for the Mac Pro | AppleInsider
Ultimate (iMac) MXM efi rom/vbios thread...
Change graphics card of white iMac 24" (model September 2006)
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
Upgrade 24” iMac video card - ATI Radeon 256MB to NVIDIA GeForce 512MB - Ask Different
iMac 24″ Opened and Upgraded « Tech DC
Upgrading an iMac GPU for METAL Support! Late 2009 – Mid 2011 Models - YouTube
iMac Intel 20" EMC 2133 and 2210 Video Card Replacement - iFixit Repair Guide
631-0595 Apple 256MB ATI Radeon HD 2600 Pro GDDR3 GPU Video Graphics Card for iMac
iMac A1224 Graphics Card Repair (Early 2008) ATI Radeon
Graphics Card Upgrade for Mac Pro 2008–2012. Mac Pro GPU Upgrade. Mac Pro video card. Replace your old GPU with a new generation NVIDIA GTX, AMD RX
An external GPU under Mac OS X : three screens on a MacBook Pro | Le journal du lapin