Apple iMac 27" Mid 2010 Logic Board 820-2901 661-5530 661-5531 CPU NOT - Part Haven
Buy 2 GB Graphics Video Card GPU Upgrade Replacement for Apple iMac Mid-2011 A1312 27 Inch Core i7 3.4 i5 3.1 Desktop Computer, New AMD Radeon HD 6970M HD6970M 2GB MXM Board
New Nvidia Gtx 880m Gtx880m 8gb Gddr5 Mxm 3.0b Video Card Flashed Vbios For Imac 27-inch Mid 2011 Graphics Upgrade - Laptop Repair Components - AliExpress
Amazon.com: 2GB Graphics Video Card Upgrade for Apple iMac Mid-2011 27 Inch Core i5 MC814LL/A MC814 A1312 Desktop All-in-One PC, AMD Mobility Radeon HD 6970M Replacement Repair Parts : Electronics
iMac 2010 GPU in 2011 | MacRumors Forums
How to upgrade a Mac: Swap in new RAM, graphics card, hard drive and more | Macworld
iMac Intel 27" EMC 2374, AMD Radeon HD 4850 Video Card Removal & Repair - iFixit Repair Guide
Mid-2010 iMac GPU Upgrade - New Builds and Planning - Linus Tech Tips
2010 iMac GPU Upgrade to NVIDIA GTX 765M - YouTube
Amazon.com: Original Graphics Video Card GPU Upgrade Replacement for Apple iMac 21.5 Inch Late 2011 Core i3 3.1 All-in-One Desktop PC MC978LL/A, AMD ATI Mobility Radeon HD 6750M, MXM VGA Board Repair
iMac 24″ Opened and Upgraded – Tech DC
For iMac 27" A1312 Mid 2009 2010 2011 upgrade NVIDIA K4100M 4GB GPU Video Card | eBay
Amazon.com: Graphics Video Card GPU Replacement for Apple iMac Mid-2010 A1312 Core i5 3.6 MC510LL/A MC511LL/A 27 Inch 27" Desktop PC Computer, ATI Mobility Radeon HD 5670 GDDR3 512MB Genuine Parts :
Baking a Graphics Card | macman860
iMac Intel 21.5" EMC 2389 Radeon HD 4670 Graphics Card - iFixit Store
Cracking Open the 27" Apple iMac (2011) | TechRepublic