Video Board 661-4991 NVidia GeForce GT 130 512MB iMac 24 inch A1225 2009 - used original spareparts for Macs
Amazon.com: Valley Of The Sun 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
How to upgrade a Mac: Swap in new RAM, graphics card, hard drive and more | Macworld
SOLVED: What GPU's are compatible with iMac 27" 2011? - iMac Intel 27" EMC 2429 - iFixit
Further Explained: Apple's iMac 2011 Model Hard Drive 'Restrictions'
2010 iMac GPU Upgrade to NVIDIA GTX 765M - YouTube
Someone gave me this unwanted Mac, anyone know if you can upgrade the graphics cards on these ? Keep seeing conflicting information it's a 24" early 2009 imac : r/mac
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For Imac 27" A1312 Mid 2011 Nvidia Gtx 880m 8gb Gddr5 N15e-gx-a2 Gpu Graphics Video Card For Dell Alienware M17x R4 R5 M18x R2 - Laptop Repair Components - AliExpress
iMac 2009 to 2011 (A1311/A1312) Upgrade Guide – MacintoshMen
2 GB Graphics Video Card GPU Upgrade Replacement for Nepal | Ubuy