For iMac 21.5" A1311 Mid/Late 2011 6770 AMD upgrade Nvidia K610m 1GB Video Card | eBay
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
Maximizing the GPU in your MXM-based iMac | Low End Mac
Recently acquired 2007 Intel iMac (A1224), I am looking for GPU upgrade options but i can't find a list of compatible ones. Can anyone help me out on finding an either common
71aX5QOu5UL.jpg
Need to repair this iMac 27" 2011, Please any suggestions? GPU Temperature is not even 50 C : r/mac
iMac 2011 GPU upgrade to NVIDIA 770M with new VBIOS - YouTube