Apple Initiates Video Card Replacement Program for Radeon HD 6970M Equipped Mid-2011 27” iMacs
Amazon.com: 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
How to Upgrade/Replace GPU Graphics Card on Mid-2011 21.5" iMac - YouTube
New amd radeon hd6970m for iMac 27" 2011 a1312 HD 6970m Graphics Card GPU 2gb | eBay
2011 iMac Graphics Card Upgrade | How to • Mac Expert Guide
What are the symptoms of a potential grap… - Apple Community
Original Graphics Video Card for Apple iMac 2011 Core i5 2.7 A1312 MC813LL/A MC813 27 Inch Desktop PC Computer AMD Radeon HD 6770M HD6770M GDDR5 512MB 109-C29557-00 Replacement Parts : Electronics
iMac Intel 21.5" EMC 2428 Radeon HD 6750M Graphics Card - iFixit Store