NEW Apple iMac 27" A1312 mid 2011 AMD HD 6970M 2GB DDR5 GPU Video Card HD6970 | eBay
iMac 27' (mid 2011) fix for AMD Radeon HD 6970M no video problem - YouTube
Videoboard ATI Radeon HD 6970M 109-C29657-10 2048MB 2GB iMac A1312 - used original spareparts for Macs
Videoboard ATI Radeon HD 6970M 109-C29657-10 2048MB 2GB iMac A1312 - used original spareparts for Macs
Original Ati HD 6970M 5750m 4850 4670 Graphics Card Video Card 1GB 2GB 109-C29657-10 For Apple iMac 27" A1312 GPU 2009 2010 2011 - AliExpress
Amazon.com: GDDR5 2GB Graphics Video Card Radeon HD 6970M for Apple iMac Mid-2011 27 Inch Core i5 i7 All-in-One Desktop PC Computer, AMD Radeon HD6970M HD6970 MXM Board GPU Upgrade Repair Parts :
Amazon.com: New HD 6970M 2GB Graphics Card Replacement for iMac Mid-2011 27" All-in-One Desktop PC Core i7 3.4 MD063LL/A MD063, AMD Radeon HD6970M HD6970 GPU Upgrade MXM Video Board Repair Parts :