2017 27" Mac Graphic card issues? - Apple Community
Amazon.com: Valley Of The Sun New 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 :
Apple MacBook Pro A1286 Graphics Chip Replacement | Disc Depot Dundee