![Amazon.com: Original Graphics Video Card for Apple iMac Core i7 2.8 27-Inch Late 2009 A1412 MC507LL/A MC507 Desktop Computer, AMD ATI Mobility Radeon HD 4850 GDDR3 512MB 109-B91157-00, GPU Upgrade Replacement : Electronics Amazon.com: Original Graphics Video Card for Apple iMac Core i7 2.8 27-Inch Late 2009 A1412 MC507LL/A MC507 Desktop Computer, AMD ATI Mobility Radeon HD 4850 GDDR3 512MB 109-B91157-00, GPU Upgrade Replacement : Electronics](https://m.media-amazon.com/images/I/61GpS98AU6L.jpg)
Amazon.com: Original Graphics Video Card for Apple iMac Core i7 2.8 27-Inch Late 2009 A1412 MC507LL/A MC507 Desktop Computer, AMD ATI Mobility Radeon HD 4850 GDDR3 512MB 109-B91157-00, GPU Upgrade Replacement : Electronics
![Got this iMac from a surplus store for 10$, 27 inch 2011 maxed out (i7 & 32gb of ram with a ssd) gpu failing but I plan on replacing it and getting Got this iMac from a surplus store for 10$, 27 inch 2011 maxed out (i7 & 32gb of ram with a ssd) gpu failing but I plan on replacing it and getting](https://i.redd.it/0u01zvs8lcn81.jpg)
Got this iMac from a surplus store for 10$, 27 inch 2011 maxed out (i7 & 32gb of ram with a ssd) gpu failing but I plan on replacing it and getting
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Amazon.com: Sunvalley 2GB Graphics Video Card Replacement for Apple iMac Mid-2011 27 Inch A1312 Core i7 3.4 MD063LL/A MD063 Desktop PC Computer, ATI Radeon HD 6970 GDDR5 2 GB, New GPU Upgrade
![iMac receives major update featuring more powerful graphics, faster processors, Thunderbolt 3 and brighter displays - Apple iMac receives major update featuring more powerful graphics, faster processors, Thunderbolt 3 and brighter displays - Apple](https://www.apple.com/newsroom/images/product/mac/standard/new_2017_imac_two_side_big.jpg.large.jpg)
iMac receives major update featuring more powerful graphics, faster processors, Thunderbolt 3 and brighter displays - Apple
![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 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](https://m.media-amazon.com/images/I/51Tj76maEnL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingTHREEANDHALF%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA6%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
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
![27" iMac with Retina 5K display (Mid 2017) - Z0TR-MNED40 (27" (4.2GHz 8GB 2TB FUS Radeon 580)) | AppleInsider 27" iMac with Retina 5K display (Mid 2017) - Z0TR-MNED40 (27" (4.2GHz 8GB 2TB FUS Radeon 580)) | AppleInsider](https://photos5.appleinsider.com/price_guide/2017-27-inch-imac-5k-product-page.png)
27" iMac with Retina 5K display (Mid 2017) - Z0TR-MNED40 (27" (4.2GHz 8GB 2TB FUS Radeon 580)) | AppleInsider
![New 27-Inch iMac Has Up to 80% Faster Graphics at Compute Tasks Compared to Previous Model - MacRumors New 27-Inch iMac Has Up to 80% Faster Graphics at Compute Tasks Compared to Previous Model - MacRumors](https://images.macrumors.com/t/IE0r40fQDPKM05fmRPXZZaRFnSM=/1600x/article-new/2013/09/27inch5kimac.jpg)