![Original Tested A1311 Motherboard 820-2494-a For Imac 21.5'' Logic Board 631-1044 661-5305 631-1068 2009 Year 100% Work Well - Laptop Motherboard - AliExpress Original Tested A1311 Motherboard 820-2494-a For Imac 21.5'' Logic Board 631-1044 661-5305 631-1068 2009 Year 100% Work Well - Laptop Motherboard - AliExpress](https://ae01.alicdn.com/kf/S147cbd26a4ff4d01801fb2e1f414060bP.jpg?width=900&height=900&hash=1800)
Original Tested A1311 Motherboard 820-2494-a For Imac 21.5'' Logic Board 631-1044 661-5305 631-1068 2009 Year 100% Work Well - Laptop Motherboard - AliExpress
![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: 2GB Graphics Video Card HD6970M Replacement, for iMac Mid-2011 27 Inch A1312 Desktop PC Computer Core i5 MAC814LL/A MC814, AMD Mobility Radeon HD 6970M GPU Upgrade MXM Board Repair Parts : Amazon.com: 2GB Graphics Video Card HD6970M Replacement, for iMac Mid-2011 27 Inch A1312 Desktop PC Computer Core i5 MAC814LL/A MC814, AMD Mobility Radeon HD 6970M GPU Upgrade MXM Board Repair Parts :](https://m.media-amazon.com/images/I/71mRUGgVHgL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 2GB Graphics Video Card HD6970M Replacement, for iMac Mid-2011 27 Inch A1312 Desktop PC Computer Core i5 MAC814LL/A MC814, AMD Mobility Radeon HD 6970M GPU Upgrade MXM Board Repair Parts :
![Computers & Electronics :: Refurbished Desktop Computers :: Apple Desktops :: iMac :: Apple iMac 27-Inch 5K 3.5 GHz i5 1TB Fusion 32GB RAM 2GB GFX Late 2014 Computers & Electronics :: Refurbished Desktop Computers :: Apple Desktops :: iMac :: Apple iMac 27-Inch 5K 3.5 GHz i5 1TB Fusion 32GB RAM 2GB GFX Late 2014](https://techable.com/images/detailed/24/apple-imac-27-inch-5k-3.5-ghz-i5-1tb-fusion-32gb-ram-2gb-gfx-late-2014-apple-imac-27-5k-3.5ghz-core-i5-1tb-fusion-32gb-2400mhz-ram-2gb-gfx-2014.jpeg)
Computers & Electronics :: Refurbished Desktop Computers :: Apple Desktops :: iMac :: Apple iMac 27-Inch 5K 3.5 GHz i5 1TB Fusion 32GB RAM 2GB GFX Late 2014
![Apple iMac with 5K Retina display (27-inch) review: Apple's 5K iMac impresses expert eyes (review) - CNET Apple iMac with 5K Retina display (27-inch) review: Apple's 5K iMac impresses expert eyes (review) - CNET](https://www.cnet.com/a/img/resize/ee0ec1a248351364285494d1aad1acc7eca25fd6/hub/2014/10/17/8a4bc5f9-5b42-473d-9356-9391342ecb38/apple-imac-retina-5k-display-7861-008.jpg?auto=webp&fit=crop&height=1200&width=1200)
Apple iMac with 5K Retina display (27-inch) review: Apple's 5K iMac impresses expert eyes (review) - CNET
Why does 'About This Mac' on Apple macOS sometimes not show the discrete graphics adapter (GPU)? - Quora
Apple - 27-inch iMac Pro with Retina 5K display - 3.0GHz 10-core Intel Xeon W processor: Holy Names University
![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 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](https://m.media-amazon.com/images/I/61kZaXJwLkL.jpg)
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
![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)