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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 :
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2011 iMac Graphics Card Upgrade | Page 104 | MacRumors Forums
iMac 2011 GPU Upgrade
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2011 iMac Graphics Card Upgrade | MacRumors Forums
Upgrading an iMac GPU for METAL Support! Late 2009 – Mid 2011 Models - YouTube
Dell Precision 7720 GPU Upgrade - Components & Upgrades - NotebookTalk
