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AMD Radeon HD 6970M 1GB Mac | budgethearses.com
661-5969 Apple Video Card AMD Radeon HD 6970M 2GB for iMac 27"
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AMD Radeon HD 6970M Specs | TechPowerUp GPU Database
Amazon.com: Genuine Graphics Video Card Replacement AMD Radeon HD 6970M GDDR5 1GB 109-C29657-10 for Apple iMac 2011 27" MC814LL/A MD063LL/A A1312 Desktop PC Computer, MXM VGA Board Repair Parts Full Tested :