iMac Intel 27" EMC 2429 Radeon HD 6770M Graphics Card
661-5945 - Apple Radeon HD 6770M 512MB Video Graphics Card
Profiling data on ATI Radeon HD 6770M | Download Scientific Diagram
iMac Intel 27" EMC 2429 Radeon HD 6770M Graphics Card
HP HD 6770M 2 GB Specs | TechPowerUp GPU Database
Amazon.com: Original Graphics Video Card for Apple iMac 2011 Core i5 2.7 A1312 MC813LL/A MC813 27 Inch Desktop PC Computer AMD Radeon HD 6770M HD6770M GDDR5 512MB 109-C29557-00 Replacement Parts : Electronics
AMD Radeon HD 6770M Specs | TechPowerUp GPU Database
Intel iMac 21.5" ATI Radeon HD 6770M 512MB Video Card
Radeon HD 6770M vs Radeon HD 7650A
iMac A1312 27" Mid 2011 Video Card AMD Radeon HD 6770M 512MB MXM 661-5967 AS-IS