Apple iMac 27" i5 3.1 Radeon 6970M 1GB (Mid 2011) - Technical data and benchmarks
Apple iMac 21.5" A1311 Mid 2011 i5 2.5GHz 4GB 120GB SSD High Sierra SS969 | eBay
2011 iMac, 21.5-Inch Screen | Free Shipping Available
Amazon.com: Valley Of The Sun 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 Repair Parts :