Apple Computer iMac 27-inch 2.7/3.1/3.4 GHz Core i5 (i5-2500S, i5-2400) iMac 27-inch 3.4 GHz Core i7 (i7-2600) Order Number MC813LL/A Model Number A1312 Model Year Mid 2011 Part Name Video Card 512MB AMD Radeon HD 6770 Manufacture Part Number Compatible Apple Order Number MC813LL/A, MC814LL/A Compatible Apple Model Number A1312 EMC Number EMC 2429 EEE […]