Apple Computer , iMac 27-Inch 3.06 GHz Core 2 Duo, Order Number, MB952LL/A, Model Number, A1312, Model Year, Late 2009, Part Name, Video Card 256MB ATI Radeon HD 4670, Manufacture Part Number, N/A, Compatible Apple Order Number, MB952LL, Compatible Apple Model Number, A1312, EMC Number, EMC 2309, EEE Code, 7X4, 7X5, Compatible Apple Computer, iMac (27-inch, Late 2009), ,
Order you product here: 661-5314 Graphic Card 256MB ATI Radeon HD 4670 for iMac 27 inch Late 2009 A1312 MB952LL/A, 661-5314
source http://info.applepartsellers.com/661-5314-graphic-card-256mb-ati-radeon-hd-4670-for-imac-27-inch-late-2009-a1312-mb952ll-a