AMD - By Best Selling

Apple iMac 21.5" A1311 ATI Radeon HD 4670 Graphic Video Card Mid 2010 661-5539

Apple iMac 21.5" A1311 Mid-2011 ATI Radeon HD 6750m Graphics Video Card

Apple iMac 24" A1225 ATI Radeon HD 2600 Pro Graphics Video Card 2007/2008 HD2600 256mb

Apple iMac 27" A1312 ATI Radeon HD 4850 Graphics AMD Video Card 2009 2010 HD4850 512mb

iMac 21.5" A1311 ATI Radeon HD 4670 Graphic Video Card Mid-2010 Apple HD4670 AMD

Apple iMac 21.5" A1311 AMD Radeon HD 6770m Graphics Video Card Mid-2011 HD6770M with Heatsink 661-5945 ATI

Apple iMac 21.5" A1311 ATI Radeon HD 4670 Graphics Video Card Late 2009 HD4670

Apple A1224 iMac 20" AMD ATI Radeon HD 2600 Pro Video Graphics Card 2007/2008

Apple iMac 27" A1312 AMD ATI Radeon HD 5670 Graphics Video Card 2009 2010 HD5670 661-5579 Late 2009 Mid 2010