iMac Intel 27" Parts
Choose your model of iMac Intel 27":
Parts that work with iMac Intel 27":

iMac Intel 27" EMC 2374 Radeon HD 4850 Graphics Card
Replace a Radeon HD 4850 graphics card in a Model A1312 Late 2009 27" iMac.

iMac Intel 27" EMC 2390 Radeon HD 5670 Graphics Card
Replace a Radeon HD 5670 graphics card in a Model A1312 Mid 2010 27" iMac.
iMac Intel 27" EMC 2390 Radeon HD 5750 Graphics Card
Replace a Radeon HD 5750 graphics card in a Model A1312 Mid 2010 27" iMac.
iMac 27" (Mid 2011) Graphics Card
Replace a broken or malfunctioning Graphics Card in your iMac 27" (Mid 2011) desktop.
iMac Intel 27" EMC 2429 Radeon HD 6970M Graphics Card
Replace a Radeon HD 6970M graphics card in a Model A1312 Mid 2011 27" iMac.
Device Info
In October 2009, Apple unveiled the new 27" iMac. Externally, the machine featured edge-to-edge glass and an aluminum rear bezel. Internally, an LED display, 4 RAM slots (to upgrade to a maximum of 16 GB RAM), more powerful video processing, and faster processors round out an impressive upgrade from the 24" iMac. Since 2009 there have been several iterations of the 27" iMac.
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