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Amazon.com: Original Graphics Card GPU Replacement, for Apple iMac Late 2009 A1312 MC507LL/A 27-Inch Core i7 2.8 27-Inch Computer, AMD Radeon HD4850 HD 4850 GDDR3 512MB, MXM GPU Video Board Repair Parts :
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Apple iMac (27-inch, September 2013) review: New processors and faster Wi-Fi for Apple's slim desktop - CNET
![Apple iMac (27-inch, September 2013) review: New processors and faster Wi-Fi for Apple's slim desktop - CNET Apple iMac (27-inch, September 2013) review: New processors and faster Wi-Fi for Apple's slim desktop - CNET](https://www.cnet.com/a/img/resize/0df5ab98e29a9416a5576cd29efbd3eb19aabdd7/hub/2013/09/26/8e0aac40-67e4-11e3-a665-14feb5ca9861/35827456.jpg?auto=webp&fit=cover&height=482&width=856)