Imac 27" 2009 graphics card replacement Tags: Radeon Graphics Cards iMac Graphics Last response: July 14, 2011 2:56 AM in Graphics & Displays Share StanSmithl July 14, 2011 12:24:36 AM Hello, I've got a iMac 27" late 2009 and I want to replace my Radeon HD 4850M 512MB withe newest 6970M 2GB board. Has anyone tried this? More about : imac 2009 graphics card replacement COLGeek a c 220 U Graphics card July 14, 2011 2:56:42 AM Unless the new video card is "Mac compatible" it will not work. Sorry. You can't stuff a PC GPU into a Mac. There are firmware (software and sometimes hardware) that are the root of this problem. Can't find your answer ? Ask ! Publish Related resources Upgrade video card Imac 27''late 2009 Forum Early 2009 iMac processor/graphics card upgrade help?! Forum ATI Radeon HD 4670 - 2576MB (IMAC 27" (2009) Forum Will I be able to run GTA IV/SA with the latest imac 2.7 GHZ I5 intel iris pro graphics and how much fps will I be getting? Forum iMac 27: i7 or 780M for graphic design/video editing Forum Would a MSI N650-2GD5/OC - GF-GTX650 2GB grafics card work on a Imac early 2009 Forum SolvedI'm planning to get a iMac 21.5 inch that runs this graphics card NVIDIA GeForce GT 750M with 1GB video memory but I don't kno Forum 27 imac (mid 2010) ati radeon hd 5750 1gb gddr5 (pci express) video card in uk Forum SolvedGraphics card replacement Forum SolvedGraphics card replacement need help Forum SolvedGraphics Card Is Not Being Detected after Hard disk Replacement Forum SolvedNeed a graphics card for a Dell 30" and 27" ultrasharps Forum SolvedDoes 27" 1920X1080 Monitor needs strong Graphics card than 23" 1920X1080 Monitor? Forum SolvedLooking for a replacement radeon hd 4850 graphics card for a dell studio xps 435mt Forum Solvedinstalling graphic card and ram for my pentim dual core e5400 2.7 ghz Forum SolvedReplacement Graphics Card Forum SolvedGraphics Card replacement confusion ... Forum SolvedGood graphics card replacement Forum SolvedSimple Graphics Card and PSU replacement? Forum SolvedGraphics card going out need a replacement Forum More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !