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Intel iMac 27" ATI Radeon HD 4670 256MB Video Card
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Videoboard ATI Radeon 4850 HD 109-B91157-00 661-5315 512MB iMac A1311 A1312 - used original spareparts for Macs
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VBIOS for ATI Radeon HD 4850 from an iMac 24" early 2009 A1225 | MacRumors Forums
Apple iMac A1312 AMD Radeon HD 4850 512MB 109-B91157-00 GPU Graphics Card – eRecycler Online
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Hd 4850 Video Card Ati Radeon 512mb For Apple 27" Imac A1312 Late 2009 661-5315 - Laptop Repair Components - AliExpress
Amazon.com: K-Musculo ATI Radeon Hd 4850 512mb Rv770 PRO Dvi/dn/dvi Pcie Video Card : Electronics
iMac Intel 27" EMC 2374, AMD Radeon HD 4850 Video Card Removal & Repair - iFixit Repair Guide
AMD iMac 27" GPU Video Card ATI HD 4850 2010 2011 Parts as-is | eBay
661 5315 for Apple iMac 27" A1312 Radeon HD 4850 HD4850 512M 512MB VGA Graphics Video Card 109 B91157 00 216 0732025|Laptop Motherboard| - AliExpress
iMac (27-inch)
Late 2009 iMac 27" Video Card Repair — 4850 — 2nd Bake - YouTube
