Amazon.com: Original Graphics Video Card for Apple iMac Core i7 2.8 27-Inch Late 2009 A1412 MC507LL/A MC507 Desktop Computer, AMD ATI Mobility Radeon HD 4850 GDDR3 512MB 109-B91157-00, GPU Upgrade Replacement : Electronics
My free iMac 27" (2009) core i7 2.8, 32GB, 1TB SSD High Sierra. only cost me a SSD and about an hour of time. : r/mac
Apple iMac 27 inch Late 2009 | ShaferTech Home!
DDR3 RAM for Late 2009 iMac | MacRumors Forums
identiMac :: Model Detail - iMac 27 inch 2.66/2.8 GHz Core i7 BTO i7-860 (Late 2009)
SellYourMac.com - Apple 27" iMac (Aluminum, Late 2009) 2.8 GHz Core i7 MC507LL/A - Specifications
Apple iMac 27-inch (27-inch review: Apple iMac 27-inch (27-inch - CNET