Used - Very Good: XFX Radeon HD 5670 Video Card HD-567X-ZNF3 - Newegg.com
HIS HD 5670 IceQ 1GB (128bit) GDDR5 PCIe (DirectX 11) < HD 5600 Series < Desktop graphics < Products | HIS Graphic Cards
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ASUS EAH5670 HD 5670 1GB Review @ TweakNews | VideoCardz.com
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FORCE3D HD 5870
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for iMac 2010 A1312 A1311 109 B98557 00 for ATI Radeon HD 5670 HD 5670m HD5670 HD5670m 512MB Graphics Video Card Drive Case|imac 2010|imac a1312imac a1311 - AliExpress
Used - Very Good: PowerColor Radeon HD 5670 Video Card AX5670 1GBD5-HV2 - Newegg.com