Amazon.com: Epic IT Service - AMD Radeon HD 5770 1GB GDDR5 Mac Edition, for Mac Pro 1,1 to 5,1 Models, macOS up to High Sierra (Attn: Legacy Model) : Electronics
ATI AMD Radeon HD 5770 1GB GDDR5 Graphics Card ATI-102-C01002(B) | eBay
New gpu day, upgrading from a HD 5770 to a gtx 1050 2gb. Not an impressive upgrade for most but its a massive upgrade for me. : r/pcmasterrace
ATI Radeon HD 5770 Mac Edition Specs | TechPowerUp GPU Database
Amazon.com: Sapphire Radeon HD 5770 1 GB DDR5 2DVI/HDMI/DisplayPort PCI-Express Video Card 100283-3L : Electronics
User manual Gigabyte Radeon HD 5770 (English - 32 pages)