NVIDIA Announces GeForce GTX 550 Ti | Windows Experience Blog
MSI GeForce GTX 550 Ti Cyclone II OC 1GB GDDR5 PCIe Reviews, Pros and Cons | TechSpot
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NVIDIA GeForce GTX 550 Ti Specs | TechPowerUp GPU Database
GV-N550OC-1GI Gigabyte GeForce GTX 550 Ti 1GB GDDR5 PCI Express x16 2.0 Video Card