NVIDIA GeForce GTX 550 Ti Specs | TechPowerUp GPU Database
ASUS GeForce GTX 550 Ti (Fermi) 1GB GDDR5 PCI Express 2.0 x16 SLI Support Video Card ENGTX550 TI DC TOP/DI/1GD5 GPUs / Video Graphics Cards - Newegg.com
GTX 550 Ti 4GB GDDR5 128 Bit PCI-E 2.0 Graphic Card DVI-D HDMI-compatible Games
New 4GB 128bit GDDR5 GTX 550 Ti PC Computer Gaming Graphic Card PCI-Express 2.0 HDMI-Compatible Video Cards with Cooling Fans