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GIGABYTE GeForce GTX 660 Ti Video Card GV-N66TOC-3GD - Newegg.com
GIGABYTE GeForce GTX 660 Ti Windforce OC - Bjorn3D.com
Gigabyte GTX 660 OC Video Card Review | Hardware Asylum
A quiet card with a lot of spirit, the Gigabyte GeForce GTX 660 Windforce OC - PC Perspective
Gigabyte GeForce GTX 660 WindForce 2x OC Spotted in Malaysia - Clocked at 1098MHz