Gainward GeForce GTX 660 Ti Phantom – The Silent Beast
Gigabyte Also Launches GTX 660 Ti 3GB and GTX 670 with 4GB Memory | VideoCardz.com
GTX 660 Ti | ZOTAC
NVIDIA GeForce GTX 660 Ti Specs | TechPowerUp GPU Database
NVIDIA GeForce GTX 660 Ti Specs | TechPowerUp GPU Database
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ASUS GTX 660 Ti DirectCU II Specs | TechPowerUp GPU Database