Goodbye Kepler: NVIDIA announces that GeForce GTX 600 and 700 series cards will stop receiving new Game Ready Drivers from August 2021 - NotebookCheck.net News
NVIDIA GeForce 600 Series GTX 680, GTX 670 and GTX 660 Ti Reach End-Of-Life
EVGA GeForce GTX 600 SuperClocked GeForce GTX 660 Ti Video Card 02G-P4-3662-KR - Newegg.com
NVIDIA GeForce 600 Series GTX 680, GTX 670 and GTX 660 Ti Reach End-Of-Life