Question: what nvidia cards support ray tracing?
Answer: GeForce GTX 1660 Ti.
GeForce GTX 1660.
Nvidia Titan Xp (2017)
Nvidia Titan X (2016)
GeForce GTX 1080 Ti.
GeForce GTX 1080.
GeForce GTX 1070 Ti.
GeForce GTX 1070.