Techgage reviewed the EVGA GeForce GTX 1660 Ti Xc Ultra Gaming 1080p and 1440p Gaming Performance
A quote from the article:
The second GeForce release to come out in 2019 becomes the GTX 1660 Ti, a Turing-based card that’s just a bit different from the others (as its GTX moniker implies). Gone are the Tensor and RT cores, but retained are the other performance perks that came along with Turing, leading to some surprising performance in select games and benchmarks.EVGA GeForce GTX 1660 Ti Xc Ultra Gaming 1080p and 1440p Gaming Performance Review
NVIDIA dropped RTX features off of the GTX 1660 Ti for the simple fact that the card is not powerful enough to take proper advantage of those features. We were a bit surprised when the 2060 came out with RTX features, but it ultimately delivered enough performance to justify them.