Alleged laptop data has been leaked that mentions an Nvidia GeForce GTX 1660 Ti with Max-Q design. Although a mobile version of the Turing-based graphics card has been expected for some time now, a Max-Q variant is a new development. Max-Q technology aims to improve energy efficiency but at the cost of performance.
https://www.notebookcheck.net/Nvidia-might-release-a-Max-Q-version-of-the-mobile-GeForce-GTX-1660-Ti-GPU.415020.0.html