GNU/Linux Ubuntu 18.04 Install ZOTAC GTX 1660 SUPER Driver
How to Install ZOTAC GeForce GTX 1660 SUPER Driver for Ubuntu 18.04 Bionic LTS.
The ZOTAC GTX 1660 SUPER Ubuntu Bionic Driver Setup is a breeze, requiring just a few straightforward Shell Commands to complete.
Especially relevant: this is the Recommended Ubuntu Driver Setup for All the GeForce 1660 SUPER powered CPUs.
Finally, with the nvidia-settings Tool you can configure Brightness, Gamma, XVideo attributes, Temperature, and OpenGL.

ZOTAC Geforce 1660 SUPER Driver Ubuntu 18.04 Setup Guide