If you are running an Ubuntu system with an older GPU and are curious about upgrading but unsure if it is worth it, Phoronix has a great review for you.  Whether you are gaming with OpenGL and Vulkan, or curious about the changes in OpenCL/CUDA compute performance they have you covered.  They even delve into the power efficiency numbers so you can spec out the operating costs of a large deployment, if you happen to have the budget to consider buying RTX 2060's in bulk.

"In this article is a side-by-side performance comparison of the GeForce RTX 2060 up against the GTX 1060 Pascal, GTX 960 Maxwell, and GTX 760 Kepler graphics cards."

Here are some more Graphics Card articles from around the web:

Graphics Cards