This article reminded me of a quote in another article from a decade ago.
"AMD and Nvidia release numerous driver builds every year. If each of these drivers were to increase 3D speed by 10 percent, the graphics cards would double their performance in a few months. "
https://www.tomshardware.com/reviews/GeForce-Catalyst-overclocking,2037.html
They backtrack a little bit, but I still laugh when I see Nvidia/AMD report an increase of 10% on every little driver update.
For a trip down memory lane and a display of how the chart making skills at Tom's has improved let me reintroduce;
https://www.tomshardware.com/reviews/GeForce-Catalyst-overclocking,2037-14.html