>>715160252Nvidia simply lucked into being the default choice of OEMs because they always bought processors from Intel, and Intel did not want them buying anything from AMD outside of budget systems.
Nvidia realized that because of that, they could compromise graphical fidelity without a penalty from consumers, and then because of that 'feature' they could seriously undercut their competition posting similar 'performance' numbers with significantly worse hardware, hoping no one would notice the graphical quality loss. Which became easier over time as Nvidia's money shifted the narrative from "Nvidia is cheating" to "You don't care about visual quality anyway, Nvidia are innovative".
AMD tried to counter with RDNA which halved their compute power without seriously compromising raster game performance, but with that the features they had demoed to use GCN's extra compute power, like frame generation, post processing effects, and real time ray tracing went out the window. Which didn't seem like a big deal at the time because no developers had adopted them anyway.
Of course as soon as AMD did that, Nvidia introduced their own ray tracing, and post processing effects, and were able to get devs on board because of their greater market share.