GP102 had more Quadro/Pro Branded SKUs/Binnings and one consumer SKU for the runt die samples that did not make the binning grade to get branded Quadro and so that became the 1080Ti. And the more than one 1080Ti variant was because that was VRAM capacity and memory clocks related for market segmentation reasons!

And then Nvidia created Volta for the Data Center and AI as that had the first generation Tensor cores in a GPU.

TU102 was the same and for Quadro at the high end with some consumer binning as well and even the top end TU104 was initially reserved for Quadro until the Turing generation cards were getting ready to be replaced by the Ampere cards. And the Top end TU104 binning eventually was released for gaming usage(under the Super or Ti Branding).

Nvidia's Pro Graphics Workstation market domination has given Nvidia the funding to create those Giant Monolithic Tape-Outs and Billions for the mask-sets for that every generation. And maybe the gaming revenues were large relative to non gaming at one time but not any longer and most all of Nvidia's later acquisitions of other companies were for the Data Center Market and not consumer/gaming!

Gamers have some sort of collective Myopia with regards to Nvidia's focus on gaming only and gamers! And Nvidia's/Tech Press's marketing focus helped establish the appearance of Nvidia as a gaming only company. But look at Jensen's Keynotes over the last many years and even at consumer/gaming focused events and Jensen's Keynotes were/are mostly AI/Enterprise and cloud services focused, much to the chagrin of gamers!