Someone correct me if I’m wrong, but as far as I’m aware, things like FirePro and Quadro aren’t ever really “useful” as far as specific features are concerned. I’m not aware of a single tool that would really benefit in any meaningful way from it, as opposed to just throwing a GTX 1080 in there or something.
Texture baking is all CPU or CUDA, lightmap baking is all CPU, Maya/Zbrush is going to just use the CPU mostly (any GPU whatsoever will suffice).
The one use for the rendering market that those cards have are for things like render farms, where you might throw GPU rendering on it. But that’s not really useful for game engines, at all. My render server barely even has a GPU, I just threw a passively cooled GT 710 in there and it made zero impact on lightmap baking speed.
Honestly, my guess its it’s just marketing fluff to make it a nice, even 2 and 2 in their comparison slide. It’s not worth a single penny of that extra $400 if you don’t plan on using a GPU rendering engine like Redshift or something. Just get the fastest high end, standard gaming card you can. Considering the numbers you were throwing out there, a GTX 1080 Ti is probably your best bet. Fastest on the market, and so you can take advantage of CUDA if the need arises.