Reality is, that today "PRO" card are the same GPU than the "Gaming" card but are often clocked lower than said gaming card to give the illusion of more stability when in fact they are just plain slower by design.
It's been that way for some time. I bought a Fire GL in the late 90s for my home built dual Pentium Pro NT4 workstation (very difficult installation). I quickly learned from seeing the components used in London SFX houses that most video editors and compositors were content to use the new generation of consumer cards that were coming out. There were even people tapping into the power of 3DFX and Matrox cards to spead up video rendering and for real time transitions. Suffice to say it was all this PC gaming hardware that killed off SGI and then finally killed off even expensive PC workstations by companies like Integraph. Apple was concentrating on iMacs at the time. Man I remember people raving about the Open GL performance of their workstations when they installed an NVidia Riva (the only PCI card that could access system memory).
Our funny poster above with his D700 '10 times faster than GTX980' doesn't quite understand that being an expert on the Internet doesn't mean you have any real history or experience in the real world. Maybe he can even find a magical Radeon 7970 to run 10 times faster than NVidia's latest card.