Not that it matters, but I misspoke -- the special Quadro drivers were called Maxtreme and were unrelated to Nitrous -- probably predated it.
nVidia used to extol the virtues of the drivers saying they were the main reason to buy Quadros… and then after one max update (maybe v2010 - can’t remember) they took six months to release the drivers so you had to use the regular nvidia drivers all that time. After that release, I think they stopped with Maxtreme altogether. Maybe because Nitrous was born.