You're kidding? So they called it the RTX 6000, then called it the RTX A6000 for ampere, then back to RTX 6000 for Ada?
Why do they do this? Sometimes consumer products are versioned weirdly to mislead customers (like intel cpus) - but these wouldn't even make sense to do that with as they're enterprise cards?
Actually the first one is called Quadro RTX 6000, while the Ada one is just RTX 6000 without "Quadro" in front. Not that it makes the naming make much more sense.
According to GPT-4 the next generation one will be called Galactic Unicorn RTX 6000 :D