One main difference is that you could order a computer with an M2 Ultra last week, but you won't be able to order Reality Pro until next year. Apple doesn't talk about numbers until they finalize exactly what will be shipping.

Apple doesn't even tell you the clockspeed of their CPUs in their products. This is utterly not out of character at all. The only reason they talk about all the stuff in the M2 ultra is because they are beating up on Windows laptops.