Distinctly different to my ear.

The first is what I would call generic Oxbridge, though I would guess he grew up somewhere in London/the southeast.

The second has a couple of Oxbridge-esque lines near the beginning ('you quickly notice' etc), but mostly sounds like someone from the north of England (East Yorkshire maybe?) that's lived in the southeast for a good few years and had the edges knocked off.

There are some very minor differences, but they're broadly similar. 2 has a few things like dropping the "f" sound from "of" and using a "v" sound for the last consonant of "with" which I would guess are tinges of a London accent

I've nothing to add, other than they both sound like ponces