Bitmain S21 HYD vs S21 Pro

[Raynor]

Hello All,

I've started looking into immersion cooling and wanted to ask - are these two Bitmain Models essentially the same hardware with different cooling system and software tune?
S21 HYD vs S21 pro.

In other words - are they different chip-wise or it's the same thing only the HYD model is tuned to a higher Hashrate.

If it's not the case - I would greatly appreciate if you point out the differences so I can better research it.

Thank you.