M2 16 gb ram vs M4 8 gb ram

Hello ! Please tell me which iPad would be better suited for sculpting in nomad. An iPad Air on an M2 processor with 16 GB of RAM and 1 TB of storage. Or an iPad Pro on an M4 processor with 8 GB of RAM

If you are willing to get an official refurbished one then you could also consider a 5th gen M1 Pro. I’ve got one and it handles Nomad really well. You can probably get a 16G for less than either of new ones. I don’t think there’s much difference in performance with M2.
I’m sure either of new ones will be superb though, if you want a new one.