Yes, there is. The Max has double the memory bandwidth. That's a serious factor in future proofing.
This is exactly why I went for the max even though I don't really need it today. My 2012 rMBP has lasted me 9 years because I pimped it with extra ram and ssd back then. Gone for the 16" m1 max 32/512. Storage - I have a NAS plus external fast drives if I need so 512 saved a bit.
Really interested to see the reviews and if that doubling of memory bandwidth makes a big real world difference. With the apple silicon architecture it really should.