i gruess with proper tweaking and new drivers the 3080 can reach 100mh easily if not more with the same efficiency
The chinese are doing 115 mhs, so they must know something we dont yet and many of them got amperes 2 weeks before release.
920GB/s bandwidth is required to achieve 115MH/s theoretically. That's 23GT/s.
In reality though, the efficiency is about 85-90%, so you'll need 25-26GT/s to get 115MH/s. So its possible on the 3090, but not on the 3080.
Compare it to Polaris.
32MH/s requires 256GB/s bandwidth theoretical. 256GB/s bandwidth needs the memory clocked at only 8GT/s. But user results show they need the memory to be 8.8, or even 9GT/s to reach that.
It's unrealistic to expect 115MH/s. They are liars.