Name                                    Chip                    Memory    Shaders    TMUs   ROPs    Base Clock    Boost Clock    Memory Clock
NVIDIA GeForce RTX 3080    GA102-200-KD-A1    10 GB    8704    272       96    1440 MHz    1710 MHz    1188 MHz
NVIDIA GeForce RTX 3080 Ti    GA102-300-A1            20 GB    10240    320       112    1410 MHz    1740 MHz    1188 MHz
NVIDIA GeForce RTX 3090    GA102-300-A1            24 GB    10496    328       112    1395 MHz    1695 MHz    1219 MHz

https://www.techpowerup.com/gpu-specs/nvidia-ga102.g930

On techpowerup ga102 page has this table on 3080ti, how much this might be true that is another thing hehe but I somehow believe this table to be spot on. March next year perhaps? I don't think AMD will have anything in this bracket so nvidia will charge whatever they want. I still think 10gb is not enough in 2 years time, it is today and probably next year too, getting a 10gb now and reselling in 2 years is not something i would like to do. The only thing that remains is what will be the price of the 20gb, I predict maximum $849 which if you think about is not that bad, charging $899 or $999 might be just too much for it.