Hi virensaxena ,

As far as I know - and this is clearly NOT official information -, the newest versions (2021Rx) can work with almost as many cells as the 2019Rx releases, provided that the GPU (or more precisely, the amount of VRAM) is the same. The 2020Rx versions were having memory management errors, thus the maximum available cell count was much lower.

Charudatta Bandgar might be able to confirm or deny my theory/experience.