mMIMO Thoughput calculation


May be a fundamental question.

Assume I have two radios, one has 32x32 mMIMO, and the other one is 64x64 mMIMO. Both support 16 layers in DL and 8 layers in UL. Is there any difference when it comes to max cell throughput in both these radios? trying to figure out how the MU-MIMO impacts in this?