What are the similarities between the structure of the Roman republic and the Athenian polis under pericles?

What are the similarities between the structure of the Roman republic and the Athenian polis under pericles? What are the differences?

At the time of Pericles, Rome and Athens had similarities:

in the elective nature of important positions of the state with a certain term of their office; in endowing popular assemblies with supreme power; in the preservation of slavery with social inequality between slaves and free citizens, as well as between men and women.

The differences between these republics were:

in varying degrees of democracy – more among the Athenians and less among the Romans, because the power of the people with the accountability of elected statesmen, control over their work was stronger in Athens than in Rome, where accountability and public discussions were not provided.