The entire question is in the title .
It's the case for the solar system but is it always the case ? Can a planet do a revolution faster than another that is closer to the center ?
As far as I searched , it's not but I prefer ask here to be sure.
Of course I'm talking about similar orbits (all with the same eccentricity). (When I'm talking of the center, I mean the body in the center (in general a sun), even if it's not always the center)