Rigidbody: Freeze All vs InKinematic

If you set a rigidbody to either kinematic or freeze all the position and rotation, it will be unaffected by physics. What are some other consequences freezing verses setting to kinematic?

I can think of one. A kinematic rigidbody will not send collision events, but a frozen one will.

This is the reason I am asking. I want to use the built-in collision detection, but I need to resolve the collision in non-realistic ways. So I want kinematic rigidbodies, but those don't send collision events, so I'm thinking of just freezing the position and rotation.

I'm wondering if there are some performance differences between the two.