Overrate vs Overstate - What's the difference?

As verbs the difference between overrate and overstate

is that overrate is to esteem too highly; to give greater praise than due while overstate is to exaggerate; to state or claim too much.

* over-rate

(en-verb)

To esteem too highly; to give greater praise than due.

(en-verb)

To exaggerate; to state or claim too much.

I think it is overstating matters to say that an hour online is spending all night on the computer.

He was suggested not to overstate at the interview.

* exaggerate

* understate

* overstatement