The Spaniard has nothing but praise for his boss and says his Santiago Bernabeu exit had nothing do with failing to reach meet expectations
The Portuguese will leave the club at the end of the season following three years in the Spanish capital but will finish his final campaign without silverware.
Ramos believes the decision was a personal one and had nothing to do with the added expectation that comes with working for a big club like Madrid.
"I think Mourinho has a lot of experience in the world of football," the 27-year-old told Sport.
"I do not think pressure was a reason for him to make the decision to leave Real Madrid. Everyone chooses his future and is free to take their best route.
"I've always had good words for him because on a personal level, I have said and will continue to say, he's one of the best coaches in the world.
"He knows how to draw and squeeze the most out of each player and that is a virtue that he has transmitted to us from day one."
Ramos then went on to praise Jupp Heynckes and Carlo Ancelotti, but insisted that he does not know who will replace Mourinho on the Bernabeu bench.
"They're two great coaches for. Yet I still do not really know who can come."