Real Madrid phenomenon Cristiano Ronaldo says he gets a bit annoyed by the constant comparisons with Barcelona hitman Lionel Messi, but concedes that the competition drives him.

Ronaldo and Messi finished the season with an astonishing 46 and 50 goals respectively, banging home the strikes at more than one per game, and Ronaldo feels they each contribute to their teams' high statuses.

The Portugal captain told CNN World Sport: "Sometimes it makes me tired...for him too because they compare us together all the time.

"You cannot compare a Ferrari with a Porsche because it's a different engine. You cannot compare them.

"He does the best things for Barcelona, I do the best things for Madrid, so the number (of goals)... everyone says 'it's incredible'. For him and for me because we beat our own records, so it's amazing.

"I think we push each other sometimes in the competition, this is why the competition is so high.

"This is why Madrid and Barcelona are the best teams in the world because everyone pushes each other."

Of Real's La Liga title victory over Barca, he added: "My high point is to win the title here in Madrid.

"It was my first time, so I was so happy because it's my best moment here in Madrid, the most important trophy.

"In terms of individual, it was great for me, the goals that I scored, to break my own record... to do 100 points in the Spanish league, which is a record too.

"It's phenomenal. I think it's hard to have a better year than this one. For me this is the most difficult league in the world.

"To compete with Barcelona, as everyone knows is very complicated and we beat them."