The Schalke defender spoke highly of the Real Madrid attacker, while he admitted that his side were simply not good enough in their 6-1 first-leg thumping in Gelsenkirchen
The Portugal international netted twice to take his European tally to 11 this season, while he had a hand in two more goals as the Liga leaders thrashed their opponents at the Veltins Arena to all but confirm their place in the quarter-finals.
"Ronaldo was everywhere. He proved that he is the best player in the world," Howedes told Der Westen.
"He not only scored goals, but he put in an incredible performance overall."
Gareth Bale and Karim Benzema also grabbed doubles as the Santiago Bernabeu outfit ran riot.
Klass-Jan Huntelaar scored a memorable consolation late on but the Schalke defender Howedes admits that the Bundesliga side simply lacked the quality to stop Madrid.
The return at the Santiago Bernabeu takes place on March 18.