They blew Real Sociedad apart in the first half at the Santiago Bernabeu, taking the lead inside a minute through Lucas Vazquez and finding themselves four goals ahead by the interval.
Dani Carvajal says there is no way to stop Paris St Germain's Brazilian forward Neymar and Real Madrid have to hope he is off his game when the teams meet in the Champions League last 16 on Wednesday. "He lives for that, for scoring goals, and today he showed with his three goals that you need to watch out for him", Zidane said.
"Neymar is a superb player, maybe he will be the best in the world in a few years, and Real Madrid need the best", the Spanish newspaper Marca quoted Ronaldo as saying.
Without their leading scorer Willian Jose due to injury, and with a awful past record at the Bernabeu, the visitors quickly crumbled.
Real goalkeeper Keylor Navas was not being threatened at all as the shell-shocked visitors continued to stand off and a fourth goal inevitably arrived before the break, with Ronaldo rising highest to powerfully head home Luka Modric's right-wing corner.
They could not keep up the same intensity after the restart, however.
North Korea's Kim invites South Korean president for summit: South Korea
Her presence helped the theme of Korean unity to dominate the opening ceremony as the two Koreas marched under one flag. For now, America seems unlikely to come to the negotiating table with North Korea at the Olympics.
Real are having a shocking season in La Liga - despite securing title and Champions League glory last term - and a major overhaul is expected in the summer. "Let's leave the whistles to one side". Ex-Madrid midfielder Asier Illarramendi volleyed home from close range late on.
Brazil playmaker Neymar fired home the game's only goal midway through the second half and twice hit the woodwork as Unai Emery's side registered their 14th win in their last 15 games in all competitions.
The LaLiga holders move above Valencia into third following their win, but they are 16 points behind leaders and rivals Barcelona, leaving the Champions League as their main focus.
The Portuguese legend, now 33, had 20 goals in 27 games before Saturday night's clash with Real Sociedad, but only eight of those strikes had come in La Liga.
"It was an intense game, we were always putting the work in". Ivan Ramis scored in stoppage-time to give surprise package Eibar a 1-0 victory at Leganes that leaves them sixth.