Real Madrid are from another planet, while FC Barcelona's squad have lost their hunger for success, says former Los Blancos boss Fabio Capello.
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The Russia coach, who coach Real from 1996-97 and 2006-07, has described Carlo Ancelotti's side as a 'machine' while their opponents 'are just teams'.
"The most important thing is maintaining what they have achieved since the beginning of the season. One could say that other team's are not at Madrid's level," he told Spanish radio Onda Cero, as quoted AS.
"Real Madrid is a machine, the rest are just teams. Teams with great quality players, but not the same machine that Madrid is.
"Real Madrid are from another planet. This year Ancelotti has done a fantastic job. He has the team believing that they are the best.
"Madrid are desperate to win every game, they have everything, they defend well, great midfield and a great talent in attack. Possibly one of the best teams of all times".
Capello then analysed Barcelona's current situation and feels Luis Enrique's squad with many player who have won everything have a motivational problem.
"I don't see this Barcelona side with the same hunger to recover the ball or with the same quick passing game as previous Barça sides," the Italian added.
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Real lead Barcelona by four points in La Liga, but the Catalan giants can cut the gap if they beat Cordoba on Saturday, while the Los Blancos play at the Club World Cup.
Do you think Real Madrid can beat Barcelona to the La Liga title this year? Have your say in the comment section below.