Ivan Rakitic’s first-half strike gave the Catalan club all three points at the Bernabeu, sending Barca 10 points clear at the top of the La Liga table.
The result also saw Santiago Solari’s men fall 12 points behind Barca, failing to close the gap on second-placed city rivals Atletico Madrid.
The papers in Spain were critical of Los Blancos, with AS leading with a headline of ‘Madrid surrenders’.
AS went on to say that Bale was substituted to the sound of boos from the home crowd as Barcelona became the first away team to win four consecutive games at the Bernabeu.
Marca produced the headline ‘Another blow from Barcelona’ as Ernesto Valverde’s men recorded the club’s 96th Clasico win, overtaking Real Madrid.
Mundo Deportivo praised the league-leaders, stating that they are ‘in touching distance’ of winning a 26th La Liga title.
Rakitic completed a quick passing move to finish beyond home goalkeeper Thibaut Courtois on 26 minutes.
The hosts seldom threatened to score a leveller, with former Madrid boss Jose Mourinho claiming ‘it was not the performance of a happy team’.