The center scored 29 points and had 13 rebounds during the team's 116-101 win over the Portland Trail Blazers last night.
Harden, who added 33 points, told reporters: "Dwight makes the whole game so much easier for each teammate. He draws double teams. He's a great passer. He dominates the post and he can score it. He does everything."
Head coach Kevin McHale added: "That was a tough one but we got a big win here tonight. James and Dwight had tremendous games."
The Rockets face the Los Angeles Lakers tomorrow.