Both squads have secured spots in the Eastern Conference standings and rested most of their starters in the contest.
Maurice Evans added 15 points for third-seeded Atlanta.
Cleveland, holders of the NBA's best record and the top overall seed, got 15 points in the loss from Jamario Moon.
The Cavs will face the Chicago Bulls in the first round.
Notable deaths of 2014 [PHOTOS]
LeBron James reveals his new Nike shoes