The Miami Heat moved a step closer to progressing to the Eastern Conference Finals, rolling past the Philadelphia 76ers in a 120-85 win on Tuesday.

The Heat comfortably took a 3-2 series lead as the Sixers collapsed in the third quarter, going three-of-12 from the floor for the period aside from Joel Embiid.

While the Heat started strong, Embiid, James Harden and Tyrese Maxey were taken out with eight minutes remaining in the fourth quarter.

Jimmy Butler was able to get to his spots on the floor, going nine-of-15 shooting on the way to 23 points, nine rebounds and six assists for the night.

As a team, Miami had a 20-point advantage (56-36) for points in the paint while seven players scored in double figures in the 35-point win, the joint largest margin of victory in the playoffs this season.

Suns surge in second-half to Game 5 win

The Phoenix Suns also claimed an important Game 5 victory on Tuesday, defeating the Dallas Mavericks 110-80.

Similar to the Philadelphia 76ers in the earlier game, the Mavericks started out ice cold and turned the ball over following the main break, giving up a double-digit lead to start the third quarter.

What was a one-point margin lead for the Suns at half-time quickly blew out to 17 by the middle of the third, when Deandre Ayton scored to make it 67-50.

The Western Conference's first seed did not look back from there, as Devin Booker finished the game with 28 points, seven rebounds and two steals.

Dribble penetration and offensive rebounding created good looks for the Suns, who shot 37.5 per cent from beyond the arc, while the Mavs conversely shot at 25 per cent.