Newton displayed rare arm strength and improved footwork during a 48-minute workout in front of representatives from all 32 teams (approximately 125 personnel members), including five head coaches -- Ron Rivera (Carolina Panthers), John Fox (Denver Broncos), Marvin Lewis (Cincinnati Bengals), Ken Whisenhunt (Arizona Cardinals) and Pat Shurmur (Cleveland Browns).
Unofficially, Newton threw 53 passes with receivers running routes and completed 42 of them with a few drops and several overthrows.
Fitzpatrick, meanwhile, completed 57.8 percent of his passes for 3,000 yards and 23 touchdowns. He also threw 15 interceptions.
The Associated Press contributed to this report.