Ford F-450 (2020) is 698 mm (27.48 inch) longer, 360 mm (14.17 inch) wider, 102 kg (225 lbs) lighter and has 219 liters (7.73 ft3) bigger cargo space than GMC Sierra 3500HD (2020).
GMC Sierra 3500HD (2020) is 6 mm (0.24 inch) higher than Ford F-450 (2020).