GMC Sierra 1500 (2017) is 18 mm (0.71 inch) wider, 1321 kg (2,912 lbs) lighter and has 315 liters (11.12 ft3) bigger cargo space than Nissan Armada (2014).
Nissan Armada (2014) is 55 mm (2.17 inch) longer and 114 mm (4.49 inch) higher than GMC Sierra 1500 (2017).