Chevrolet Tahoe (2018) is 228 kg (503 lbs) lighter than GMC Sierra 2500HD (2020).
GMC Sierra 2500HD (2020) is 803 mm (31.61 inch) longer, 33 mm (1.30 inch) wider, 134 mm (5.28 inch) higher and has 263 liters (9.29 ft3) bigger cargo space than Chevrolet Tahoe (2018).