2025 GMC Sierra 3500 vs. 2024 RAM 3500 Review

Picture of the 2025 GMC Sierra 3500

2025 GMC
Sierra 3500

MSRP*: $47,500 to $96,400
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Picture of the 2024 RAM 3500

2024 RAM
3500

MSRP*: $46,255 to $79,140
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MPG - City Info not available Info not available
MPG - Hwy Info not available Info not available
Seating Capacity 2 - 5 seats 2 - 6 seats
Cargo Space 69.5 - 83.5 ft3 57.5 - 74.9 ft3
Engine
  • 470-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
  • 420-hp, 6.7-liter, Straight 6 Cylinder Engine (Diesel Fuel)
Transmission Automatic Automatic
Drivetrain Four Wheel Drive, Rear Wheel Drive Four Wheel Drive, Rear Wheel Drive
Horsepower 401 - 470 hp 370 - 410 hp
Towing Capacity 20,000 lbs 14,290 - 23,000 lbs
Exterior Length 236.6 - 266.8 in 232.0 - 260.8 in
Exterior Width 81.8 - 81.9 in 79.4 in
Leg Room Front 44.5 in
Rear 35.2 - 43.4 in
Front 40.9 in
Rear 40.2 - 43.1 in
Head Room Front 43.0 - 43.1 in
Rear 39.9 - 40.1 in
Front 39.8 - 40.9 in
Rear 39.8 - 40.3 in

*MSRP and Invoice prices displayed are for educational purposes only, do not reflect the actual selling price of a particular vehicle, and do not include applicable gas taxes or destination charges.

Comparison Review

Comfort
Passengers in the extended cab will be able to stretch out a lot more with the GMC Sierra 3500 than the RAM 3500. The GMC Sierra 3500 will be a favorite with tall drivers and their passengers, since it has much greater head- and legroom than the RAM 3500.

Cost
There are a lot of factors to consider when calculating the overall cost of a vehicle. The main consideration is Manufacturer's Suggested Retail Price (MSRP). Whether you pick the GMC Sierra 3500 or the RAM 3500, it's going to cost you about the same.

Dimensions
Since the GMC Sierra 3500 is much wider than the RAM 3500, finding a wide enough spot in a parking lot may be a bit more challenging. For some people, bigger is better. If that's the case for you, then you'll be happier with the GMC Sierra 3500, which is slightly longer than the RAM 3500.

Handling
The GMC Sierra 3500 has a larger turning radius than the RAM 3500, making it slightly more difficult to maneuver in and out of tight spots.

Performance
When considering towing capacity, the GMC Sierra 3500 is clearly the choice over the RAM 3500 for pulling heavy loads. In terms of horsepower, it's a virtual tie between the GMC Sierra 3500 and the RAM 3500.

Powertrain
With somewhat higher torque, the engine of the GMC Sierra 3500 transmits a bit more power to the wheels than the RAM 3500.

Utility
In terms of seating, you'll be able to fit the same number of people in the GMC Sierra 3500 as you will the RAM 3500. The GMC Sierra 3500 has a slightly greater cargo capacity for your lumber or other material than the RAM 3500.