Compare the2025 Ram HDVS 2025 GMC Sierra HD

Over 200 people are killed each year when backed over by motor vehicles. The Ram HD offers optional Reverse Stop that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Sierra HD doesn’t offer automatic braking for stationary objects directly to the rear.

The Ram HD’s optional driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Sierra HD doesn’t offer a driver alert monitor.

Both the Ram HD and the Sierra HD have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available four-wheel drive, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

The Ram HD’s corrosion warranty is unlimited miles longer than the Sierra HD’s (unlimited vs. 100,000 miles).

There are over 43 percent more Ram dealers than there are GMC dealers, which makes it easier should you ever need service under the HD’s warranty.

The Ram HD 3500 has a solid front axle with a floating power axle for durability that the Sierra HD 4x4’s independent front suspension and exposed front driveshafts don’t offer.

To reliably power the ignition and other systems and to recharge the battery, the Ram HD has larger alternators than the Sierra HD:

To reliably start during all conditions and help handle large electrical loads, the Ram HD offers larger standard and optional batteries than the Sierra HD:

J.D. Power and Associates rated the Ram HD third among large heavy duty pickups in their 2024 Initial Quality Study. The Sierra HD isn’t in the top three.

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Ram vehicles are better in initial quality than GMC vehicles. J.D. Power ranks Ram first in initial quality, above the industry average. With 52 more problems per 100 vehicles, GMC is ranked 20th, below the industry average.

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Ram vehicles are more reliable than GMC With 5 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks Ram higher than GMC.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that Ram vehicles are more reliable than GMC vehicles. Consumer Reports ranks Ram 9 places higher in reliability than GMC.

The Ram HD’s 6.4 V8 produces 4 more horsepower (405 vs. 401) than the Sierra HD’s 6.6 V8.

The Ram HD’s 6.7 turbo diesel produces 100 lbs.-ft. more torque (1075 vs. 975) than the Sierra HD’s 6.6 turbo V8 diesel.

An engine control system that can shut down some of the engine’s cylinders helps improve the Ram HD V8’s fuel efficiency. The Sierra HD doesn’t offer a system that can shut down part of the engine.

In heavy traffic or at stoplights the Ram HD Gas’ engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. If the conditions warrant or the driver wishes, the system can be manually disabled at any time for the duration of a trip. The Sierra HD doesn’t offer an automatic engine start/stop system.

The Ram HD Regular Cab/Standard Bed Crew Cab’s standard fuel tank has 3 gallons more fuel capacity than the Sierra HD Double Cab Short Bed Diesel’s standard fuel tank (32 vs. 29 gallons). The Ram HD Long Bed Crew Cab’s optional fuel tank has 14 gallons more fuel capacity than the Sierra HD Gas Engine/Crew Cab Diesel’s standard fuel tank (50 vs. 36 gallons).

For better stopping power the Ram HD’s brake rotors are larger than those on the Sierra HD:

The Ram HD’s optional tires provide better handling because they have a lower 60 series profile (height to width ratio) that provides a stiffer sidewall than the Sierra HD’s optional 65 series tires.

The Ram HD has standard front and rear stabilizer bars, which help keep the Ram HD flat and controlled during cornering. The Sierra HD’s suspension doesn’t offer a rear stabilizer bar.

The Ram HD Power Wagon has an active front sway bar, which helps keep it flat and controlled during cornering, but disconnects at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The Sierra HD doesn’t offer an active sway bar system.

The front suspension of the Ram HD uses coil springs for better ride, handling and control than the Sierra HD, which uses torsion bars in front. Coil springs compress more progressively and offer more suspension travel for a smoother ride with less bottoming out.

The Ram HD 3500 has a standard automatic load leveling suspension to keep ride height level with a heavy load or when towing. The Sierra HD doesn’t offer a load leveling suspension.

The Ram HD’s optional drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The Sierra HD doesn’t offer drift compensation steering.

For better handling and stability, the average track (width between the wheels) on the Ram HD is 1.1 inches wider in the front and 1.5 inches wider in the rear than the average track on the Sierra HD.

For better maneuverability, the Ram HD’s turning circle is tighter than the Sierra HD’s:

For greater off-road capability the Ram HD 3500 Long Box Crew Cab has a 1.4 inches greater minimum ground clearance than the Sierra 2500 HD Crew Cab (11.5 vs. 10.1 inches), allowing the Ram HD to travel over rougher terrain without being stopped or damaged.

The Ram HD may be more efficient, handle and accelerate better because it weighs about 200 pounds less than the GMC Sierra HD.

The Ram HD is shorter than the Sierra HD, making the Ram HD easier to handle, maneuver and park in tight spaces:

The front grille of the Ram HD uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The Sierra HD doesn’t offer active grille shutters.

The Ram HD offers available computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Sierra HD doesn’t offer active noise cancellation.

The Ram HD Crew Cab has 1.7 inches more front hip room, 2.5 inches more rear hip room and .3 inches more rear shoulder room than the Sierra HD Crew Cab.

For enhanced passenger comfort on long trips the Ram HD Mega Cab’s available rear seats recline. The Sierra HD’s optional rear seats don’t recline.

The Ram HD has stake post holes, to allow the containment of tall, light loads. The Sierra HD doesn’t offer stake post holes.

Maximum trailer towing in the GMC Sierra HD is limited to 31580 pounds. The Ram HD 3500 Long Box Regular Cab offers up to a 36610 lbs. towing capacity.

The Ram HD has a higher standard payload capacity than the Sierra HD:

The Ram HD has higher optional payload capacities than the Sierra HD:

The Ram HD’s standard speed-sensitive wipers speed up when the vehicle does, so that the driver doesn’t have to continually adjust the speed of the wipers. The Sierra HD’s standard manually variable intermittent wipers have to be constantly adjusted.

The Ram HD’s LED headlights produce a whiter, brighter light (up to 3x) using five times less power than the Sierra HD’s standard halogen headlights. LED lights also light instantly and last over twenty times longer than halogen.

To help drivers avoid possible obstacles, the Ram HD offers optional cornering lights to illuminate around corners when the turn signals are activated. The Sierra HD doesn’t offer cornering lights. The Ram HD also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The Ram HD stands out above the GMC Sierra HD by offering not one, but two Qi-compatible phone chargers. This convenience helps travelers with multiple devices to keep powered up on-the-go. Wireless charging eliminates lost or cluttered charging cables and and two of them provide more flexibililty. Both vehicles also offer Qi charging for the rear passengers.

J.D. Power and Associates rated the Ram HD third among large heavy duty pickups in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The Sierra HD isn’t in the top three.

Motor Trend selected the Ram HD as their 2020 Truck of the Year. The Sierra HD has never been chosen.