Both Ford and GMC offer impressive engine lineups catering to heavy-duty work or efficiency. The Ford provides four powertrain options in the lineup, while GMC has just two. The 2025 Ford Super Duty base model comes with a 6.8-liter V-8 that produces 400 horsepower and 455 lb-ft of torque. For more power, you may prefer the 7.3-liter V-8 that produces 430 horsepower and 485 lb-ft of torque, which comes standard on the XLT trims and higher.

That being said, higher trims also have the option of a diesel 6.7-liter V-8. The standard output version produces 475 horsepower and 1,050 lb-ft of torque. The high-output version produces 500 horsepower and 1,200 lb-ft of torque. Each engine pairs with a 10-speed automatic transmission with a choice of single and dual-rear-wheel axles.

The GMC Sierra 2500 HD comes with a standard 6.6-liter V-8 engine that produces 401 horsepower and 464 lb-ft of torque. It pairs with a 10-speed automatic and rear- or four-wheel drive. An optional Duramax diesel 6.6-liter V-8 engine produces 470 horsepower and 975 lb-ft of torque. For more power, you’ll need to move up to the 3500HD.

The EPA doesn’t test trucks as heavy as these, but independent testing can give you an idea of performance. Car and Driver has rated the diesel engines for both models, which are believed to be the most efficient in the lineup. They rate the Super Duty at 20 mpg with the high-output diesel engine and the GMC at 17 mpg with the diesel engine.

The Super Duty can tow up to 40,000 pounds with a gooseneck hitch, 35,000 pounds with a fifth wheel setup, or 30,000 pounds with a standard hitch. It has a maximum payload of 8,000 pounds when properly equipped. Ford offers special towing features like onboard scales with a Smart Hitch and trailer navigation.

The Sierra 2500HD comes with a single-rear-wheel axle that can tow up to 22,500 pounds. To get the maximum rating, you need to choose the diesel engine, rear-wheel drive, a regular cab, a dual-rear-wheel axle, and a gooseneck hitch. Equipped with a fifth-wheel hitch, the GMC can tow up to 32,000 pounds. If you need more towing capacity, you’ll need to upgrade to the GMC Sierra 3500HD to tow up to 36,000 pounds.

The Ford base trim is pretty basic, but higher trims get better upgrades. This includes nearly-flat reclining front seats so drivers can get a good rest when stopping overnight on longer drives. The truck comes in a choice of a three-seater Regular Cab, an extended six-seater SuperCab, or a four-door six-seater SuperCrew cab, along with two bed sizes (a 6.8-foot or 8-foot bed). There’s clever storage throughout the cabin, but the Crew Cab adds a handy lockable box under the back seat.

The Sierra 2500HD has a massive dashboard with user-friendly tech. Most trims come with a split-folding front bench or optional bucket seats and a full center console. A head-up display, heated and ventilated front seats, and a heated steering wheel are optional, as is a wireless phone charger. If you want a luxury experience, you’ll need to splurge on the new Denali Ultimate trim to get leather, Paldao wood trim, and a suede headliner.

The GMC is available with a choice of three-seater Regular Cab, six-seater Double Cab, or six-seater Crew Cab. The bed sizes also depend on the cab. For example, regular cabs have a longer 8.2-foot bed, while the Double Cab and Crew Cab can have either a standard 6.8-foot bed or an 8.2-foot bed.

The base Ford comes with a standard 8.0-inch touchscreen, but higher models get a larger 12.0-inch. The latter comes with wireless Apple CarPlay and Android Auto and all models have a B&O premium sound system (a standard four-speaker or an available 18-speaker. A 12.0-inch digital gauge cluster is optional.

The GMC comes with a standard 8.0-inch touchscreen with Apple CarPlay and Android Auto. While base trims are certainly no-frills, you can add an optional 120-volt outlet and a mobile hotspot. Higher models come with a 13.4-inch touchscreen with wireless smartphone connectivity. If you have a model with the larger screen, you can add available built-in navigation, a Bose sound system, SiriusXM satellite radio, and a back-seat entertainment system.

The Ford Super Duty ranges from $47,395–$80,160. It includes a limited warranty for three years or 36,000 miles, a gas powertrain warranty for five years or 60,000 miles, and diesel powertrain warranty for five years or 100,000 miles. The GMC is slightly more expensive, ranging from $48,495–$95,795. It offers the same warranty period as the Ford, but offers complimentary scheduled maintenance for the first year.

If you want maximum towing, a wider engine lineup, and an ultra-practical truck, the Ford is an excellent choice. The best way to decide for yourself is to take it out for a test drive. Visit Planet Ford Dallas to schedule a test drive of the new Ford Super Duty today.