GMC Sierra 1500 trim comparison
2024 GMC Sierra 1500 Denali vs AT4X
The Sierra 1500 Denali starts at $66,600 while the AT4X is $79,200. That $12,600 gap buys 7 meaningful differences.
This is a powertrain and drivetrain change. The AT4X gets the 3.0L I6 diesel Turbo and 4WD, so the $12,600 is buying a different driving experience, not just nicer trim.
This is a real hardware fork, not just a trim-label shuffle. The Denali is enough if the 5.3L V8 with RWD already fits your routine; the AT4X only earns the jump when the 3.0L I6 diesel Turbo and 4WD setup is the point of the upgrade.
If you are budgeting this move monthly, the jump from the Denali to the AT4X is about $222/month on a 60-month loan at 6.5% APR with 10% down. That works out to roughly $13,320 more by the time interest is counted. If that different powertrain is not part of your real use case, the cheaper trim keeps more money in your pocket without changing the core experience you need.
Lock one trim, change the other side, and move through exact pair pages without resetting back to the full lineup every time.
Who notices the difference
The higher trim starts to make more sense when you tow, haul, or merge with enough load that the stronger powertrain matters.
When both feel the same
The Denali and AT4X are mechanically identical where it counts: the same 10-speed shiftable automatic transmission.
The upgrade math
You are paying $12,600 for 6 measurable differences, which works out to about $2,100 per change.
Key Differences at a Glance
This is the fast read: price, power, efficiency, and the feature flips most likely to change the answer.
Every Difference, Side by Side
This is the full read behind the quick decision signals above: the complete hardware, comfort, and equipment story. 7 specification differences, 0 shared.
Full Specification Comparison
Specifications reflect available data as of early 2024. Confirm details with an authorized dealer before purchasing.
| Spec | Denali | AT4X |
|---|---|---|
| Pricing | ||
| MSRP | $66,600 | $79,200 |
| Powertrain | ||
| Engine | 5.3L V8 | 3.0L I6 diesel Turbo |
| Horsepower | 355 hp | 305 hp |
| Torque | 383 lb-ft | 495 lb-ft |
| Transmission | 10-speed shiftable automatic | 10-speed shiftable automatic |
| Drivetrain | RWD | 4WD |
| Fuel Economy | ||
| City MPG | 16 | 19 |
| Highway MPG | 20 | 20 |
| Combined MPG | 18 | 19 |
| Fuel Tank | 24.0 gal | 24.0 gal |
| Dimensions | ||
| Curb Weight | 4,890 lbs | 5,890 lbs |
| Wheelbase | 147.0" | 148.0" |
| Length | 231.9" | 232.9" |
| Width | 81.2" | 81.2" |
| Height | 75.5" | 78.7" |
| Truck Specs | ||
| Cab Type | Crew Cab | Crew Cab |
| Bed Length | 5.8 ft | 5.8 ft |
| Safety | ||
| NHTSA Overall | 5/5 stars | 5/5 stars |
| Warranty | ||
| Bumper-to-Bumper | 3yr/36k | 3yr/36k |
| Powertrain | 5yr/60k | 5yr/60k |
| Corrosion | 6yr/100k | 6yr/100k |
| Roadside Assistance | 5yr/60k | 5yr/60k |
Data sources: licensed third-party automotive data, EPA fueleconomy.gov, NHTSA, and official manufacturer materials. Values marked est. are estimated.
2024 GMC Sierra 1500 Denali vs AT4X Questions Shoppers Ask
Use this page for the direct trim answer, then zoom back out to the GMC Sierra 1500 lineup, the GMC brand hub, the Full-Size Trucks, the how to pick a trim guide, or our mid-trim value research when you need the bigger shopping path behind this one matchup.
How much more does the 2024 Sierra 1500 AT4X cost than the Denali?
The AT4X starts at $79,200 compared to $66,600 for the Denali (both Crew Cab RWD). That is a $12,600 difference, or approximately $222/month more on a 60-month loan.
Do the 2024 GMC Sierra 1500 Denali and AT4X have the same engine?
No. The Denali uses a 5.3L V8 (355 hp, 383 lb-ft), while the AT4X has the 3.0L I6 diesel Turbo (305 hp, 495 lb-ft). Both pair with the same 10-speed shiftable automatic.
Does the 2024 Sierra 1500 Denali come with 4WD?
No. The Denali comes standard with RWD while the AT4X has 4WD. This affects traction, fuel economy, and curb weight.
Is the 2024 Sierra 1500 Denali or AT4X safer?
Both share the same GMC Sierra 1500 platform with an overall 5-star NHTSA safety rating. Safety ratings are model-level and identical across trims. The trim choice affects comfort and features, not crash protection.
What warranty does the 2024 GMC Sierra 1500 come with?
All 2024 GMC Sierra 1500 trims, including both the Denali and AT4X, come with GMC's standard warranty: 3yr/36k bumper-to-bumper and 5yr/60k powertrain coverage. Warranty does not vary by trim level.
Is the 2024 GMC Sierra 1500 AT4X worth $12,600 more than the Denali?
The AT4X changes both the engine and drivetrain for $12,600 more. That is a hardware upgrade, not just a feature bump.
Which 2024 GMC Sierra 1500 trim gets better fuel economy, the Denali or the AT4X?
The AT4X is the more efficient of the two at 19 combined MPG, versus 18 for the other trim. That matters most if you are balancing running costs against the extra power, drivetrain, or comfort equipment tied to the pricier trim.
The Full Story Behind This Price Gap
Use the direct answer above for this exact matchup, then use these guides to understand whether you are really looking at a feature step-up, a package shuffle, or the point where the lineup starts changing in a meaningful way.
What $12,600 Gets You
The Sierra 1500 AT4X is a clear upgrade over the Denali. The $12,600 price increase gets you the 3.0L I6 diesel Turbo engine (+-50 hp) and 4WD -- real functional changes, not just cosmetics.
Denali vs. AT4X: Day-to-Day
The AT4X runs a 3.0L I6 diesel Turbo instead of the Denali's 5.3L V8. That means -50 more horsepower and 112 more lb-ft of torque. Noticeable when merging or hauling, less so around town. Stepping up to the AT4X gets you 4WD. For truck buyers in northern climates or those who tow regularly, this is a functional upgrade worth considering.
Fuel Economy Comparison
The Sierra 1500 AT4X gets 1 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $122 per year or $610 over five years of ownership.
Summary
The Sierra 1500 AT4X costs $12,600 more than the Denali (about $222/month more on a 60-month loan). That buys 6 meaningful changes at $2,100 per change. Whether that trade-off is worth it depends on which features matter to your daily driving.
Trim-Matched Accessories
These add-ons are split by trim intent so the recommendations follow the actual use case, not just the same repeated product block.
GMC Sierra 1500 Denali
Value-trim add-onsThese picks fit the Denali best when the goal is covering the daily-use gaps without paying up to the next trim.
GMC Sierra 1500 AT4X
Step-up trim add-onsThese picks suit the AT4X when you want the accessories to match the nicer cabin, broader utility, or more premium use case.
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Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material for the 2024 model year. Actual pricing, features, and availability may vary by region and dealer. Always confirm details with an authorized dealer before making a purchase decision. TrimAtlas is not affiliated with GMC or any dealership.
Page updated 2026-03-18. Verify equipment, pricing, and regional availability with the manufacturer or dealer.