Dell Precision 3551 vs Asus ROG Zephyrus G15
Head-to-head specifications
| Metric | Dell Precision 3551 | Asus ROG Zephyrus G15 | Difference |
|---|---|---|---|
| Geekbench 6 multi-core | 5,500 | 8,600 | -36.0% |
| Processor | Intel Core i5-10400H | AMD Ryzen 9 5900HS | — |
| Graphics | Nvidia Quadro P620 | Nvidia RTX 3070 | — |
| Display | 15.6" 1920x1080 | 15.6" 2560x1440 | — |
| Battery life (h) | 10 | 8.5 | +17.6% |
| Weight (kg) | 1.89 | 1.90 | -0.5% |
| RAM / storage (base) | 8GB / 256GB | 16GB / 1024GB | — |
| Max configuration | 32GB / 1024GB | 32GB / 1024GB | — |
| Operating system | Windows 10 Pro | Windows 10 Home | — |
| Price (USD) | $1,299–$2,099 | $1,800–$2,500 | -27.8% |
- Asus ROG Zephyrus G15 is about 36% faster in Geekbench 6 multi-core. Dell Precision 3551 lasts longer on battery (10h vs 8.5h).
- Dell Precision 3551 is the more portable at 1.89 kg.
Verdict: Precision 3551 or ROG Zephyrus G15?
Dell Precision 3551 advantages
- Battery life (+15%)
- Affordability (+28%)
Asus ROG Zephyrus G15 advantages
- Multi-core performance (+36%)
- Base memory (+50%)
Which should you choose?
- Choose the Dell Precision 3551 if long unplugged battery life is essential.
- Choose the Asus ROG Zephyrus G15 if you need maximum performance for demanding work or gaming.
- Choose the Dell Precision 3551 if you want the best value.
Value for money
Asus ROG Zephyrus G15 delivers more performance per dollar, making it the better value of the two at their listed prices.
Dell Precision 3551 vs Asus ROG Zephyrus G15: which should you choose?
Dell Precision 3551 — Dell workstation laptop (2020) with the Intel Core i5-10400H and Nvidia Quadro P620, 8GB RAM, a 15.6-inch 1920x1080 display, 1.89 kg and about 10 h battery; from $1,299.
Asus ROG Zephyrus G15 — Asus gaming laptop (2021) with the AMD Ryzen 9 5900HS and Nvidia RTX 3070, 16GB RAM, a 15.6-inch 2560x1440 display, 1.9 kg and about 8.5 h battery; from $1,799.99.
Dell Precision 3551 vs Asus ROG Zephyrus G15: Asus ROG Zephyrus G15 is the faster laptop. Asus ROG Zephyrus G15 is about 36% faster in Geekbench 6 multi-core. Dell Precision 3551 lasts longer on battery (10h vs 8.5h). Dell Precision 3551 is the more portable at 1.89 kg.
Performance
The Asus ROG Zephyrus G15 is the faster machine in Geekbench 6 multi-core (8,600 vs 5,500), pairing the AMD Ryzen 9 5900HS with Nvidia RTX 3070. That gap matters most for video editing, compiling, 3D and gaming; for browsing and office work both feel quick. Note these serve different roles — a workstation versus a gaming machine — so raw speed is only part of the story.
Portability and battery
The Dell Precision 3551 is easier to carry at 1.89 kg (vs 1.90 kg), and the Dell Precision 3551 lasts longer unplugged (about 10 h vs 8.5 h). For commuters and travellers these often matter more day-to-day than peak performance.
Configuration and value
Base configurations are 8 GB / 256 GB and 16 GB / 1024 GB, with higher-spec variants available. RAM, storage and display upgrades change both price and experience — compare like-for-like configurations and check current street pricing before buying.
The verdict
Both are credible choices in the laptop comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the Dell Precision 3551 better than the Asus ROG Zephyrus G15?
These two are closely matched — the right pick comes down to which specific strengths you value and the price you actually pay. Asus ROG Zephyrus G15 is about 36% faster in Geekbench 6 multi-core. Dell Precision 3551 lasts longer on battery (10h vs 8.5h).
What is the main difference between the Dell Precision 3551 and the Asus ROG Zephyrus G15?
Asus ROG Zephyrus G15 is about 36% faster in Geekbench 6 multi-core. Dell Precision 3551 lasts longer on battery (10h vs 8.5h). Dell Precision 3551 is the more portable at 1.89 kg.
Which is better value?
Asus ROG Zephyrus G15 delivers more performance per dollar, making it the better value of the two at their listed prices.
Which should I choose?
Choose the Dell Precision 3551 if long unplugged battery life is essential. Choose the Asus ROG Zephyrus G15 if you need maximum performance for demanding work or gaming.
Methodology
Laptops are compared on Geekbench 6 multi-core scores, processor and graphics hardware, display size and resolution, rated battery life, weight, RAM and storage across launch configurations, and list pricing (USD). Where a model spans several generations, the newest generation is shown. Battery figures are manufacturer or reviewer ratings under mixed use — sustained performance also depends on cooling, which benchmarks only partly capture.