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Notebook Review

Dell Precision 3551 Review: Mobile Workstation for Important Projects

September 24, 2020 By Notebook Center Editorial Team DELL
Summary: Dell Precision 3551 is a 15.6-inch mobile workstation with Core i7-10750H, Quadro P620 graphics, and 97 Wh battery, built for professional workloads.

Editor note: This English review is an original adaptation prepared by Notebook Center from the Notebook-Center.ru source review.

Overview

Dell Precision 3551 is a 15.6-inch mobile workstation aimed at engineers, architects, and 3D/CAD professionals. In the reviewed 3551-3627 configuration, it combines an Intel Core i7-10750H, NVIDIA Quadro P620 graphics, and dual-drive storage (1 TB HDD + 256 GB SSD). The source model was positioned around $1800 and focuses on practical work performance rather than gaming.

Technical Specifications

ComponentDetails
ProcessorIntel Core i7-10750H, 2600 MHz
Memory8 GB DDR4 2933 MHz
Storage1000 GB HDD 7200 rpm + 256 GB SSD
Display15.6-inch, 1920x1080, Full HD, IPS, matte
GraphicsIntel UHD Graphics 630 + NVIDIA Quadro P620 4 GB GDDR5
WirelessWi-Fi 802.11 b/g/n/ac, Bluetooth 5.1
AudioWaves MaxxAudio, 2 speakers
Ports3x USB 3.1, USB Type-C/Thunderbolt, HDMI, RJ-45, microSD card reader, combo audio jack
Extras720p webcam, fingerprint scanner
Battery6-cell Li-ion, 97 Wh
Size and weight359 x 236 x 25 mm, 1.89 kg
Operating systemWindows 10 Professional 64-bit
Tested configurationDell Precision 3551 (3551-3627)

Design and Build

The chassis uses plastic and aluminum with a matte finish that helps hide fingerprints. The look is conservative but modern, with narrow side bezels around the display. At 1.89 kg, this 15.6-inch workstation is portable enough for daily office travel and meetings.

Display and Multimedia

The Full HD IPS panel has a matte surface, stable viewing angles, and full sRGB coverage according to the source. Average brightness is around 220 cd/m2, which is acceptable for indoor work but not very high. Audio quality is clear through dual 2 W speakers with Waves MaxxAudio tuning, while the webcam is a standard 720p unit with dual microphones.

Performance for Professional Work

Core performance comes from the six-core Core i7-10750H and Quadro P620 dedicated graphics. This combination is intended for professional applications such as CAD and 3D workflows. The storage setup mixes fast SSD response with higher HDD capacity, though the default 8 GB RAM can be a limit in heavier multitasking scenarios.

Ports and Connectivity

Precision 3551 offers a practical selection for workstation use: three USB 3.1 ports, USB Type-C with Thunderbolt, HDMI, wired LAN (RJ-45), microSD, and a combo audio jack. Wireless connectivity includes Wi-Fi ac and Bluetooth 5.1. The source notes that many ports are concentrated on the right side, which may feel less convenient for some right-handed users.

Battery

The 97 Wh battery supports ExpressCharge and was reported to last around 5 to 6 hours in balanced mode. For a workstation-class laptop, this is a useful result for business trips and long meetings away from a power outlet.

Verdict

Dell Precision 3551 is a practical mobile workstation for users who need stable CPU/GPU performance, broad connectivity, and security features like a fingerprint reader. Its key compromise is display brightness and some ergonomic details around port placement, but overall it is a solid fit for specialized professional tasks.