In depth comparison and review of Dell Precision 3551 and Lenovo ThinkPad P1 (20MD). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Dell Precision 3551 based on its technical characteristics, features, user experience, expert reviews and price level.
robust processing power
expandable memory options
reliable build quality
adequate port selection
decent battery life
heavier design
basic display quality
noisy under load
premium price tag
DESIGN AND DIMENSIONS | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Product Type | Mobile workstation | Mobile workstation |
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Dimensions (WxDxH) | 35.91 cm x 23.625 cm x 1.499 cm | 36.18 cm x 24.57 cm x 1.84 cm |
Weight | 1.89 kg | 1.7 kg |
Case Material | - | Aluminum, glass-fibre reinforced plastic, carbon fibre reinforced plastic |
Colour | - | Black |
DISPLAY | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Screen Size (Type) | 15.6" | 15.6" - IPS |
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LCD Backlight Technology | - | LED backlight |
Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
Pixel Density (ppi) | 141 | - |
V-Sync Rate at Max Res. | 60 Hz | - |
Widescreen | Yes | Yes |
Image Aspect Ratio | - | 16:9 |
Image Brightness | - | 300 cd/m² |
Colour Gamut | - | 72% |
Features | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle | Anti-glare |
PROCESSOR | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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CPU | Intel Core i7 (10th Gen) 10750H / 2.6 GHz | Intel Core i7 (8th Gen) 8750H / 2.2 GHz |
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Max Turbo Speed | 5 GHz | 4.1 GHz |
Number of Cores | 6-core | 6-core |
Cache | 12 MB | 9 MB |
64-bit Computing | Yes | Yes |
Chipset | - | Mobile Intel CM246 |
Features | Intel Turbo Boost Max Technology 3.0 | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache |
MEMORY | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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RAM | 8 GB (1 x 8 GB) | 16 GB (2 x 8 GB) |
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Max RAM Supported | 64 GB | 64 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM - non-ECC |
Speed | 2933 MHz | 2666 MHz |
Rated Speed | 2933 MHz | 2666 MHz |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 2 | 2 |
Empty Slots | 1 | 0 |
STORAGE | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe | 256 GB SSD M.2 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) |
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AUDIO & VIDEO | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
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Graphics Processor (GPU) | NVIDIA Quadro P620 | NVIDIA Quadro P1000 / Intel UHD Graphics 630 |
Video Memory | 4 GB GDDR5 SDRAM | 4 GB GDDR5 SDRAM |
Camera | Yes - HD | Yes - 720p |
Resolution | 8 Megapixel | - |
Camera Features | 78.6 degrees | ThinkShutter camera privacy |
Image Sensor Type | CMOS | - |
Video Resolutions | 1280 x 720 | - |
Frame Rate | 30 frames per second | - |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3204 | Realtek ALC3286 |
Compliant Standards | High Definition Audio, Wave MAXXAudio Pro | High Definition Audio, Dolby Audio Premium, Dolby Atmos |
COMMUNICATIONS | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Wireless | 802.11a/b/g/n/ac Wave 2/ax, Bluetooth 5.1 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
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Wireless Controller | Intel Wi-Fi 6 AX 201 | Intel Wireless-AC 9560 - M.2 Card |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Ethernet Controller | - | Intel I219-V |
BATTERY | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Technology | 4-cell | Lithium Ion |
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Battery Capacity (Size) | 68 Wh | 80 Wh |
Battery Life | - | Up to 13.87 hours |
AC ADAPTER | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | 130 Watt, 20 V, 6.5 A | 135 Watt |
INPUT | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Type | Keyboard, touchpad, pointing stick | Keyboard, TrackPoint, UltraNav |
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Keyboard Backlight | Yes | Yes |
Features | - | Spill-resistant, multi-touch touchpad, buttonless touchpad |
CONNECTIONS & EXPANSIONS | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Interfaces | HDMI USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort 1.4 Alt Mode) USB 3.1 (PowerShare) 2 x USB 3.1 Gen 1 LAN Headphone/microphone combo jack |
USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 2 x USB-C (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Lenovo Ethernet extension connector Headphone/microphone combo jack LAN (on supplied cable) |
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Memory Card Reader | Yes (microSD, microSDHC, microSDXC) | Yes (SD Card, SDHC Card, SDXC UHS-II Card) |
SOFTWARE | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Operating System (OS) | Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI) | Windows 10 Pro 64-bit Edition |
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Software Included | Microsoft Office (Trial) | - |
MISCELLANEOUS | Dell Precision 3551 | Lenovo ThinkPad P1 (20MD) |
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Included Accessories | Power adapter | Power adapter, ThinkPad Ethernet Extension cable |
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Security | Trusted Platform Module (TPM 2.0) Security Chip, smart card reader | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
Security Slot Type | Noble Wedge security slot | Kensington security slot |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
Features | - | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
Compliant Standards | - | RoHS |
SAR Value | - | 0.193 W/kg (body), 0.193 W/kg (limb) |
Max Operating Temperature | 35 °C | - |
Min Operating Temperature | 0 °C | - |
Humidity Range Operating | 0 - 95% (non-condensing) | - |
Manufacturer Warranty | - | Limited warranty - 3 years - on-site Limited warranty - battery - 1 year |