Dell Precision 3551 vs. Lenovo ThinkPad P15 Gen 1 (20ST)

Laptop Comparison, Reviews and Tests
Lenovo ThinkPad P15 Gen 1 (20ST)
Lenovo ThinkPad P15 Gen 1 (20ST)

Our Rating: 85 %

In depth comparison and review of Dell Precision 3551 and Lenovo ThinkPad P15 Gen 1 (20ST). 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.

Dell Precision 3551 Review

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

Lenovo ThinkPad P15 Gen 1 (20ST) Review

Advantages and disadvantages of Lenovo ThinkPad P15 Gen 1 (20ST) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

powerful processor performance

excellent keyboard feel

good thermal management

reliable security features

heavy and bulky

expensive price point

moderate battery life

limited color accuracy

Laptop Comparison and Tests

Difference between Dell Precision 3551 and Lenovo ThinkPad P15 Gen 1 (20ST)
74 % - Design
64 % - Display
75 % - Performance
86 % - Connectivity
75 % - Battery
86 % - Design
72 % - Display
85 % - Performance
85 % - Connectivity
76 % - Battery

Laptop Specifications Comparison

Dell Precision 3551 vs. Lenovo ThinkPad P15 Gen 1 (20ST) Comparison Chart
DESIGN AND DIMENSIONS Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Product Type Mobile workstation Mobile workstation
Dimensions (WxDxH) 35.91 cm x 23.625 cm x 1.499 cm 37.54 cm x 25.23 cm x 3.145 cm
Weight 1.89 kg 2.74 kg
Case Material - Glass-fibre, glass-fibre reinforced plastic, polyphenylene sulfide
Colour - Black
DISPLAY Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Screen Size (Type) 15.6" 15.6"
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% NTSC
Features Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle Anti-glare, Wide Viewing Angle, 160° viewing angle, 72% NTSC colour gamut
PROCESSOR Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
CPU Intel Core i7 (10th Gen) 10750H / 2.6 GHz Intel Core i7 (10th Gen) 10750H / 2.6 GHz
Max Turbo Speed 5 GHz 5 GHz
Number of Cores 6-core 6-core
Cache 12 MB 12 MB
64-bit Computing Yes Yes
Chipset - Mobile Intel WM490
Features Intel Turbo Boost Max Technology 3.0 Integrated memory controller
MEMORY Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
RAM 8 GB (1 x 8 GB) 16 GB (2 x 8 GB)
Max RAM Supported 64 GB 128 GB
RAM Type DDR4 SDRAM DDR4 SDRAM - non-ECC
Speed 2933 MHz 2933 MHz
Rated Speed 2933 MHz 3200 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 2 4
Empty Slots 1 2
STORAGE Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 PCIe 512 GB SSD M.2 2280 PCIe - TCG Opal Encryption 2, NVM Express (NVMe)
RAID Level - RAID 0, RAID 1
AUDIO & VIDEO Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) NVIDIA Quadro P620 NVIDIA Quadro T1000 / Intel UHD Graphics
Video Memory 4 GB GDDR5 SDRAM 4 GB GDDR6 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 Dolby Atmos
COMMUNICATIONS Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Wireless 802.11a/b/g/n/ac Wave 2/ax, Bluetooth 5.1 802.11a/b/g/n/ac/ax, Bluetooth 5.1
Wireless Controller Intel Wi-Fi 6 AX 201 Intel Wi-Fi 6 AX 201
Network Interface Gigabit Ethernet Gigabit Ethernet
Ethernet Controller - Intel I219-V
Features - Dual stream (2x2)
WWAN
Generation - WWAN upgradable
BATTERY Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Technology 4-cell Lithium Ion
Battery Capacity (Size) 68 Wh 94 Wh
Battery Life - Up to 16.4 hours
AC ADAPTER Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Input AC 120/230 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 130 Watt, 20 V, 6.5 A 170 Watt
INPUT Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Type Keyboard, touchpad, pointing stick Keyboard, TrackPoint, UltraNav
Numeric Keypad - Yes
Keyboard Backlight Yes Yes
Features - Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls
CONNECTIONS & EXPANSIONS Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
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-C 3.2 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery)
2 x USB-C 3.2 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery)
USB 3.2 Gen 1 (Always On)
USB 3.2 Gen 1
HDMI
Headphone/microphone combo jack
LAN
Memory Card Reader Yes (microSD, microSDHC, microSDXC) Yes (SD Card)
SOFTWARE Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Operating System (OS) Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI) Windows 10 Pro 64-bit Edition - English
Software Included Microsoft Office (Trial) -
MISCELLANEOUS Dell Precision 3551 Lenovo ThinkPad P15 Gen 1 (20ST)
Included Accessories Power adapter Power adapter
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
Max Operating Temperature 35 °C -
Min Operating Temperature 0 °C -
Humidity Range Operating 0 - 95% (non-condensing) -
Manufacturer Warranty - Limited warranty - 3 years - pick-up and return
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