Dell Precision 3551 vs. Lenovo ThinkPad P14s Gen 4 (21K5)

Laptop Comparison, Reviews and Tests

Side by side comparison and review of Dell Precision 3551 and Lenovo ThinkPad P14s Gen 4 (21K5). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.

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 P14s Gen 4 (21K5) Review

Advantages and disadvantages of Lenovo ThinkPad P14s Gen 4 (21K5) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

impressive CPU performance

good battery life

reliable security features

mediocre display quality

limited graphics power

heavier than competitors

higher price point

Laptop Comparison and Tests

Difference between Dell Precision 3551 and Lenovo ThinkPad P14s Gen 4 (21K5)
74 % - Design
64 % - Display
75 % - Performance
86 % - Connectivity
75 % - Battery
82 % - Design
75 % - Display
86 % - Performance
85 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

Dell Precision 3551 vs. Lenovo ThinkPad P14s Gen 4 (21K5) Comparison Chart
DESIGN AND DIMENSIONS Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Product Type Mobile workstation Mobile workstation
Dimensions (WxDxH) 35.91 cm x 23.625 cm x 1.499 cm 31.77 cm x 22.69 cm x 1.79 cm
Weight 1.89 kg 1.34 kg
Case Material - Carbon fibre (top), glass-fibre (top), polycarbonate (top), polyphenylene sulfide (bottom)
Colour - Villi black
DISPLAY Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Screen Size (Type) 15.6" 14" - IPS
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1200 (WUXGA)
Pixel Density (ppi) 141 -
V-Sync Rate at Max Res. 60 Hz -
Widescreen Yes Yes
Image Aspect Ratio - 16:10
Image Brightness - 300 cd/m²
Colour Gamut - 45% NTSC
Features Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle Anti-glare, 84% screen-to-body ratio, DC dimming
PROCESSOR Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
CPU Intel Core i7 (10th Gen) 10750H / 2.6 GHz AMD Ryzen 7 Pro 7840U / 3.3 GHz
Max Turbo Speed 5 GHz 5.1 GHz
Number of Cores 6-core 8-core
Cache 12 MB L3 - 16 MB
64-bit Computing Yes -
Platform Technology - AMD PRO
Features Intel Turbo Boost Max Technology 3.0 Integrated memory controller
MEMORY Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
RAM 8 GB (1 x 8 GB) 16 GB (provided memory is soldered)
Max RAM Supported 64 GB -
RAM Type DDR4 SDRAM LPDDR5X SDRAM - non-ECC
Speed 2933 MHz 7500 MHz
Rated Speed 2933 MHz 7500 MHz
Form Factor SO-DIMM 260-pin -
Slots Qty 2 -
Empty Slots 1 -
STORAGE Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 PCIe 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance
AUDIO & VIDEO Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Graphics Processor (GPU) NVIDIA Quadro P620 AMD Radeon 780M
Max Monitors Supported - 3 external monitor(s)
Video Memory 4 GB GDDR5 SDRAM -
Camera Yes - HD Yes
Resolution 8 Megapixel 5 Megapixel
Camera Features 78.6 degrees Privacy shutter, Windows Hello, fixed focus, Discrete IR, Ultrasonic Human Presence Detection
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 ALC3287
Compliant Standards High Definition Audio, Wave MAXXAudio Pro High Definition Audio, Dolby Audio
Audio Features - Input: Dolby Voice, far-field
COMMUNICATIONS Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Wireless 802.11a/b/g/n/ac Wave 2/ax, Bluetooth 5.1 Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller Intel Wi-Fi 6 AX 201 Qualcomm NFA725A
Network Interface Gigabit Ethernet Gigabit Ethernet
Ethernet Controller - Realtek RTL8111EPV
Features - Wake-on-LAN (WOL), dual stream (2x2)
WWAN
Generation - 4G upgradable
BATTERY Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Technology 4-cell Lithium polymer
Battery Capacity (Size) 68 Wh 52.5 Wh
AC ADAPTER Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 130 Watt, 20 V, 6.5 A 65 Watt
INPUT Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Type Keyboard, touchpad, pointing stick Keyboard, TrackPoint, UltraNav
Keyboard Backlight Yes Yes
Features - Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls
CONNECTIONS & EXPANSIONS Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
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 3.2 Gen 1 (Always On)
USB 3.2 Gen 1
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB4/DisplayPort 1.4 (Power Delivery 3.0)
HDMI (4K support)
LAN
Headphone/microphone combo jack
Memory Card Reader Yes (microSD, microSDHC, microSDXC) -
SOFTWARE Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Operating System (OS) Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI) Windows 11 Pro - English
Software Included Microsoft Office (Trial) -
MISCELLANEOUS Dell Precision 3551 Lenovo ThinkPad P14s Gen 4 (21K5)
Included Accessories Power adapter USB-C power adapter
Security Trusted Platform Module (TPM 2.0) Security Chip, smart card reader Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, fingerprint reader, smart card reader
Security Slot Type Noble Wedge security slot Kensington nano security slot
Theft/Intrusion Protection Security lock slot (cable lock sold separately) Security lock slot (cable lock sold separately)
Features - Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password, bottom cover tamper detection
Compliant Standards - RoHS, TCG Certified, TCO Certified 9.0
Max Operating Temperature 35 °C 35 °C
Min Operating Temperature 0 °C 5 °C
Humidity Range Operating 0 - 95% (non-condensing) 8 - 95%
Manufacturer Warranty - Base warranty - 3 years - pick-up and return
Base warranty - battery - 1 year
Extended warranty - 1 year - on-site - response time: next business day
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