Lenovo ThinkPad P51 (20HJ) vs. Lenovo ThinkPad P52s (20LB)

Laptop Comparison, Reviews and Tests
Lenovo ThinkPad P51 (20HJ)
Lenovo ThinkPad P51 (20HJ)

In depth comparison and review of Lenovo ThinkPad P51 (20HJ) and Lenovo ThinkPad P52s (20LB). 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.

Lenovo ThinkPad P52s (20LB) Review

Advantages and disadvantages of Lenovo ThinkPad P52s (20LB) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

powerful processor options

good battery life

reliable performance

heavier than competitors

expensive base model

limited aesthetic appeal

average display brightness

Laptop Comparison and Tests

Difference between Lenovo ThinkPad P51 (20HJ) and Lenovo ThinkPad P52s (20LB)
85 % - Design
72 % - Display
72 % - Performance
85 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Lenovo ThinkPad P51 (20HJ) vs. Lenovo ThinkPad P52s (20LB) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Product Type Mobile workstation Mobile workstation
Dimensions (WxDxH) 37.74 cm x 25.23 cm x 2.94 cm 36.58 cm x 25.28 cm x 2.02 cm
Weight 2.55 kg 1.99 kg
Case Material Glass-fibre reinforced plastic, magnesium-aluminum alloy Glass-fibre reinforced plastic, polyphenylene sulfide
Colour Black Black
DISPLAY Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Screen Size (Type) 15.6" - IPS 15.6" - IPS
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1080 (Full HD)
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Image Brightness 250 cd/m² 250 cd/m²
Features Anti-glare Anti-glare
PROCESSOR Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
CPU Intel Core i7 (7th Gen) 7820HQ / 2.9 GHz Intel Core i7 (8th Gen) 8550U / 1.8 GHz
Max Turbo Speed 3.9 GHz 4 GHz
Number of Cores Quad-Core Quad-Core
Cache 8 MB 8 MB
64-bit Computing Yes Yes
Chipset Mobile Intel CM238 -
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
RAM 8 GB (1 x 8 GB) 8 GB (1 x 8 GB)
Max RAM Supported 64 GB 32 GB
RAM Type DDR4 SDRAM - non-ECC DDR4 SDRAM
Speed 2400 MHz 2400 MHz
Rated Speed 2400 MHz -
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 4 2
Empty Slots 3 1
STORAGE Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Main Storage Size (HDD/SSD) 500 GB HDD SATA 6Gb/s / 7200 rpm 256 GB SSD M.2 PCIe - TCG Opal Encryption 2, NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Multi-GPU Configuration 1 single GPU card / integrated GPU 1 single GPU card / integrated GPU
Graphics Processor (GPU) NVIDIA Quadro M1200 / Intel HD Graphics 630 NVIDIA Quadro P500 / Intel UHD Graphics 620
Video Memory 4 GB 2 GB GDDR5 SDRAM
Camera Yes - 720p Yes - 720p
Camera Features - ThinkShutter camera privacy
Sound Stereo speakers, dual array microphone Stereo speakers, dual array microphone
Codec Realtek ALC3268 Realtek ALC3287
Compliant Standards High Definition Audio High Definition Audio, Dolby Audio Premium
COMMUNICATIONS Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.1 802.11a/b/g/n/ac, Bluetooth 4.1
Wireless Controller Intel Dual Band Wireless-AC 8265 - M.2 Card Intel Dual Band Wireless-AC 8265 - M.2 Card
Network Interface Gigabit Ethernet Gigabit Ethernet
Ethernet Controller - Intel I219-V
BATTERY Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Technology 4-cell Lithium Ion Lithium Ion
Installed Qty - 2
Battery Capacity (Size) 66 Wh -
Battery Life Up to 6.5 hours Up to 13.5 hours
AC ADAPTER Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Input AC 120/230 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 170 Watt, 20 V 65 Watt
INPUT Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Type Keyboard, TrackPoint, UltraNav Keyboard, TrackPoint, UltraNav
Numeric Keypad Yes Yes
Keyboard Backlight - Yes
Features Spill-resistant, multi-touch touchpad Spill-resistant, multi-touch touchpad, buttonless touchpad
CONNECTIONS & EXPANSIONS Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Slots 1 x ExpressCard/34 (1 free) -
Interfaces USB 3.1 Gen 1/USB 3.0 (Always On)
3 x USB 3.1 Gen 1/USB 3.0
USB-C (supports Thunderbolt 3)
Mini DisplayPort
HDMI
LAN
Dock
Headphone/microphone combo jack
USB 3.1 Gen 1
USB 3.1 Gen 1 (Always On)
USB-C 3.1 Gen 1
USB-C 3.1 Gen 2 (supports Thunderbolt 3)
HDMI
LAN
Dock
Headphone/microphone combo jack
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card, SDXC UHS-II Card) 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Operating System (OS) Windows 10 Pro 64-bit Edition Windows 10 Pro 64-bit Edition - English
MISCELLANEOUS Lenovo ThinkPad P51 (20HJ) Lenovo ThinkPad P52s (20LB)
Dockable Yes Yes
Included Accessories Power adapter USB-C power adapter
Security Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader
Security Slot Type Kensington 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, ThinkVantage Active Protection System, MIL-STD-810G tested Administrator password, hard drive password, power-on password, MIL-STD-810G tested
Compliant Standards RoHS RoHS
ENERGY STAR Certified Yes -
Manufacturer Warranty - Limited warranty - 3 years - carry-in
Limited warranty - battery - 1 year
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