Lenovo ThinkPad L15 Gen 3 (21C3) vs. Dell Precision 3571

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo ThinkPad L15 Gen 3 (21C3) and Dell Precision 3571. 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 L15 Gen 3 (21C3) Review

Advantages and disadvantages of Lenovo ThinkPad L15 Gen 3 (21C3) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

good battery life

reliable performance

decent connectivity options

mediocre display quality

heavier design

limited graphics performance

higher price point

Dell Precision 3571 Review

Advantages and disadvantages of Dell Precision 3571 based on its technical characteristics, features, user experience, expert reviews and price level.

powerful intel processors

robust build quality

excellent security features

high-resolution display

good thermal management

heavier than competitors

limited color options

higher price point

average battery life

Laptop Comparison and Tests

Difference between Lenovo ThinkPad L15 Gen 3 (21C3) and Dell Precision 3571
85 % - Design
72 % - Display
75 % - Performance
85 % - Connectivity
75 % - Battery
86 % - Design
75 % - Display
80 % - Performance
85 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Lenovo ThinkPad L15 Gen 3 (21C3) vs. Dell Precision 3571 Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Product Type Notebook - 180-degree hinge design Notebook
Dimensions (WxDxH) 36.02 cm x 23.7 cm x 1.993 cm 35.78 cm x 23.33 cm x 2.405 cm
Weight 1.76 kg 1.79 kg
Case Material Polycarbonate ABS (bottom), polycarbonate ABS (top) -
Colour Thunder black Grey
DISPLAY Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Screen Size (Type) 15.6" - IPS 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 16:9
Image Brightness 250 cd/m² 400 cd/m²
Colour Gamut 45% NTSC 100% sRGB
Features Anti-glare, 170° viewing angle Anti-glare, Wide Viewing Angle, ±85° horizontal viewing angle, ±85° vertical viewing angle, 35 ms response rate, 0.179 mm pixel pitch, Low Blue Light technology, Super Low Power Panel (SLP)
PROCESSOR Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
CPU Intel Core i5 (12th Gen) 1235U / 1.3 GHz Intel Core i7 (12th Gen) 12700H / 2.3 GHz
Max Turbo Speed 4.4 GHz 4.7 GHz
Number of Cores 10-core 14-core
Cache 12 MB 24 MB
Chipset - Intel H45
Platform Technology - Intel vPro Essentials
Features Integrated memory controller Intel Smart Cache
MEMORY Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
RAM 8 GB (2 x 4 GB) 32 GB (2 x 16 GB)
Max RAM Supported 64 GB 64 GB
RAM Type DDR4 SDRAM DDR5 SDRAM
Speed 3200 MHz 4800 MHz
Rated Speed 3200 MHz 4800 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 262-pin
Slots Qty 2 2
Empty Slots 0 0
STORAGE Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) 512 GB SSD M.2 2280 PCIe - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Graphics Processor (GPU) Intel Iris Xe Graphics NVIDIA RTX A1000
Max Monitors Supported 3 external monitor(s) -
Video Memory - 4 GB GDDR6 SDRAM
Video System Features Functions as Intel UHD graphics (for single-channel memory) -
Camera Yes - 1080p Yes
Camera Features Privacy shutter, IR camera, Windows Hello, fixed focus Privacy shutter, IR camera, RGB camera
Image Sensor Type - CMOS
Frame Rate - 30 frames per second
Sound Stereo speakers, dual array microphone Stereo speakers, dual array microphone
Codec Realtek ALC3287 Realtek ALC3204
Compliant Standards High Definition Audio, Dolby Audio, Dolby Voice High Definition Audio
Audio Features - MaxxAudio Pro
COMMUNICATIONS Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Wireless 802.11a/b/g/n/ac/ax, Bluetooth 5.2 Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller Intel Wi-Fi 6 AX 201 - M.2 Card Intel Wi-Fi 6E AX 211 - M.2 2230
Network Interface Gigabit Ethernet Gigabit Ethernet
Ethernet Controller - Intel I219-LM
Features Wake-on-LAN (WOL), dual stream (2x2) -
WWAN
Generation 4G upgradable -
BATTERY Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Technology Lithium polymer 4-cell lithium polymer
Battery Capacity (Size) 57 Wh 64 Wh
AC ADAPTER Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 130 Watt, 5 / 20 V, 6.5 A
INPUT Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Type Keyboard, TrackPoint, UltraNav Keyboard, touchpad
Numeric Keypad Yes Yes
Keyboard Backlight Yes Yes
Features Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls -
CONNECTIONS & EXPANSIONS Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Interfaces USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
USB-C 3.2 Gen 1 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
Headphone/microphone combo jack
HDMI
LAN
HDMI
2 x USB4 (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery)
USB 3.2 Gen 1 (PowerShare)
USB 3.2 Gen 1
LAN (RJ-45)
Headphone/microphone combo jack
Memory Card Reader Yes (microSD) Yes (microSD, microSDHC, microSDXC)
SOFTWARE Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Operating System (OS) Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - English Windows 10 Pro 64-bit Edition + Windows 11 Pro Licence - Dutch / English / French / German / Italian
MISCELLANEOUS Lenovo ThinkPad L15 Gen 3 (21C3) Dell Precision 3571
Included Accessories USB-C power adapter USB-C power adapter
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader Trusted Platform Module (TPM 2.0) Security Chip, smart card reader
Security Slot Type Kensington nano security slot Noble Wedge 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 ExpressCharge
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified FIPS 140-2
ENERGY STAR Certified Yes -
EPEAT Compliant EPEAT Gold -
Max Operating Temperature 35 °C 35 °C
Min Operating Temperature 5 °C 0 °C
Humidity Range Operating 8 - 95% 10 - 90% (non-condensing)
Manufacturer Warranty Base warranty - 1 year - pick-up and return
Extended warranty - 1 year - on-site
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