Detailed comparison and review of Lenovo ThinkPad T14 Gen 3 (21AJ) and Dell Precision 3571. With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.
Advantages and disadvantages of Lenovo ThinkPad T14 Gen 3 (21AJ) 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
ample connectivity options
relatively heavy
average display brightness
costly base model
noisy under load
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
| DESIGN AND DIMENSIONS | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31.77 cm x 22.69 cm x 1.79 cm | 35.78 cm x 23.33 cm x 2.405 cm |
| Weight | 1.21 kg | 1.79 kg |
| Case Material | Carbon fibre (top), glass-fibre (top), polycarbonate (top), polyphenylene sulfide (bottom) | - |
| Colour | Thunder black | Grey |
| DISPLAY | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Screen Size (Type) | 14" - IPS | 15.6" |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1200 (WUXGA) | 1920 x 1080 (Full HD) |
| Pixel Density (ppi) | - | 141 |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Image Brightness | 300 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 T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| CPU | Intel Core i5 (12th Gen) 1245U / 1.6 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 T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| RAM | 8 GB (provided memory is soldered) | 32 GB (2 x 16 GB) |
|---|---|---|
| Max RAM Supported | 40 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 | 1 | 2 |
| Empty Slots | 1 | 0 |
| STORAGE | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption - SK Hynix | 512 GB SSD M.2 2280 PCIe - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad T14 Gen 3 (21AJ) | 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 - 720p | Yes |
| Camera Features | Privacy shutter, 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 T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Wireless | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6E AX 211 | 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) | - |
| WWAN |
|---|
| Generation | 4G | - |
|---|---|---|
| Technology | LTE | - |
| Controller | Quectel EM05-G - M.2 Card | - |
| BATTERY | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Technology | 3-cell lithium polymer | 4-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 39.3 Wh | 64 Wh |
| AC ADAPTER | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 5 / 9 / 15 / 20 V | 130 Watt, 5 / 20 V, 6.5 A |
| INPUT | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | - |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
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, microSDHC, microSDXC) |
| SOFTWARE | Lenovo ThinkPad T14 Gen 3 (21AJ) | Dell Precision 3571 |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence | Windows 10 Pro 64-bit Edition + Windows 11 Pro Licence - Dutch / English / French / German / Italian |
|---|
| MISCELLANEOUS | Lenovo ThinkPad T14 Gen 3 (21AJ) | 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 | 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, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication | 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) |
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