In depth comparison and review of Lenovo ThinkPad P51 (20MN) and Dell Precision 3540. 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.
Advantages and disadvantages of Lenovo ThinkPad P51 (20MN) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard
powerful processor
high-resolution display
good connectivity options
heavy and bulky
expensive
average battery life
noisy under load
Advantages and disadvantages of Dell Precision 3540 based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
affordable professional laptop
decent battery life
comfortable keyboard
solid build quality
mediocre display quality
limited graphics performance
heavier design
average processor speed
DESIGN AND DIMENSIONS | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Product Type | Mobile workstation | Mobile workstation |
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Dimensions (WxDxH) | 37.74 cm x 25.23 cm x 2.94 cm | 35.91 cm x 23.625 cm x 2.2 cm |
Weight | 2.67 kg | 1.83 kg |
Case Material | Glass-fibre reinforced plastic, magnesium-aluminum alloy | - |
Colour | Black | Black |
DISPLAY | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Screen Size (Type) | 15.6" - IPS | 15.6" |
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LCD Backlight Technology | LED backlight | WLED 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 | 300 cd/m² |
Features | Anti-glare, 160° viewing angle | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle |
PROCESSOR | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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CPU | Intel Xeon E3-1505MV5 / 2.8 GHz | Intel Core i7 (8th Gen) 8565U / 1.8 GHz |
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Max Turbo Speed | 3.7 GHz | 4.6 GHz |
Number of Cores | Quad-Core | Quad-Core |
Cache | 8 MB | 8 MB |
64-bit Computing | - | Yes |
Chipset | Mobile Intel CM238 | - |
Features | Integrated memory controller | Intel Turbo Boost Technology 2.0 |
MEMORY | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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RAM | 16 GB (1 x 16 GB) | 8 GB (1 x 8 GB) |
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Max RAM Supported | 64 GB | 32 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Speed | 2133 MHz | 2400 MHz |
Rated Speed | 2400 MHz | 2400 MHz |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 4 | 2 |
Empty Slots | 3 | 1 |
STORAGE | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption, NVM Express (NVMe) - Samsung | 256 GB SSD M.2 PCIe |
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AUDIO & VIDEO | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
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Graphics Processor (GPU) | NVIDIA Quadro M2200 / Intel HD Graphics P530 | AMD Radeon Pro WX 2100 |
Max Monitors Supported | 3 external monitor(s) | - |
Video Memory | 4 GB | 2 GB GDDR5 SDRAM |
Camera | Yes - 720p | Yes - HD |
Camera Features | - | Fixed focus, 78.6 degrees, RGB camera |
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 ALC3268 | Realtek ALC3254 |
Compliant Standards | High Definition Audio | - |
Audio Features | - | Output: MaxxAudio Pro |
COMMUNICATIONS | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | 802.11a/b/g/n/ac Wave 2, Bluetooth 5.0 |
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Wireless Controller | Intel Dual Band Wireless-AC 8260 - M.2 Card | Intel Wireless-AC 9560 - M.2 2230 |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
BATTERY | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Technology | 6-cell Lithium Ion | 4-cell Lithium Ion |
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Battery Capacity (Size) | 90 Wh | 68 Wh |
Battery Life | Up to 8.9 hours | - |
AC ADAPTER | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | 170 Watt, 20 V | 90 Watt, 19.5 V, 4.62 A |
INPUT | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
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Numeric Keypad | Yes | - |
Keyboard Backlight | - | Yes |
Features | Spill-resistant, multi-touch touchpad | Multi-finger touchpad |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Slots | 1 x ExpressCard/34 (1 free) | - |
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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 |
3 x USB 3.1 Gen 1 LAN USB-C 3.1 Gen 1 (supports Thunderbolt 3, DisplayPort Alt Mode) Headphone/microphone combo jack HDMI |
Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card, SDXC UHS-II Card) | Yes (microSD) |
SOFTWARE | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Operating System (OS) | Microsoft Windows 7 Professional 64-bit Edition (available through downgrade rights from Windows 10 Pro for Workstations 64-bit Edition) + Windows 10 Pro for Workstations 64-bit Edition Licence | Windows 10 Pro 64-bit Edition - Multilingual User Interface (MUI) |
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Software Included | - | Microsoft Office (Trial) |
MISCELLANEOUS | Lenovo ThinkPad P51 (20MN) | Dell Precision 3540 |
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Dockable | Yes | - |
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Included Accessories | Power adapter | Power adapter |
Security | 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 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, hard drive password, power-on password, MIL-STD-810G tested | - |
Compliant Standards | RoHS | - |
ENERGY STAR Certified | Yes | - |
Max Operating Temperature | - | 35 °C |
Min Operating Temperature | - | 0 °C |
Humidity Range Operating | - | 10 - 80% (non-condensing) |
Manufacturer Warranty | - | Limited warranty - 3 years - on-site |