Detailed comparison and review of Lenovo ThinkPad P51 (20MM) and Lenovo ThinkPad P51 (20MN). 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 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
| DESIGN AND DIMENSIONS | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 37.74 cm x 25.23 cm x 2.94 cm | 37.74 cm x 25.23 cm x 2.94 cm |
| Weight | 2.67 kg | 2.67 kg |
| Case Material | Glass-fibre reinforced plastic, magnesium-aluminum alloy | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
| Colour | Black | Black |
| DISPLAY | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| 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, 160° viewing angle |
| PROCESSOR | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| CPU | Intel Core i7 (6th Gen) 6820HQ / 2.7 GHz | Intel Xeon E3-1505MV5 / 2.8 GHz |
|---|---|---|
| Max Turbo Speed | 3.6 GHz | 3.7 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 8 MB | 8 MB |
| 64-bit Computing | Yes | - |
| Chipset | Mobile Intel CM238 | Mobile Intel CM238 |
| Platform Technology | Intel vPro Platform | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| RAM | 8 GB (1 x 8 GB) | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM |
| Speed | 2133 MHz | 2133 MHz |
| Rated Speed | - | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 4 | 4 |
| Empty Slots | 3 | 3 |
| STORAGE | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) - Samsung | 512 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption, NVM Express (NVMe) - Samsung |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA Quadro M2200 / Intel HD Graphics 530 | NVIDIA Quadro M2200 / Intel HD Graphics P530 |
| Max Monitors Supported | - | 3 external monitor(s) |
| Video Memory | 4 GB | 4 GB |
| Camera | Yes - 720p | Yes - 720p |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3268 | Realtek ALC3268 |
| Compliant Standards | High Definition Audio | High Definition Audio |
| COMMUNICATIONS | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| 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 8260 - M.2 Card | Intel Dual Band Wireless-AC 8260 - M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Intel I219-LM | - |
| BATTERY | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Technology | 6-cell Lithium Ion | 6-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 90 Wh |
| Battery Life | Up to 8.9 hours | Up to 8.9 hours |
| AC ADAPTER | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 170 Watt | 170 Watt, 20 V |
| INPUT | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| 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 |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Slots | 1 x ExpressCard/34 (1 free) | 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 3.0 (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 |
| 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, SDXC UHS-II Card) |
| SOFTWARE | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Operating System (OS) | Microsoft Windows 7 Professional 64-bit Edition (available through downgrade rights from Windows 10 Pro 64-bit) + Windows 10 Pro 64-bit Licence | 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 |
|---|
| MISCELLANEOUS | Lenovo ThinkPad P51 (20MM) | Lenovo ThinkPad P51 (20MN) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint 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, Intel Active Management Technology (iAMT), MIL-STD-810G tested | Administrator password, hard drive password, power-on password, MIL-STD-810G tested |
| Compliant Standards | RoHS | RoHS |
| ENERGY STAR Certified | Yes | Yes |
| Manufacturer Warranty | Limited warranty - 3 years - on-site Limited warranty - battery - 1 year |
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