In depth comparison and review of Lenovo ThinkPad T540p and Lenovo ThinkPad P51. 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 T540p based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good performance levels
reliable security features
decent battery life
heavy and bulky
outdated design
mediocre display quality
limited graphics performance
Advantages and disadvantages of Lenovo ThinkPad P51 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
powerful processor performance
high-resolution display
good connectivity options
heavy and bulky
expensive price point
moderate battery life
noisy under load
| DESIGN AND DIMENSIONS | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 37.6 cm x 24.8 cm x 2.77 cm | 37.74 cm x 25.23 cm x 2.94 cm |
| Weight | 2.49 kg | 2.67 kg |
| Case Material | Glass-fibre reinforced plastic | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
| Colour | Black | Black |
| DISPLAY | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | - | 250 cd/m² |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| CPU | Intel Core i5 (4th Gen) 4300U / 1.9 GHz | Intel Xeon E3-1505MV6 / 3 GHz |
|---|---|---|
| Max Turbo Speed | 2.9 GHz | 4 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 3 MB | 8 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | - | Mobile Intel CM238 |
| Platform Technology | - | Intel vPro Platform |
| Features | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
| MEMORY | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| RAM | 8 GB | 16 GB |
|---|---|---|
| Max RAM Supported | 16 GB | 64 GB |
| RAM Type | DDR3L SDRAM | DDR4 SDRAM |
| Speed | - | 2400 MHz |
| Form Factor | SO-DIMM 204-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 4 |
| STORAGE | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Main Storage Size (HDD/SSD) | 240 GB SSD | 512 GB SSD |
|---|---|---|
| Optical Drive | DVD-Writer removable | - |
| AUDIO & VIDEO | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel HD Graphics 4400 | NVIDIA Quadro M2200 / Intel HD Graphics P630 |
| Video Memory | - | 4 GB |
| Camera | Yes - 720p | Yes - 720p |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3232 | Realtek ALC3268 |
| Compliant Standards | High Definition Audio, Dolby Home Theater v4 | High Definition Audio |
| COMMUNICATIONS | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Wireless | Bluetooth, Wi-Fi | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| WWAN |
|---|
| Generation | WWAN upgradable | - |
|---|
| BATTERY | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|
| AC ADAPTER | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 170 Watt |
| INPUT | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Slots | 1 x ExpressCard/34 (1 free) M.2 Card |
1 x ExpressCard/34 (1 free) |
|---|---|---|
| Interfaces | 2 x USB 3.0 2 x USB 2.0 VGA Mini DisplayPort 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) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition | Windows 10 Pro 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) |
|---|
| MISCELLANEOUS | Lenovo ThinkPad T540p | Lenovo ThinkPad P51 |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Security | Trusted Platform Module (TPM 1.2) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip |
| 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, ThinkPad Roll Cage, 1 USB 2.0 (Always On) | Administrator password, hard drive password, power-on password, Intel Active Management Technology (iAMT), MIL-STD-810G tested |
| Compliant Standards | ISO 9001, ISO 14001, RoHS, ISO 27001 | ISO 9001, ISO 14001, ISO 27001 |
| ENERGY STAR Certified | Yes | Yes |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Limited warranty - 2 years - pick-up and return |
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