In depth comparison and review of HP EliteBook 840 G4 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 HP EliteBook 840 G4 based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
solid build quality
comfortable keyboard
good battery life
decent performance
average display quality
no touchscreen option
limited graphics power
heavier design
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 | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 33.8 cm x 23.7 cm x 1.89 cm | 37.74 cm x 25.23 cm x 2.94 cm |
| Weight | 1.48 kg | 2.67 kg |
| Case Material | Aluminum, magnesium alloy | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
| Colour | - | Black |
| DISPLAY | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Screen Size (Type) | 14" - IPS | 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 | 300 cd/m² | 250 cd/m² |
| Features | Slim Design, Full HD ultra wide-viewing angle (UWVA) eDP anti-glare | Anti-glare |
| PROCESSOR | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| CPU | Intel Core i5 (7th Gen) 7200U / 2.5 GHz | Intel Xeon E3-1505MV6 / 3 GHz |
|---|---|---|
| Max Turbo Speed | 3.1 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 | Intel Turbo Boost Technology 2.0 | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
| MEMORY | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| RAM | 8 GB | 16 GB |
|---|---|---|
| Max RAM Supported | 32 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | - | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 4 |
| STORAGE | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD | 512 GB SSD |
|---|
| AUDIO & VIDEO | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel HD Graphics 620 | NVIDIA Quadro M2200 / Intel HD Graphics P630 |
| Video Memory | - | 4 GB |
| Camera | Yes - 720p | Yes - 720p |
| Sound | Stereo speakers, two microphones | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3268 |
| Compliant Standards | - | High Definition Audio |
| Audio Features | Noise-cancellation technology, Bang & Olufsen Audio, HP Audio Boost | - |
| COMMUNICATIONS | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| BATTERY | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|
| AC ADAPTER | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 170 Watt |
| INPUT | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Type | Keyboard, touchpad, pointing stick | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | - |
| Features | Touchpad with gesture support | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Slots | 1 x SIM card (1 free) | 1 x ExpressCard/34 (1 free) |
|---|---|---|
| Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (charging) USB-C DisplayPort VGA 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 | Yes (SD Card, SDHC Card, SDXC Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Pro 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) |
|---|
| MISCELLANEOUS | HP EliteBook 840 G4 | Lenovo ThinkPad P51 |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Security | Trusted Platform Module (TPM 2.0) 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 | HP 3D DriveGuard, Automatic DriveLock, HP DriveLock, Power On Authentication, Pre-boot Authentication, HP Sure Start Gen 3, Master Boot Record Security | Administrator password, hard drive password, power-on password, Intel Active Management Technology (iAMT), MIL-STD-810G tested |
| Compliant Standards | ISO 9001, ISO 14001, ISO 27001 | ISO 9001, ISO 14001, ISO 27001 |
| ENERGY STAR Certified | Yes | Yes |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Limited warranty - 2 years - pick-up and return |
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