In depth comparison and review of Lenovo ThinkPad P51 (20HJ) and HP Zbook 17 G3. 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 Zbook 17 G3 based on its technical characteristics, features, user experience, expert reviews and price level.
powerful quad-core processor
high-resolution dreamcolor display
expandable memory options
robust connectivity features
durable aluminum chassis
heavy and bulky
expensive base model
average battery life
noisy under load
| DESIGN AND DIMENSIONS | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 37.74 cm x 25.23 cm x 2.94 cm | 42 cm x 28 cm x 3 cm |
| Weight | 2.55 kg | 3 kg |
| Case Material | Glass-fibre reinforced plastic, magnesium-aluminum alloy | Aluminum, magnesium alloy |
| Colour | Black | Space Silver |
| DISPLAY | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Screen Size (Type) | 15.6" - IPS | 17.3" |
|---|---|---|
| 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 | - |
| Features | Anti-glare | - |
| PROCESSOR | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| CPU | Intel Core i7 (7th Gen) 7820HQ / 2.9 GHz | Intel Core i7 (6th Gen) 6820HQ / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 3.6 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 8 MB | 8 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | Mobile Intel CM238 | Mobile Intel CM236 Express |
| Platform Technology | - | Intel vPro Platform |
| Features | Integrated memory controller | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache |
| MEMORY | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| RAM | 8 GB (1 x 8 GB) | 16 GB |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM - non-ECC |
| Speed | 2400 MHz | 2133 MHz / PC4-17000 |
| Rated Speed | 2400 MHz | 2133 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 4 | 4 |
| Empty Slots | 3 | - |
| STORAGE | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Main Storage Size (HDD/SSD) | 500 GB HDD SATA 6Gb/s / 7200 rpm | 256 GB SSD |
|---|---|---|
| Optical Drive | - | DVD-Writer external |
| AUDIO & VIDEO | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA Quadro M1200 / Intel HD Graphics 630 | NVIDIA Quadro M3000M |
| Video Memory | 4 GB | 4 GB GDDR5 SDRAM |
| Video System Features | - | Shader Model 5.0, AMD Enduro technology |
| Camera | Yes - 720p | Yes - 720p |
| Camera Features | - | 720p HD movie recording, low light enhancement |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Codec | Realtek ALC3268 | CX7501 |
| Compliant Standards | High Definition Audio | High Definition Audio |
| Audio Features | - | Bang & Olufsen Audio |
| COMMUNICATIONS | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 8265 - M.2 Card | - |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| BATTERY | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Technology | 4-cell Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 66 Wh | - |
| Battery Life | Up to 6.5 hours | - |
| AC ADAPTER | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 170 Watt, 20 V | - |
| INPUT | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad, pointing stick |
|---|---|---|
| Numeric Keypad | Yes | - |
| Features | Spill-resistant, multi-touch touchpad | Volume control, spill-resistant, touchpad with gesture support |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Slots | 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 |
VGA HDMI 2 x Thunderbolt 3 Headphone/microphone combo jack LAN 3 x USB 3.0 USB 3.0 (charging) |
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card, SDXC UHS-II Card) | Yes (SD Card, SDHC Card, SDXC Card, SDXC UHS-II Card) |
| SOFTWARE | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition | Windows 10 Home (Microsoft Authorized Refurbisher (MAR)) |
|---|
| MISCELLANEOUS | Lenovo ThinkPad P51 (20HJ) | HP Zbook 17 G3 |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Trusted Platform Module (TPM 1.2) 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, ThinkVantage Active Protection System, MIL-STD-810G tested | HP 3D DriveGuard, Intel Active Management Technology (iAMT), HP DuraKeys, HP SpareKey, One-Step Logon, HP BIOS Protection, SecureBoot, HP Automatic Drive Lock, HP DriveLock, Hybrid Boot, Master Record Security, Measured Boot, Power On Authentication, Pre-Boot Security, Pre-boot Authentication, HP Sure Start with Dynamic Protection |
| Compliant Standards | RoHS | 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 |
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