In depth comparison and review of HP ZBook 15 G5 Mobile Workstation and Lenovo ThinkPad P51 (20HJ). 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.
| DESIGN AND DIMENSIONS | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 37.6 cm x 26.4 cm x 2.6 cm | 37.74 cm x 25.23 cm x 2.94 cm |
| Weight | 2.6 kg | 2.55 kg |
| Case Material | Aluminum, magnesium alloy | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
| Colour | Turbo silver | Black |
| DISPLAY | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | - | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | - | 250 cd/m² |
| Features | - | Anti-glare |
| PROCESSOR | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| CPU | Intel Core i7 (8th Gen) 8750H / 2.2 GHz | Intel Core i7 (7th Gen) 7820HQ / 2.9 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 3.9 GHz |
| Number of Cores | 6-core | Quad-Core |
| Cache | L3 - 9 MB | 8 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | Mobile Intel CM246 | Mobile Intel CM238 |
| Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache, Intel Optane Memory Supported | Integrated memory controller |
| MEMORY | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| RAM | 0 GB | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM - non-ECC |
| Speed | - | 2400 MHz |
| Rated Speed | - | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | - | 4 |
| Empty Slots | 4 | 3 |
| STORAGE | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Main Storage Size (HDD/SSD) | - | 500 GB HDD SATA 6Gb/s / 7200 rpm |
|---|
| AUDIO & VIDEO | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel UHD Graphics 630 | NVIDIA Quadro M1200 / Intel HD Graphics 630 |
| Video Memory | - | 4 GB |
| Camera | - | Yes - 720p |
| Sound | Stereo speakers | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3268 |
| Compliant Standards | High Definition Audio | High Definition Audio |
| Audio Features | Bang & Olufsen Audio, HP Clear Sound Amp | - |
| COMMUNICATIONS | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Wireless | - | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | - | Intel Dual Band Wireless-AC 8265 - M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Compliant Standards | IEEE 802.3, IEEE 802.3u, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x | - |
| Remote Management Protocol | SNMP 2 | - |
| Features | Wake-on-LAN (WOL) | - |
| BATTERY | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Technology | - | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | - | 66 Wh |
| Battery Life | - | Up to 6.5 hours |
| AC ADAPTER | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Input | - | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 170 Watt, 20 V |
| INPUT | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Type | - | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Slots | - | 1 x ExpressCard/34 (1 free) |
|---|---|---|
| Interfaces | LAN USB 3.0 (charging) HDMI 2 x USB-C 3.1 (supports Thunderbolt 3, DisplayPort 1.3 Alt Mode) Headphone/microphone combo jack 2 x USB 3.0 |
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, SDXC UHS-II Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card, SDXC UHS-II Card) |
| SOFTWARE | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Operating System (OS) | No operating system | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | HP ZBook 15 G5 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | - | Power adapter |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, 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 | HP DuraKeys, Automatic DriveLock, HP DriveLock, Measured Boot, Power On Authentication, Pre-boot Authentication, Master Boot Record Security, BIOS Update via Network, HP Sure Click | Administrator password, hard drive password, power-on password, ThinkVantage Active Protection System, MIL-STD-810G tested |
| Compliant Standards | ACPI, CSA, UL, FCC, RoHS, WEEE, Common Criteria EAL4+, low halogen | RoHS |
| ENERGY STAR Certified | - | Yes |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
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