In depth comparison and review of HP ZBook Power G8 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 Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 35.94 cm x 23.39 cm x 2.28 cm | 37.74 cm x 25.23 cm x 2.94 cm |
| Weight | 1.9 kg | 2.55 kg |
| Case Material | ABS plastic, anodised aluminium | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
| Colour | - | Black |
| DISPLAY | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Screen Size (Type) | 15.6" - IPS | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | WLED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | 250 cd/m² | 250 cd/m² |
| Colour Gamut | 45% NTSC | - |
| Features | Ambient light sensor, Full HD eDP anti-glare | Anti-glare |
| PROCESSOR | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| CPU | Intel Core i7 (11th Gen) 11800H | Intel Core i7 (7th Gen) 7820HQ / 2.9 GHz |
|---|---|---|
| Max Turbo Speed | 4.6 GHz | 3.9 GHz |
| Number of Cores | 8-core | Quad-Core |
| Cache | 24 MB | 8 MB |
| 64-bit Computing | - | Yes |
| Chipset | Intel WM590 | Mobile Intel CM238 |
| Features | Intel Turbo Boost Technology | Integrated memory controller |
| MEMORY | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| RAM | 8 GB (1 x 8 GB) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM - non-ECC |
| Speed | 3200 MHz | 2400 MHz |
| Rated Speed | 3200 MHz | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 4 |
| Empty Slots | 1 | 3 |
| STORAGE | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe), triple-level cell (TLC) | 500 GB HDD SATA 6Gb/s / 7200 rpm |
|---|
| AUDIO & VIDEO | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA T600 / Intel UHD Graphics | NVIDIA Quadro M1200 / Intel HD Graphics 630 |
| Video Memory | 4 GB GDDR6 SDRAM | 4 GB |
| Camera | Yes - HD | Yes - 720p |
| Camera Features | IR camera, camera cover | - |
| Video Resolutions | 720p | - |
| Sound | Dual stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3268 |
| Compliant Standards | High Definition Audio | High Definition Audio |
| COMMUNICATIONS | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 201 - PCI Express Mini Card (M.2) | Intel Dual Band Wireless-AC 8265 - M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Intel I219-V | - |
| Bluetooth Class | Class 2 | - |
| Features | Dual stream (2x2), MU-MIMO | - |
| BATTERY | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Technology | 6-cell lithium polymer | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 83 Wh | 66 Wh |
| Battery Life | Up to 12 hours | Up to 6.5 hours |
| AC ADAPTER | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Input | AC 115/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 150 Watt, 19.5 V | 170 Watt, 20 V |
| INPUT | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Type | Keyboard, ClickPad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Name | HP Premium Quiet Keyboard | - |
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | - |
| Features | Programmable buttons, volume control, spill-resistant, multi-touch clickpad, gesture function, precision touchpad, glass clickpad | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Slots | 1 x M.2 (PCI Express 4.0 x4) (0 free) 1 x M.2 (PCI Express 3.0 x4) (0 free) |
1 x ExpressCard/34 (1 free) |
|---|---|---|
| Interfaces | USB-C 3.1 Gen 2 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (BC1.2 charging) HDMI USB 3.1 Gen 1 (charging) Headphone/microphone combo jack LAN 2 x USB 3.1 Gen 1 |
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) |
| SOFTWARE | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - English | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | HP ZBook Power G8 Mobile Workstation | Lenovo ThinkPad P51 (20HJ) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | HP 150 Watt Smart PFC Slim AC Adapter | Power adapter |
| Integrated Options | Tile module, HP Tamper Lock | - |
| 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 nano security slot | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Automatic DriveLock, BIOS Absolute Persistence, HP DriveLock, BIOS Update via Network, HP Sure Click, HP Sure Sense, HP Secure Erase, HP Sure Start Gen 6, HP Sure Admin, HP Sure Run Gen 4, HP Client Security Manager Gen 7, HP BIOSphere Gen 6, HP Sure Recover Gen 4 | Administrator password, hard drive password, power-on password, ThinkVantage Active Protection System, MIL-STD-810G tested |
| Compliant Standards | CSA, UL, VCCI, BSMI, GOST, CCC, FCC, KCC, A-Tick, ICES, low halogen, ICCP, RED, MIL-STD-810H, BNCI | RoHS |
| ENERGY STAR Certified | Yes | Yes |
| TCO Certified | TCO Certified Notebooks 8 | - |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | Limited warranty - parts and labour - 3 years Limited warranty - battery - 3 years |
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