Side by side comparison and review of HP ZBook Power G9 Mobile Workstation and Lenovo ThinkPad P51 (20MN). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| 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 | 2.67 kg |
| Case Material | ABS plastic, anodised aluminium, metal, talc | Glass-fibre reinforced plastic, magnesium-aluminum alloy |
| Colour | - | Black |
| DISPLAY | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | WLED backlight | LED backlight |
| Screen Resolution | - | 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 |
| Features | - | Anti-glare, 160° viewing angle |
| PROCESSOR | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| CPU | Intel Core i7 (12th Gen) 12800H / 2.4 GHz | Intel Xeon E3-1505MV5 / 2.8 GHz |
|---|---|---|
| Max Turbo Speed | 4.8 GHz | 3.7 GHz |
| Number of Cores | 14-core | Quad-Core |
| Cache | L3 - 24 MB | 8 MB |
| Chipset | - | Mobile Intel CM238 |
| Features | Intel Turbo Boost Max Technology 3.0 | Integrated memory controller |
| MEMORY | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| RAM | 0 MB | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR5 SDRAM | DDR4 SDRAM |
| Speed | - | 2133 MHz |
| Rated Speed | - | 2400 MHz |
| Form Factor | SO-DIMM 262-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 4 |
| Empty Slots | 2 | 3 |
| STORAGE | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Main Storage Size (HDD/SSD) | - | 512 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption, NVM Express (NVMe) - Samsung |
|---|
| AUDIO & VIDEO | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA RTX A2000 / Intel Iris Xe Graphics | NVIDIA Quadro M2200 / Intel HD Graphics P530 |
| Max Monitors Supported | - | 3 external monitor(s) |
| Video Memory | 8 GB GDDR6 SDRAM | 4 GB |
| Camera | - | Yes - 720p |
| Sound | Stereo speakers | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3315 | Realtek ALC3268 |
| Compliant Standards | High Definition Audio | High Definition Audio |
| Audio Features | Bang & Olufsen Audio, discrete amplifiers | - |
| COMMUNICATIONS | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Wireless | - | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | - | Intel Dual Band Wireless-AC 8260 - M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Intel I219-V | - |
| BATTERY | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Technology | - | 6-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | - | 90 Wh |
| Battery Life | - | Up to 8.9 hours |
| AC ADAPTER | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Input | - | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 170 Watt, 20 V |
| INPUT | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Type | Keyboard, ClickPad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Name | HP Premium | - |
| Numeric Keypad | - | Yes |
| Features | Volume control, spill-resistant, multi-touch clickpad, gesture function, precision touchpad | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Slots | - | 1 x ExpressCard/34 (1 free) |
|---|---|---|
| Interfaces | USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery, Sleep & Charge) 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 G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Operating System (OS) | No operating system | Microsoft Windows 7 Professional 64-bit Edition (available through downgrade rights from Windows 10 Pro for Workstations 64-bit Edition) + Windows 10 Pro for Workstations 64-bit Edition Licence |
|---|
| MISCELLANEOUS | HP ZBook Power G9 Mobile Workstation | Lenovo ThinkPad P51 (20MN) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | - | Power adapter |
| Integrated Options | Accelerometer, magnetometer, gyro sensor, hall sensor | - |
| 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 nano security slot | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately), chassis intrusion sensor | Security lock slot (cable lock sold separately) |
| Features | Automatic DriveLock, HP DriveLock, HP Fast Charge, BIOS Update via Network | Administrator password, hard drive password, power-on password, MIL-STD-810G tested |
| Compliant Standards | CSA, UL, VCCI, BSMI, SABS, CCC, FIPS 140-2 Level 2, FCC, RoHS, KCC, WEEE, A-Tick, ICES, Common Criteria EAL4+, EAC, CIT, ICCP, MIL-STD-810H | 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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