In depth comparison and review of Lenovo ThinkPad P51 (20MN) and HP ZBook Firefly 16 G9 Mobile Workstation. 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 Lenovo ThinkPad P51 (20MN) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard
powerful processor
high-resolution display
good connectivity options
heavy and bulky
expensive
average battery life
noisy under load
Advantages and disadvantages of HP ZBook Firefly 16 G9 Mobile Workstation based on its technical characteristics, features, user experience, expert reviews and price level.
powerful intel processors
high-resolution display
lightweight design
robust security features
solid build quality
expensive price point
limited graphics performance
no OLED option
average battery life
| DESIGN AND DIMENSIONS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 37.74 cm x 25.23 cm x 2.94 cm | 35.87 cm x 25.1 cm x 1.92 cm |
| Weight | 2.67 kg | 1.938 kg |
| Case Material | Glass-fibre reinforced plastic, magnesium-aluminum alloy | - |
| Colour | Black | - |
| DISPLAY | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Screen Size (Type) | 15.6" - IPS | 16" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | WLED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | - |
| Image Brightness | 250 cd/m² | 1000 cd/m² |
| Colour Gamut | - | 100% sRGB |
| Privacy Technology | - | HP SureView Reflect |
| Features | Anti-glare, 160° viewing angle | Privacy filter, Low Blue Light Mode, Full HD ultra wide-viewing angle (UWVA) eDP anti-glare +PSR |
| PROCESSOR | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| CPU | Intel Xeon E3-1505MV5 / 2.8 GHz | Intel Core i7 (12th Gen) 1265U / 1.8 GHz |
|---|---|---|
| Max Turbo Speed | 3.7 GHz | 4.8 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | 8 MB | L3 - 12 MB |
| Chipset | Mobile Intel CM238 | - |
| Platform Technology | - | Intel vPro Platform |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| RAM | 16 GB (1 x 16 GB) | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 2133 MHz | 4800 MHz |
| Rated Speed | 2400 MHz | 4800 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
| Slots Qty | 4 | 2 |
| Empty Slots | 3 | 1 |
| STORAGE | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption, NVM Express (NVMe) - Samsung | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe), triple-level cell (TLC), HP Value |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA Quadro M2200 / Intel HD Graphics P530 | NVIDIA T550 / Intel Iris Xe Graphics |
| Max Monitors Supported | 3 external monitor(s) | - |
| Video Memory | 4 GB | 4 GB GDDR6 SDRAM |
| Camera | Yes - 720p | Yes |
| Resolution | - | 5 Megapixel |
| Camera Features | - | Privacy shutter, HP Auto Frame |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3268 | Realtek ALC3315 |
| Compliant Standards | High Definition Audio | High Definition Audio |
| Audio Features | - | Bang & Olufsen Audio, discrete amplifiers |
| COMMUNICATIONS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 8260 - M.2 Card | Intel Wi-Fi 6E AX 211 - PCI Express Mini Card (M.2) |
| Network Interface | Gigabit Ethernet | - |
| Bluetooth Class | - | Class 2 |
| Compliant Standards | - | IEEE 802.11d, IEEE 802.1x, IEEE 802.11i, Wi-Fi CERTIFIED, IEEE 802.11h, IEEE 802.11e, IEEE 802.11k, IEEE 802.11r, IEEE 802.11v |
| Features | - | Miracast, dual stream (2x2), CNVi |
| BATTERY | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Technology | 6-cell Lithium Ion | 6-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 76 Wh |
| Battery Life | Up to 8.9 hours | Up to 18 hours |
| AC ADAPTER | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | 170 Watt, 20 V | 110 Watt, 5 / 9 / 12 / 15 / 20 V |
| INPUT | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium |
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | - | Yes |
| Features | Spill-resistant, multi-touch touchpad | Volume control, spill-resistant, multi-touch clickpad, gesture function, precision touchpad, privacy, DuraKeys |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| 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 |
HDMI 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery) USB 3.2 Gen 1 (charging) USB 3.2 Gen 1 Headphone/microphone combo jack |
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card, SDXC UHS-II Card) | - |
| SOFTWARE | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Operating System (OS) | 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 | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - English |
|---|---|---|
| Software Included | - | HP Support Assistant, HP Power Manager, HP Hotkey Support, HP Secure Erase, HP Client Catalogue (free download), HP PC Hardware Diagnostics, HP MAC Address Manager, HP Notifications, HP Connection Optimizer, HP Privacy Settings, HP Cloud Recovery, HP QuickDrop, HP Client Management Script Library (free download), HP BIOSphere Gen6, HP Wake on WLAN, myHP, Touchpoint Customiser for Commercial, HSA Fusion for Commercial, HSA Telemetry for Commercial, HP Image Assistant Gen5 (free download), HP Easy Clean, HP Smart Support (free download), HP Manageability Integration Kit (free download), HP Quick Touch |
| MISCELLANEOUS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 16 G9 Mobile Workstation |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | HP 100W+10W Slim USB-C+USB-A AC Power Adapter |
| Integrated Options | - | Accelerometer, ambient light sensor, magnetometer, hall sensor, gyroscope, HP Tamper Lock, ambient colour sensor |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
| Security Slot Type | Kensington security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately), chassis intrusion sensor |
| Features | Administrator password, hard drive password, power-on password, MIL-STD-810G tested | Intel Active Management Technology (iAMT), HP Automatic Drive Lock, HP DriveLock, HP Fast Charge, BIOS Update via Network, Secured-core PC capable |
| Compliant Standards | RoHS | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FIPS 140-2 Level 2, FCC, RoHS, KCC, WEEE, A-Tick, ICES, Common Criteria EAL4+, CIT, low halogen, ICCP, MIL-STD 810H |
| 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 - parts and labour - 3 years Limited warranty - battery - 3 years |
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