Side by side comparison and review of Lenovo ThinkPad P51 (20MN) and HP ZBook Firefly 14 G9 Mobile Workstation. 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.
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 14 G9 Mobile Workstation based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
powerful processor performance
bright, color-accurate display
robust security features
solid build quality
expensive price point
limited graphics capability
no HDMI port
average battery life
| DESIGN AND DIMENSIONS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 G9 Mobile Workstation |
|---|
| Product Type | Mobile workstation | Mobile workstation |
|---|---|---|
| Dimensions (WxDxH) | 37.74 cm x 25.23 cm x 2.94 cm | 31.56 cm x 22.405 cm x 1.92 cm |
| Weight | 2.67 kg | 1.439 kg |
| Case Material | Glass-fibre reinforced plastic, magnesium-aluminum alloy | - |
| Colour | Black | - |
| DISPLAY | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 G9 Mobile Workstation |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" - 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 | 250 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | Anti-glare, 160° viewing angle | - |
| PROCESSOR | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 G9 Mobile Workstation |
|---|
| CPU | Intel Xeon E3-1505MV5 / 2.8 GHz | Intel Core i7 (12th Gen) 1265U / 2.7 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 | - |
| Features | Integrated memory controller | Intel Turbo Boost Technology |
| MEMORY | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 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 | - |
| Slots Qty | 4 | 2 |
| Empty Slots | 3 | 0 |
| STORAGE | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 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), HP Value |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 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 - HD |
| Resolution | - | 5 Megapixel |
| Camera Features | - | Privacy shutter |
| Video Resolutions | - | 720p |
| Sound | Stereo speakers, dual array microphone | Dual stereo speakers |
| Codec | Realtek ALC3268 | - |
| Compliant Standards | High Definition Audio | - |
| Audio Features | - | Bang & Olufsen Audio |
| COMMUNICATIONS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 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 | - |
| Features | - | Miracast, dual stream (2x2) |
| BATTERY | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 G9 Mobile Workstation |
|---|
| Technology | 6-cell Lithium Ion | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 51 Wh |
| Battery Life | Up to 8.9 hours | Up to 13 hours |
| AC ADAPTER | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 G9 Mobile Workstation |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | 170 Watt, 20 V | 65 Watt, 5 / 9 / 12 / 15 / 20 V |
| INPUT | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 G9 Mobile Workstation |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium Quiet Keyboard |
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | Spill-resistant, multi-touch touchpad | Spill-resistant, multi-touch clickpad, gesture function, precision touchpad, silent keys, DuraKeys |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 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 3.0, Sleep & Charge) 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 14 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 |
|---|
| MISCELLANEOUS | Lenovo ThinkPad P51 (20MN) | HP ZBook Firefly 14 G9 Mobile Workstation |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | HP 65 Watt nPFC USB-C AC Adapter |
| Integrated Options | - | HP Tamper Lock |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip, 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) |
| Features | Administrator password, hard drive password, power-on password, MIL-STD-810G tested | Spill resistant keyboard, HP Fast Charge, HP Secure Erase |
| Compliant Standards | RoHS | CSA, UL, VCCI, BSMI, SABS, CCC, FCC, KCC, A-Tick, ICES, EAC, CIT, ICCP, RED, 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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