In depth comparison and review of HP ProBook 455 G6 Notebook and HP 255 G9 Notebook. 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 HP ProBook 455 G6 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
robust build quality
comfortable keyboard
adequate performance
good connectivity options
average display quality
modest battery life
heavier design
limited graphics performance
Advantages and disadvantages of HP 255 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
decent battery life
adequate port selection
includes numeric keypad
average display quality
modest processor performance
limited graphics capabilities
no backlit keyboard
| DESIGN AND DIMENSIONS | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.49 cm x 25.69 cm x 1.9 cm | 35.8 cm x 24.2 cm x 1.99 cm |
| Weight | 2 kg | 1.74 kg |
| Case Material | Aluminum | - |
| Colour | Pike silver | - |
| DISPLAY | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | WLED backlight | WLED 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 Brightness | 220 cd/m² | 250 cd/m² |
| Colour Gamut | 67% sRGB | 45% NTSC |
| Features | Slim Design, Full HD ultra wide-viewing angle (UWVA) eDP anti-glare | Full HD ultra wide-viewing angle (UWVA) eDP anti-glare, Micro Edge, narrow-bezel design |
| PROCESSOR | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| CPU | AMD Ryzen 3 2200U / 2.5 GHz | AMD Ryzen 5 5625U / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | 4.3 GHz |
| Number of Cores | Dual-Core | 6-core |
| Cache | 4 MB | L3 - 16 MB |
| 64-bit Computing | Yes | - |
| MEMORY | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| RAM | 4 GB (1 x 4 GB) | 8 GB (1 x 8 GB (non customer accessible / upgradeable)) |
|---|---|---|
| Max RAM Supported | 16 GB | 32 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM - non-ECC |
| Speed | 2400 MHz / PC4-19200 | 3200 MHz |
| Rated Speed | 2400 MHz | 3200 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 1 |
| STORAGE | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 2280 SATA 6Gb/s - triple-level cell (TLC) | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe), HP Value |
|---|
| AUDIO & VIDEO | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Graphics Processor (GPU) | AMD Radeon Vega 3 | AMD Radeon Graphics |
|---|---|---|
| Video System Features | - | AMD FreeSync |
| Camera | Yes - HD | Yes - HD |
| Camera Features | - | Temporal Noise Reduction |
| Video Resolutions | 720p | 720p |
| Sound | Stereo speakers, array microphone | Dual stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3247 |
| COMMUNICATIONS | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
|---|---|---|
| Wireless Controller | - | Realtek RTL8852BE - PCI Express Mini Card (M.2) |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Realtek RTL8111HSH-CG | - |
| Bluetooth Class | - | Class 2 |
| Compliant Standards | IEEE 802.1x, IEEE 802.11i | IEEE 802.1x, IEEE 802.11i, Wi-Fi CERTIFIED |
| Remote Management Protocol | - | SNMP 2 |
| Features | - | Miracast, Wake-on-LAN (WOL), dual stream (2x2), MU-MIMO |
| BATTERY | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Technology | 3-cell lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | 41 Wh |
| Battery Life | - | Up to 10.25 hours |
| AC ADAPTER | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 115/230 V (50 - 60 Hz) |
|---|---|---|
| Output | 45 Watt, 19.5 V | 45 Watt, 19.5 V, 8 A |
| INPUT | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Type | Keyboard, ClickPad | Keyboard, touchpad |
|---|---|---|
| Keyboard Name | HP Premium | - |
| Numeric Keypad | Yes | Yes |
| Features | Spill-resistant, multi-touch clickpad, ClickPad with gesture support | Multi-touch touchpad, gesture function, precision touchpad, PTP certified touchpad |
| CONNECTIONS & EXPANSIONS | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Interfaces | USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) 2 x USB 3.1 Gen 1 USB 2.0 (charging) HDMI LAN Headphone/microphone combo jack |
Headphone/microphone combo jack USB-C 3.2 Gen 1 HDMI LAN 2 x USB 3.2 Gen 1 |
|---|---|---|
| Memory Card Reader | Yes (SD Card) | Yes (SD Card, SDHC Card, SDXC Card) |
| SOFTWARE | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 11 Home - English |
|---|---|---|
| Software Included | - | HP Support Assistant, Dropbox, McAfee (30 days trial), HP Audio Switch, HP PC Hardware Diagnostics, HP Connection Optimizer, HP Privacy Settings, ExpressVPN (30 days trial), HP QuickDrop, HP Smart App, myHP, Touchpoint Customiser for Commercial, LastPass password manager (30 days trial), HP Smart Health (free download) |
| MISCELLANEOUS | HP ProBook 455 G6 Notebook | HP 255 G9 Notebook |
|---|
| Included Accessories | Power adapter | HP 45 Watt Smart nPFC AC Adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | BIOS Absolute Persistence, HP Automatic Drive Lock, HP DriveLock, Power On Authentication, Pre-boot Authentication, Master Boot Record Security | HP Fast Charge |
| Compliant Standards | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FCC, A-Tick, ICES, KC, CIT, ICCP | UL, VCCI, BSMI, SABS, CCC, FCC, A-Tick, ICES, KC, EAC, CU, ICCP |
| ENERGY STAR Certified | Yes | Yes |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 0 °C | 5 °C |
| Humidity Range Operating | 10 - 90% (non-condensing) | 10 - 90% |
| Manufacturer Warranty | Limited warranty - 1 year | Limited warranty - parts and labour - 1 year Limited warranty - battery - 1 year |
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