Side by side comparison and review of HP ProBook 455 G9 Notebook and HP 255 G7 Notebook. 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 ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.94 cm x 23.39 cm x 1.99 cm | 37.6 cm x 24.6 cm x 2.25 cm |
| Weight | 1.74 kg | 1.78 kg |
| Colour | Natural silver | Dark ash silver |
| DISPLAY | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Screen Size (Type) | 15.6" - IPS | 15.6" |
|---|---|---|
| LCD Backlight Technology | WLED backlight | WLED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1366 x 768 (HD) |
| V-Sync Rate at Max Res. | 60 Hz | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | 250 cd/m² | 220 cd/m² |
| Colour Gamut | 45% NTSC | 45% NTSC |
| Features | Full HD ultra wide-viewing angle (UWVA) eDP anti-glare, narrow bezel bent | Slim Design, HD standard-viewing angle (SVA) eDP anti-glare |
| PROCESSOR | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| CPU | AMD Ryzen 5 5625U / 2.3 GHz | AMD Athlon Silver 3050U / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.3 GHz | 3.2 GHz |
| Number of Cores | 6-core | Dual-Core |
| Cache | L3 - 16 MB | L3 - 4 MB |
| MEMORY | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| RAM | 8 GB (1 x 8 GB) | 4 GB (1 x 4 GB (non customer accessible / upgradeable)) |
|---|---|---|
| Max RAM Supported | 32 GB | 16 GB |
| RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM |
| Speed | 3200 MHz | 2400 MHz / PC4-19200 |
| Rated Speed | 3200 MHz | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 1 |
| STORAGE | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe) | 128 GB SSD M.2 2280 SATA 6Gb/s - triple-level cell (TLC) |
|---|
| AUDIO & VIDEO | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Graphics Processor (GPU) | AMD Radeon Graphics | AMD Radeon Graphics |
|---|---|---|
| Camera | Yes - HD | Yes |
| Camera Features | Privacy shutter, IR camera | - |
| Video Resolutions | 720p | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| COMMUNICATIONS | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Wireless Controller | Realtek RTL8852BE | Realtek RTL8821CE - PCI Express Mini Card (M.2) |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Realtek RTL8111HSH | - |
| 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) | Miracast, single stream (1x1), CNVi |
| BATTERY | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Technology | 3-cell lithium polymer | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 42.75 Wh | 41 Wh |
| Battery Life | - | Up to 10.5 hours |
| AC ADAPTER | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Input | AC 115/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19.5 V | 45 Watt, 19.5 V |
| INPUT | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Type | Keyboard, ClickPad | Keyboard, touchpad |
|---|---|---|
| Keyboard Name | HP Premium | - |
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch clickpad, gesture function | Volume control, multi-touch touchpad, touchpad with gesture support |
| CONNECTIONS & EXPANSIONS | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Interfaces | USB4 (supports DisplayPort 1.4 Alt Mode) (Power Delivery) LAN USB 3.2 Gen 1 HDMI Headphone/microphone combo jack USB 3.2 Gen 1 (powered) USB 3.2 Gen 1 (Power Delivery) |
2 x USB 3.1 Gen 1 USB 2.0 HDMI Headphone/microphone combo jack LAN |
|---|---|---|
| Memory Card Reader | Yes (SD Card, SDXC Card) | Yes (SD Card, SDHC Card, SDXC Card) |
| SOFTWARE | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Operating System (OS) | Windows 11 Home - English | Windows 10 Pro 64-bit Edition National Academic - English |
|---|---|---|
| Software Included | HP Support Assistant, HP Hotkey Support, HP Drive Packs (free download), HP Client Catalogue (free download), HP PC Hardware Diagnostics, HP Notifications, HP Connection Optimizer, HP Privacy Settings, HP QuickDrop, HP Client Management Script Library (free download), myHP, Touchpoint Customiser for Commercial, HP Image Assistant Gen5 (free download), HP Smart Support (free download), HP Smart Support, HP Manageability Integration Kit (free download), HP Quick Touch, HP Connect for Microsoft Endpoint Manager, HP Patch Assistant (free download) | HP Support Assistant, McAfee LiveSafe, HP Setup Integrated OOBE, HP Documentation, HP Audio Switch, HP JumpStart, HP SSRM |
| MISCELLANEOUS | HP ProBook 455 G9 Notebook | HP 255 G7 Notebook |
|---|
| Included Accessories | HP 45 Watt Smart AC Adapter | HP 45 Watt Smart nPFC AC Adapter |
|---|---|---|
| Integrated Options | HP Tamper Lock | - |
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Trusted Platform Module (TPM 1.2) and firmware (TPM 2.0) |
| 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, HP Fast Charge, BIOS Update via Network, HP Sure Click, HP Sure Sense, HP Secure Erase, HP Sure Admin, HP Client Security Manager Gen 7, HP BIOSphere Gen 6, HP Sure Start Gen 7, Secured-core PC enabled, HP Sure Run Gen 5 | - |
| Compliant Standards | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FIPS 140-2 Level 2, FCC, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP, BNCI | UL, VCCI, BSMI, GOST, SABS, CCC, FCC, A-Tick, ICES, KC, CIT, low halogen, 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% (non-condensing) |
| Manufacturer Warranty | Limited warranty - parts and labour - 1 year | Limited warranty - parts and labour - 1 year |
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