In depth comparison and review of HP 255 G9 Notebook and HP EliteBook 645 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 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
Advantages and disadvantages of HP EliteBook 645 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
powerful amd processor
lightweight and portable
high-resolution display
fast charging support
average battery life
limited storage capacity
no dedicated gpu
higher price point
| DESIGN AND DIMENSIONS | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 35.8 cm x 24.2 cm x 1.99 cm | 32.19 cm x 21.39 cm x 1.99 cm |
| Weight | 1.74 kg | 1.37 kg |
| DISPLAY | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" |
|---|---|---|
| LCD Backlight Technology | WLED backlight | WLED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | - |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Brightness | 250 cd/m² | - |
| Colour Gamut | 45% NTSC | - |
| Features | Full HD ultra wide-viewing angle (UWVA) eDP anti-glare, Micro Edge, narrow-bezel design | - |
| PROCESSOR | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| CPU | AMD Ryzen 5 5625U / 2.3 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 4.3 GHz | - |
| Number of Cores | 6-core | - |
| Cache | L3 - 16 MB | - |
| MEMORY | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| RAM | 8 GB (1 x 8 GB (non customer accessible / upgradeable)) | 0 GB |
|---|---|---|
| Max RAM Supported | 32 GB | 64 GB |
| RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM |
| Speed | 3200 MHz | - |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 2 |
| STORAGE | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe), HP Value | - |
|---|
| AUDIO & VIDEO | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Graphics Processor (GPU) | AMD Radeon Graphics | No graphics |
|---|---|---|
| Video System Features | AMD FreeSync | - |
| Camera | Yes - HD | - |
| Camera Features | Temporal Noise Reduction | - |
| Video Resolutions | 720p | - |
| Sound | Dual stereo speakers, dual array microphone | Stereo speakers |
| Codec | Realtek ALC3247 | Realtek ALC3247 |
| COMMUNICATIONS | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | - |
|---|---|---|
| Wireless Controller | Realtek RTL8852BE - PCI Express Mini Card (M.2) | - |
| Network Interface | Gigabit Ethernet | - |
| Bluetooth Class | Class 2 | - |
| Compliant Standards | 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 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Technology | 3-cell lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | - |
| Battery Life | Up to 10.25 hours | - |
| AC ADAPTER | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Input | AC 115/230 V (50 - 60 Hz) | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19.5 V, 8 A | 5 / 9 / 12 / 15 / 20 V |
| INPUT | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Type | Keyboard, touchpad | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium |
| Numeric Keypad | Yes | - |
| Features | Multi-touch touchpad, gesture function, precision touchpad, PTP certified touchpad | Volume control, spill-resistant, ClickPad with gesture support |
| CONNECTIONS & EXPANSIONS | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Interfaces | Headphone/microphone combo jack USB-C 3.2 Gen 1 HDMI LAN 2 x USB 3.2 Gen 1 |
USB-C 3.2 Gen 2 (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) |
|---|---|---|
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | - |
| SOFTWARE | HP 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Operating System (OS) | Windows 11 Home - English | No operating system |
|---|---|---|
| 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 255 G9 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Included Accessories | 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 2.0) Security Chip |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately), chassis intrusion sensor |
| Features | HP Fast Charge | Automatic DriveLock, HP DriveLock, HP Fast Charge, BIOS Update via Network, MIL-STD-810H tested |
| Compliant Standards | UL, VCCI, BSMI, SABS, CCC, FCC, A-Tick, ICES, KC, EAC, CU, ICCP | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FCC, RoHS, WEEE, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP, BNCI |
| ENERGY STAR Certified | Yes | - |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 5 °C | 0 °C |
| Humidity Range Operating | 10 - 90% | 10 - 90% (non-condensing) |
| Manufacturer Warranty | Limited warranty - parts and labour - 1 year Limited warranty - battery - 1 year |
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