In depth comparison and review of HP 255 G8 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 G8 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
decent battery life
solid build quality
adequate performance
good connectivity options
average display quality
modest graphics power
limited storage capacity
no backlight 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 G8 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 |
| Colour | Dark ash silver | - |
| DISPLAY | HP 255 G8 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) | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | - |
| Image Brightness | 250 cd/m² | - |
| Colour Gamut | 45% NTSC | - |
| Features | Anti-glare, narrow-bezel design | - |
| PROCESSOR | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| CPU | AMD Ryzen 5 3500U / 2.1 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 3.7 GHz | - |
| Number of Cores | Quad-Core | - |
| Cache | L3 - 4 MB | - |
| 64-bit Computing | Yes | - |
| MEMORY | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| RAM | 8 GB (1 x 8 GB (non customer accessible / upgradeable)) | 0 GB |
|---|---|---|
| Max RAM Supported | 16 GB | 64 GB |
| RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM |
| Speed | 2400 MHz / PC4-19200 | - |
| Rated Speed | 2400 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | 2 |
| STORAGE | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe) | - |
|---|
| AUDIO & VIDEO | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Graphics Processor (GPU) | AMD Radeon Graphics | No graphics |
|---|---|---|
| Camera | Yes - HD | - |
| Camera Features | HP TrueVision HD | - |
| Video Resolutions | 720p | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers |
| Codec | - | Realtek ALC3247 |
| COMMUNICATIONS | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | - |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 200 | - |
| Network Interface | Gigabit Ethernet | - |
| Ethernet Controller | Realtek RTL8111HSH-CG | - |
| Compliant Standards | IEEE 802.11b, IEEE 802.11a, IEEE 802.11d, IEEE 802.11g, IEEE 802.11i, IEEE 802.11h, IEEE 802.11e, IEEE 802.11n, IEEE 802.11k, IEEE 802.11ac, IEEE 802.11r, IEEE 802.11v | - |
| Features | Dual stream (2x2) | - |
| BATTERY | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Technology | 3-cell Lithium Ion | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | - |
| AC ADAPTER | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19.5 V | 5 / 9 / 12 / 15 / 20 V |
| INPUT | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Type | Keyboard, touchpad | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium |
| Numeric Keypad | Yes | - |
| Features | Multi-touch touchpad, touchpad with gesture support | Volume control, spill-resistant, ClickPad with gesture support |
| CONNECTIONS & EXPANSIONS | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Interfaces | 2 x USB 3.2 Gen 1 USB-C 3.2 Gen 1 HDMI LAN Headphone/microphone combo jack |
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 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | No operating system |
|---|---|---|
| Software Included | HP Support Assistant, McAfee LiveSafe (30 days trial), HP Setup Integrated OOBE, HP Documentation, HP Audio Switch, HP JumpStart, Native Miracast, HP SSRM, Xerox DocuShare (90 days trial) | - |
| MISCELLANEOUS | HP 255 G8 Notebook | HP EliteBook 645 G9 Notebook |
|---|
| Included Accessories | Power adapter, HP Smart AC Adapter | - |
|---|---|---|
| Integrated Options | - | HP Tamper Lock |
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip |
| 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 | - | Automatic DriveLock, HP DriveLock, HP Fast Charge, BIOS Update via Network, MIL-STD-810H tested |
| Compliant Standards | UL, BSMI, CCC, FCC, ICES | 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 | 0 °C | 0 °C |
| Humidity Range Operating | 10 - 90% (non-condensing) | 10 - 90% (non-condensing) |
| Manufacturer Warranty | Limited warranty - parts and labour - 1 year | - |
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