In depth comparison and review of HP EliteBook 840 G9 Notebook and HP ProBook 455 G8 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 EliteBook 840 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
premium build quality
powerful intel processors
bright display options
excellent keyboard feel
higher price point
average battery life
no dedicated GPU
limited color options
Advantages and disadvantages of HP ProBook 455 G8 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust aluminum chassis
efficient AMD processor
comfortable keyboard design
good battery life
fast charging support
modest display brightness
no thunderbolt support
limited upgrade options
average speaker quality
| DESIGN AND DIMENSIONS | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31.56 cm x 22.405 cm x 1.92 cm | 35.94 cm x 23.39 cm x 1.99 cm |
| Weight | 1.36 kg | 1.74 kg |
| Colour | - | Pike silver aluminium |
| DISPLAY | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Screen Size (Type) | 14" | 15.6" |
|---|---|---|
| LCD Backlight Technology | WLED backlight | WLED backlight |
| Screen Resolution | 1920 x 1200 (WUXGA) | 1366 x 768 (HD) |
| V-Sync Rate at Max Res. | 60 Hz | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | - |
| Image Brightness | - | 250 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | WUXGA ultra wide-viewing angle (UWVA) anti-glare eDP | HD standard-viewing angle (SVA) eDP anti-glare, narrow-bezel design |
| PROCESSOR | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| CPU | Intel Core i5 (12th Gen) 1235U / 1.3 GHz | AMD Ryzen 3 5400U / 2.6 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 4 GHz |
| Number of Cores | 10-core | Quad-Core |
| Cache | L3 - 12 MB | L3 - 8 MB |
| Features | Intel Turbo Boost Technology | - |
| MEMORY | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| RAM | 0 GB | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 32 GB |
| RAM Type | DDR5 SDRAM | DDR4 SDRAM |
| Speed | - | 3200 MHz |
| Rated Speed | - | 3200 MHz |
| Form Factor | SO-DIMM 262-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 2 | 1 |
| STORAGE | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Main Storage Size (HDD/SSD) | - | 256 GB SSD M.2 2280 PCIe 3.0 - NVM Express (NVMe), HP Value |
|---|
| AUDIO & VIDEO | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | AMD Radeon Graphics |
|---|---|---|
| Memory Allocation Technology | - | Shared Video Memory (UMA) |
| Video System Features | Functions as Intel UHD graphics (for single-channel memory) | - |
| Camera | - | Yes - HD |
| Camera Features | - | Privacy shutter |
| Video Resolutions | - | 720p |
| Sound | Dual stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3315 | - |
| Audio Features | Bang & Olufsen Audio, discrete amplifiers | - |
| COMMUNICATIONS | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Wireless | - | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | - | PCI Express Mini Card (M.2) |
| Network Interface | - | Gigabit Ethernet |
| Bluetooth Class | - | Class 2 |
| Compliant Standards | - | IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.3ab, IEEE 802.11d, IEEE 802.1x, IEEE 802.11i, IEEE 802.11h, IEEE 802.11e, IEEE 802.11k, IEEE 802.11r, IEEE 802.11v |
| Remote Management Protocol | - | SNMP 2 |
| Features | - | Wake-on-LAN (WOL), dual stream (2x2), MU-MIMO |
| BATTERY | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Technology | 3-cell lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | - | 45 Wh |
| Battery Life | - | Up to 14.75 hours |
| AC ADAPTER | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Input | - | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 45 Watt, 5 / 9 / 12 / 15 / 20 V |
| INPUT | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Type | Keyboard, ClickPad | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | HP Premium | HP Premium |
| Numeric Keypad | - | Yes |
| Features | Multi-touch clickpad, gesture function, spill-resistant, DuraKeys | Volume control, spill-resistant, multi-touch clickpad, ClickPad with gesture support |
| CONNECTIONS & EXPANSIONS | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Interfaces | 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery) USB 3.2 Gen 1 (charging) USB 3.2 Gen 1 HDMI Headphone/microphone combo jack |
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery) USB 3.2 Gen 1 (charging) USB 3.2 Gen 1 (powered) HDMI LAN Headphone/microphone combo jack USB 3.2 Gen 1 |
|---|---|---|
| Memory Card Reader | - | Yes (microSD, microSDHC, microSDXC) |
| SOFTWARE | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Operating System (OS) | No operating system | Windows 10 Pro 64-bit Edition National Academic - English |
|---|---|---|
| Software Included | - | HP Support Assistant, HP Power Manager, HP Hotkey Support, Windows Defender, HP Secure Erase, HP Wireless Button Driver, HP Client Catalogue (free download), HP Image Assistant (free download), HP PC Hardware Diagnostics, HP Noise Cancellation, HP LAN-WLAN Protection, HP Notifications, HP Connection Optimizer, HP Privacy Settings, HP QuickDrop, HP Manageability Integration Kit Gen4 (free dowload), HP Client Management Script Library (free download), Ivanti Management Suite (free download), HP BIOSphere Gen6, myHP, Xerox DocuShare (30 days trial), HP Smart Support (free download) |
| MISCELLANEOUS | HP EliteBook 840 G9 Notebook | HP ProBook 455 G8 Notebook |
|---|
| Included Accessories | - | HP 45 Watt Smart nPFC AC Adapter |
|---|---|---|
| Integrated Options | Accelerometer, magnetometer, gyro sensor, hall sensor, 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 | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately), chassis intrusion sensor | Security lock slot (cable lock sold separately) |
| Features | BIOS Absolute Persistence, HP Automatic Drive Lock, HP DriveLock, HP Fast Charge, BIOS Update via Network, Secured-core PC capable | USB port control, Automatic DriveLock, HP DriveLock, BIOS Update via Network |
| Compliant Standards | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FIPS 140-2 Level 2, FCC, RoHS, WEEE, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FCC, RoHS, WEEE, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP |
| ENERGY STAR Certified | Yes | 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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