Side by side comparison and review of HP EliteBook 840 G4 Notebook and HP ProBook 455 G9 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.
Advantages and disadvantages of HP ProBook 455 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
robust aluminum design
powerful AMD processor
comfortable keyboard layout
fast charging support
good value for money
average display brightness
no thunderbolt support
limited color options
heavier than competitors
| DESIGN AND DIMENSIONS | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 33.8 cm x 23.7 cm x 1.89 cm | 35.94 cm x 23.39 cm x 1.99 cm |
| Weight | 1.48 kg | 1.74 kg |
| Case Material | Aluminum, magnesium alloy | - |
| Colour | - | Natural silver |
| DISPLAY | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Screen Size (Type) | 14" - TN | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | WLED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Pixel Density (ppi) | 157 | - |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | - |
| Image Brightness | 300 cd/m² | 250 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | Slim Design, Full HD standard-viewing angle (SVA) eDP anti-glare | Full HD ultra wide-viewing angle (UWVA) eDP anti-glare, narrow bezel bent |
| PROCESSOR | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| CPU | Intel Core i5 (7th Gen) 7200U / 2.5 GHz | AMD Ryzen 5 5625U / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 3.1 GHz | 4.3 GHz |
| Number of Cores | Dual-Core | 6-core |
| Cache | 3 MB | L3 - 16 MB |
| 64-bit Computing | Yes | - |
| Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache | - |
| MEMORY | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| RAM | 4 GB (1 x 4 GB) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | 32 GB | 32 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM - non-ECC |
| Speed | 2133 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 EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD PCIe - HP Z Turbo Drive | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 620 | AMD Radeon Graphics |
|---|---|---|
| Camera | Yes - 720p | Yes - HD |
| Camera Features | - | Privacy shutter, IR camera |
| Video Resolutions | - | 720p |
| Sound | Stereo speakers, two microphones | Stereo speakers, dual array microphone |
| Audio Features | Noise-cancellation technology, Bang & Olufsen Audio, HP Audio Boost | - |
| COMMUNICATIONS | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 8265 - PCI Express Mini Card (M.2) | Realtek RTL8852BE |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Intel I219-V | Realtek RTL8111HSH |
| Compliant Standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.1x, IEEE 802.3ae, IEEE 802.11i, Wi-Fi CERTIFIED, IEEE 802.3az | - |
| Remote Management Protocol | SNMP 2 | - |
| Features | Wake-on-LAN (WOL) | Miracast, dual stream (2x2) |
| BATTERY | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Technology | 3-cell lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 51 Wh | 42.75 Wh |
| Battery Life | Up to 15.25 hours | - |
| AC ADAPTER | HP EliteBook 840 G4 Notebook | HP ProBook 455 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 |
| INPUT | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Type | Keyboard, touchpad, pointing stick | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | HP Premium | HP Premium |
| Numeric Keypad | - | Yes |
| Keyboard Backlight | - | Yes |
| Features | Volume control, spill-resistant, gesture function, built-in numeric keypad | Spill-resistant, multi-touch clickpad, gesture function |
| CONNECTIONS & EXPANSIONS | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Slots | 1 x SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB 3.1 Gen 1 (charging) USB 3.1 Gen 1 USB-C DisplayPort VGA LAN Dock Headphone/microphone combo jack |
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) |
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | Yes (SD Card, SDXC Card) |
| SOFTWARE | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 11 Home - English |
|---|---|---|
| Software Included | Skype, LANDesk Management Suite, HP SoftPaq Download Manager, HP Recovery Manager, HP Support Assistant, Bing Toolbar, HP ePrint, HP Hotkey Support, HP Systems Software Manager, Password Manager, HP Client Security, HP Velocity, HP Secure Erase, HP BIOSphere, HP Client Catalog, HP BIOS Config Utility, HP Device Access Manager, HP 3D DriveGuard, HP Mobile Connect Pro, HP Image Assistant, HP JetAdvantage Connect, HP Workwise | 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) |
| MISCELLANEOUS | HP EliteBook 840 G4 Notebook | HP ProBook 455 G9 Notebook |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | HP 45 Watt Smart AC Adapter |
| Integrated Options | - | HP Tamper Lock |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, smart card reader | 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) |
| Features | HP 3D DriveGuard, HP DuraKeys, HP Automatic Drive Lock, HP DriveLock, Master Record Security, Power On Authentication, Pre-boot Authentication, HP Sure Start Gen 3 | 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 | ACPI, CSA, UL, VCCI, BSMI, SABS, SASO, CCC, FCC, RoHS, WEEE, ICES, KC, EAC, CIT, RCM | 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 |
| 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 - 3 years Limited warranty - battery - 3 years |
Limited warranty - parts and labour - 1 year |
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