In depth comparison and review of HP EliteBook 820 G4 and HP EliteBook 845 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 EliteBook 820 G4 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
portable lightweight design
fast ssd storage
good security features
decent battery life
average display quality
limited graphics performance
noisy under load
higher price point
Advantages and disadvantages of HP EliteBook 845 G9 Notebook based on its technical characteristics, features, user experience, expert reviews and price level.
powerful amd processor
lightweight and portable
high-resolution display
robust security features
fast charging support
expensive price point
average battery life
limited port selection
no dedicated gpu
| DESIGN AND DIMENSIONS | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31 cm x 21.89 cm x 1.89 cm | 31.56 cm x 22.4 cm x 1.92 cm |
| Weight | 1.26 kg | 1.4 kg |
| DISPLAY | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Screen Size (Type) | 12.5" | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | WLED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | - | 250 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | - | WUXGA ultra wide-viewing angle (UWVA) anti-glare eDP |
| PROCESSOR | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| CPU | Intel Core i5 (7th Gen) 7300U / 2.6 GHz | AMD Ryzen 7 6800U / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 3.5 GHz | 4.7 GHz |
| Number of Cores | Dual-Core | 8-core |
| Cache | 3 MB | L3 - 16 MB |
| Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache | - |
| MEMORY | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| RAM | 8 GB | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 32 GB | 64 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 2133 MHz | 4800 MHz |
| Rated Speed | - | 4800 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 262-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | - | 1 |
| STORAGE | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe), triple-level cell (TLC), HP Value |
|---|
| AUDIO & VIDEO | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 620 | AMD Radeon Graphics |
|---|---|---|
| Camera | Yes - 720p | Yes |
| Resolution | - | 5 Megapixel |
| Camera Features | - | Privacy shutter, IR camera, HP Auto Frame |
| Sound | Stereo speakers, two microphones | Dual stereo speakers, dual array microphone |
| Codec | CX7501 | Realtek ALC3315 |
| Audio Features | Noise-cancellation technology, Bang & Olufsen Audio, HP Clear Sound Amp | Bang & Olufsen Audio |
| COMMUNICATIONS | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Wireless | Bluetooth | 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 |
|---|---|---|
| Wireless Controller | - | Qualcomm WCN6856 Wi-Fi 6E - M.2 2230 |
| Network Interface | Gigabit Ethernet | - |
| Bluetooth Class | - | Class 1.5 |
| Compliant Standards | - | Wi-Fi CERTIFIED |
| Features | - | Miracast, dual stream (2x2), MU-MIMO |
| BATTERY | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Technology | - | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | - | 51 Wh |
| Battery Life | - | Up to 18.75 hours |
| AC ADAPTER | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Input | - | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 65 Watt, 5 / 9 / 12 / 15 / 20 V, 8 A |
| INPUT | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Type | Keyboard, touchpad | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium |
| Keyboard Backlight | - | Yes |
| Features | Touchpad with gesture support | Precision touchpad, multi-gesture clickpad, spill-resistant |
| CONNECTIONS & EXPANSIONS | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (charging) USB-C DisplayPort VGA LAN Dock Headphone/microphone combo jack |
2 x USB4 (supports DisplayPort 1.4 Alt Mode) (Power Delivery) USB 3.2 Gen 1 (charging) USB 3.2 Gen 1 HDMI Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | - |
| SOFTWARE | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | HP Support Assistant, HP Power Manager, HP Hotkey Support, HP Secure Erase, HP Drive Packs (free download), HP Client Catalogue (free download), HP PC Hardware Diagnostics, HP Notifications, HP Connection Optimizer, HP Sure Click, HP Privacy Settings, HP Sure Sense, HP Sure Admin, HP QuickDrop, HP Client Management Script Library (free download), HP BIOSphere Gen6, HP Wake on WLAN, myHP, HP Image Assistant Gen5 (free download), HP Client Security Manager Gen7, HP SureStart Gen7, HP Easy Clean, HP Quick Touch, HP Sure Recover Gen5, HP Sure Run Gen5, HP Manageability Integration Kit Gen4 (free download) |
| MISCELLANEOUS | HP EliteBook 820 G4 | HP EliteBook 845 G9 Notebook |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | Power adapter | HP 65 Watt nPFC Smart USB-C AC Adapter |
| Integrated Options | - | Hall sensor, IR thermal sensor, HP Tamper Lock |
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip, smart card reader |
| 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, BIOS Absolute Persistence, HP DriveLock, HP Fast Charge, BIOS Update via Network |
| Compliant Standards | ISO 9001, ISO 14001, ISO 27001 | CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FIPS 140-2 Level 2, FCC, A-Tick, ICES, Common Criteria EAL4+, KC, CIT, low halogen, ICCP, RED, BNCI |
| ENERGY STAR Certified | - | Yes |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 0 °C |
| Humidity Range Operating | - | 10 - 90% (non-condensing) |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Limited warranty - parts and labour - 1 year Limited warranty - battery - 1 year |
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