In depth comparison and review of HP EliteBook 820 G1 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 G1 based on its technical characteristics, features, user experience, expert reviews and price level.
sturdy build quality
compact and portable
good keyboard feel
solid security features
decent processor performance
average display quality
limited storage capacity
no high-end graphics
older model limitations
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 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31 cm x 21.53 cm x 2.1 cm | 31.56 cm x 22.4 cm x 1.92 cm |
| Weight | 1.33 kg | 1.4 kg |
| Case Material | Aluminum, magnesium alloy | - |
| DISPLAY | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Screen Size (Type) | 12.5" | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | WLED backlight |
| Screen Resolution | 1366 x 768 (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 G1 | HP EliteBook 845 G9 Notebook |
|---|
| CPU | Intel Core i5 (4th Gen) 4300U / 1.9 GHz | AMD Ryzen 7 6800U / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 2.9 GHz | 4.7 GHz |
| Number of Cores | Dual-Core | 8-core |
| Cache | 3 MB | L3 - 16 MB |
| 64-bit Computing | Yes | - |
| Platform Technology | Intel vPro Platform | - |
| Features | Enhanced SpeedStep technology, Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache | - |
| MEMORY | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| RAM | 4 GB | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 16 GB | 64 GB |
| RAM Type | DDR3L SDRAM | DDR5 SDRAM |
| Speed | 1600 MHz / PC3L-12800 | 4800 MHz |
| Rated Speed | 1600 MHz | 4800 MHz |
| Form Factor | SO-DIMM 204-pin | SO-DIMM 262-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | - | 1 |
| STORAGE | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Main Storage Size (HDD/SSD) | 500 GB HDD SATA 3Gb/s | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe), triple-level cell (TLC), HP Value |
|---|
| AUDIO & VIDEO | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4400 | AMD Radeon Graphics |
|---|---|---|
| Camera | Yes | Yes |
| Resolution | - | 5 Megapixel |
| Camera Features | - | Privacy shutter, IR camera, HP Auto Frame |
| Sound | Stereo speakers, stereo microphone | Dual stereo speakers, dual array microphone |
| Codec | IDT 92HD91 | Realtek ALC3315 |
| Compliant Standards | High Definition Audio, DTS Studio Sound, DTS SOUND+ | - |
| Audio Features | - | Bang & Olufsen Audio |
| COMMUNICATIONS | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Wireless | 802.11a/b/g/n, Bluetooth 4.0 | 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 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Technology | Lithium polymer | 3-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | - | 51 Wh |
| Battery Life | - | Up to 18.75 hours |
| AC ADAPTER | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 115/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt | 65 Watt, 5 / 9 / 12 / 15 / 20 V, 8 A |
| INPUT | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Type | Keyboard, touchpad, pointing stick | Keyboard, ClickPad |
|---|---|---|
| Keyboard Name | - | HP Premium |
| Keyboard Backlight | Yes | Yes |
| Features | Volume control, spill-resistant | Precision touchpad, multi-gesture clickpad, spill-resistant |
| CONNECTIONS & EXPANSIONS | HP EliteBook 820 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Interfaces | 3 x USB 3.0 DisplayPort VGA Headphone/microphone combo jack LAN Dock |
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 G1 | HP EliteBook 845 G9 Notebook |
|---|
| Operating System (OS) | Windows 10 Home 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 G1 | 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 1.2) 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 | Power-on password, charging via USB, HP Disk Sanitizer, HP 3D DriveGuard, HP DuraFinish, HP DuraKeys, HP SpareKey, HP File Sanitizer, HP DisplaySafe, HP BIOS Protection, BIOS Absolute Persistence, HP SureStart, SecureBoot, HP Automatic Drive Lock, HP DriveLock, Hybrid Boot, Master Record Security, Measured Boot, Pre-Boot Security, HP Roaming Alert, Intel My WiFi Technology | 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 | Yes |
| EPEAT Compliant | EPEAT Gold | - |
| 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 - 2 years - pick-up and return | Limited warranty - parts and labour - 1 year Limited warranty - battery - 1 year |
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