In depth comparison and review of HP EliteBook 840 G9 Notebook and HP ProBook 645 G1 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.
| DESIGN AND DIMENSIONS | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31.56 cm x 22.405 cm x 1.92 cm | 34 cm x 23.7 cm x 2.9 cm |
| Weight | 1.36 kg | 2 kg |
| Case Material | - | Polycarbonate ABS |
| DISPLAY | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Screen Size (Type) | 14" | 14" |
|---|---|---|
| LCD Backlight Technology | WLED backlight | LED backlight |
| Screen Resolution | 1920 x 1200 (WUXGA) | 1600 x 900 (HD+) |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Features | WUXGA ultra wide-viewing angle (UWVA) anti-glare eDP | HD+ anti-glare |
| PROCESSOR | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| CPU | Intel Core i5 (12th Gen) 1235U / 1.3 GHz | AMD A4 4300M / 2.5 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 3 GHz |
| Number of Cores | 10-core | Dual-Core |
| Cache | L3 - 12 MB | 1 MB |
| 64-bit Computing | - | Yes |
| Chipset | - | AMD A76M FCH |
| Features | Intel Turbo Boost Technology | - |
| MEMORY | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| RAM | 0 GB | 4 GB |
|---|---|---|
| Max RAM Supported | 64 GB | 16 GB |
| RAM Type | DDR5 SDRAM | DDR3L SDRAM |
| Speed | - | 1600 MHz / PC3-12800 |
| Rated Speed | - | 1600 MHz |
| Form Factor | SO-DIMM 262-pin | SO-DIMM 204-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 2 | 1 |
| STORAGE | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Main Storage Size (HDD/SSD) | - | 128 GB SSD SATA 6Gb/s |
|---|---|---|
| Optical Drive | - | DVD±RW (±R DL) / DVD-RAM fixed - tray |
| AUDIO & VIDEO | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | AMD Radeon HD 7420G |
|---|---|---|
| Video System Features | Functions as Intel UHD graphics (for single-channel memory) | - |
| Camera | - | Yes |
| Video Resolutions | - | 1280 x 720 |
| Sound | Dual stereo speakers, dual array microphone | Stereo speakers, microphone |
| Codec | Realtek ALC3315 | IDT 92HD91 |
| Compliant Standards | - | DTS SOUND+ |
| Audio Features | Bang & Olufsen Audio, discrete amplifiers | - |
| COMMUNICATIONS | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Wireless | - | 802.11a/b/g/n, Bluetooth 4.0 |
|---|---|---|
| Network Interface | - | Gigabit Ethernet |
| Bluetooth Class | - | Class 2 |
| Compliant Standards | - | IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.11, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, Wi-Fi CERTIFIED, IEEE 802.3az |
| Remote Management Protocol | - | SNMP 2 |
| BATTERY | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Technology | 3-cell lithium polymer | 6-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | - | 55 Wh |
| AC ADAPTER | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Input | - | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 65 Watt, 18.5 V |
| INPUT | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Type | Keyboard, ClickPad | Keyboard, touchpad |
|---|---|---|
| Keyboard Name | HP Premium | - |
| Features | Multi-touch clickpad, gesture function, spill-resistant, DuraKeys | Scrolling wheels (2-way), spill-resistant, touchpad with gesture support |
| CONNECTIONS & EXPANSIONS | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Expansion Bays | - | 1 x Upgrade Bay |
|---|---|---|
| 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 |
4 x USB 3.0 DisplayPort VGA Microphone input Headphone output LAN Dock |
| Memory Card Reader | - | Yes (SD Card, SDHC Card, SDXC Card) |
| SOFTWARE | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Operating System (OS) | No operating system | Microsoft Windows 7 Professional 64-bit Edition (available through downgrade rights from Windows 8 Pro) + Windows 8 Pro Licence - English / Finnish / Swedish |
|---|---|---|
| Software Included | - | Cyberlink PowerDVD, CyberLink Power2Go, Adobe Flash Player, HP Recovery Disc Creator, Skype, HP Recovery Manager, HP Support Assistant, HP Connection Manager, HP ePrint, CyberLink YouCam BE, HP Exclusive, HP PageLift |
| MISCELLANEOUS | HP EliteBook 840 G9 Notebook | HP ProBook 645 G1 Notebook |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | - | Power 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 1.2) Security Chip, fingerprint reader, smart card reader |
| Security Slot Type | Kensington nano security slot | Kensington 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 | Power-on password, charging via USB, HP 3D DriveGuard, HP SpareKey, HP File Sanitizer, HP BIOS Protection, SecureBoot |
| 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 | ACPI, CSA, UL, VCCI, BSMI, GOST, SABS, CCC, FCC, RoHS, WEEE, A-Tick, ICES, KC |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 0 °C | 5 °C |
| Humidity Range Operating | 10 - 90% (non-condensing) | 10 - 90% (non-condensing) |
| Manufacturer Warranty | - | Limited warranty - 1 year |
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