| Processor | HP EliteBook 840 G4 2TL66ES | |
| Processor manufacturer | Intel | |
| Processor model | i7-7500U | |
| Processor socket | BGA 1356 | |
| Processor threads | 4 | |
| Processor cores | 2 | |
| Processor codename | Kaby Lake | |
| Processor family | 7th gen Intel Core i7 | |
| Processor frequency | 2.7 GHz | |
| Processor boost frequency | 3.5 GHz | |
| Processor cache | 4 MB | |
| Thermal Design Power (TDP) | 15 W | |
| Display & Graphics | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Display diagonal | 14 inch | |
| Dual-screen | No | |
| LED backlight | Yes | |
| Discrete graphics adapter | No | |
| Discrete graphics adapter model | Not available | |
| Maximum on-board graphics adapter memory | 32 GB | |
| On-board graphics adapter | Yes | |
| On-board graphics adapter base frequency | 300 MHz | |
| On-board graphics adapter DirectX version | 12.0 | |
| On-board graphics adapter dynamic frequency (max) | 1050 MHz | |
| On-board graphics adapter family | Intel HD Graphics | |
| On-board graphics adapter model | Intel HD Graphics 620 | |
| On-board graphics adapter OpenGL | 4.4 | |
| Memory | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Internal memory | 8 GB | |
| Maximum internal memory | 32 GB | |
| Memory clock speed | 2133 MHz | |
| Memory form factor | SO-DIMM | |
| Memory slots | 2x SO-DIMM | |
| Internal memory type | DDR4-SDRAM | |
| Storage | HP EliteBook 840 G4 2TL66ES | other notebooks |
| SSD capacity | 256 GB | |
| Storage media | SSD | |
| Number of SSDs installed | 1 | |
| Total SSDs capacity | 256 GB | |
| Total storage capacity | 256 GB | |
| Optical drive type | No | |
| Card reader integrated | Yes | |
| Compatible memory cards | SD | |
| Network & Communication | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Ethernet LAN | Yes | |
| Wi-Fi | Yes | |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) | |
| Input Devices | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Keyboard backlit | Yes | |
| Numeric keypad | No | |
| Pointing device | Touchpad | |
| Windows keys | Yes | |
| Audio | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Audio system | Bang & Olufsen | |
| Built-in microphone | Yes | |
| Number of speakers | 2 | |
| Number of microphones | 2 | |
| Built-in Devices | HP EliteBook 840 G4 2TL66ES | other notebooks |
| HP speaker type | HP Dual Speakers | |
| Front camera | Yes | |
| Security | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Password protection | Yes | |
| Design | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Brand | HP | |
| Family | EliteBook | |
| Series | 800 | |
| Model name | 840 G4 | |
| Part Number | 2TL66ES | |
| Product type | Notebook | |
| Form factor | Clamshell | |
| Product colour | Silver | |
| Release Date | 11 February 2019 | |
| Battery Information | HP EliteBook 840 G4 2TL66ES | other notebooks |
| Battery capacity | 51 Wh | |
| Battery type | Lithium-Ion (Li-Ion) | |
| Number of battery cells | 3 | |
