| Processor | HP EliteBook 840 G3 W4S30UC | |
| Processor model | i5-6300U | |
| Processor socket | LGA 1356 (Socket B2) | |
| Processor threads | 4 | |
| Processor cores | 2 | |
| Processor codename | Skylake | |
| Processor family | 6th gen Intel Core i5 | |
| Processor frequency | 2.4 GHz | |
| Processor boost frequency | 3 GHz | |
| Processor boost cache | 3 MB | |
| Thermal Design Power (TDP) | 15 W | |
| Processor lithography | 14 nm | |
| Software | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Operating System | Windows 10 Pro | |
| Display & Graphics | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Display diagonal | 14 inch | |
| Display resolution | 2560 x 1440 pixels | |
| HD type | Quad HD | |
| Discrete graphics adapter | No | |
| Discrete graphics adapter model | Not available | |
| Graphics card | Intel HD Graphics 520 | |
| On-Board graphics adapter model | Intel HD Graphics 520 | |
| Graphics adapter memory | 1.74 GB | |
| Graphics card adapter max frequency: | 1000 MHz | |
| Graphics graphics adapter base frequency | 300 MHz | |
| Memory | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Internal memory | 8 GB | |
| Storage | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Storage | 128 GB SSD | |
| Optical drive type | No | |
| Network & Communication | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Ethernet LAN | Yes | |
| WiFi | Yes | |
| WiFi Standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) | |
| Interfaces/Ports | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Ethernet LAN | 1 | |
| Input Devices | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Keyboard Device | Touchpad | |
| Audio | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Built-in Devices | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Front Camera | Yes | |
| Power | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Design | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Product type | Notebook | |
| Form Factor | Clamshell | |
| Depth | 237 mm | |
| Width | 338 mm | |
| Height | 18.9 mm | |
| Weight | 1.48 kg | |
| Battery Information | HP EliteBook 840 G3 W4S30UC | other notebooks |
| Battery type | Lithium Polymer (LiPo) | |
| Battery cells | 3 | |
