| Processor | HP ProBook 640 G4 5YH04U8R | |
| Processor manufacturer | Intel | |
| Processor model | i5-8250U | |
| Processor socket | BGA 1356 | |
| Processor threads | 8 | |
| Processor cores | 4 | |
| Processor codename | Kaby Lake R | |
| Processor family | Intel Core i5 | |
| Processor frequency | 1.6 GHz | |
| Processor boost frequency | 3.4 GHz | |
| Processor cache | 6 MB | |
| Thermal Design Power (TDP) | 15 W | |
| Display & Graphics | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Display diagonal | 14 inch | |
| Dual-screen | No | |
| LED backlight | Yes | |
| Memory | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Internal memory | 8 GB | |
| Maximum internal memory | 32 GB | |
| Memory clock speed | 2400 MHz | |
| Memory layout (slots x size) | 1 x 8 GB | |
| Memory form factor | SO-DIMM | |
| Memory slots | 2x SO-DIMM | |
| Internal memory type | DDR4-SDRAM | |
| Storage | HP ProBook 640 G4 5YH04U8R | other notebooks |
| HDD capacity | 500 GB | |
| Storage media | HDD | |
| Number of HDDs installed | 1 | |
| Total HDDs capacity | 500 GB | |
| Total storage capacity | 500 GB | |
| Optical drive type | No | |
| Card reader integrated | Yes | |
| Compatible memory cards | MicroSD (TransFlash) | |
| Network & Communication | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Bluetooth | Yes | |
| 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) | |
| Interfaces/Ports | HP ProBook 640 G4 5YH04U8R | other notebooks |
| HDMI version | 1.4 | |
| HDMI ports quantity | 1 | |
| Combo headphone/mic port | Yes | |
| VGA (D-Sub) ports | 1 | |
| Docking connector | Yes | |
| Ethernet LAN (RJ-45) ports | 1 | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A | 3 | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C | 1 | |
| Input Devices | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Keyboard backlit | Yes | |
| Numeric keypad | No | |
| Pointing device | Clickpad | |
| Spill resistant keyboard | Yes | |
| Audio | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Built-in microphone | Yes | |
| Number of speakers | 2 | |
| Number of microphones | 2 | |
| Built-in Devices | HP ProBook 640 G4 5YH04U8R | other notebooks |
| HP speaker type | HP Dual Speakers | |
| Front camera | Yes | |
| Security | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Cable lock slot | Yes | |
| Design | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Product type | Notebook | |
| Form factor | Clamshell | |
| Product colour | Silver | |
| Market positioning | Business | |
| Depth | 240 mm | |
| Width | 340 mm | |
| Height | 20.9 mm | |
| Weight | 1.73 kg | |
| Battery Information | HP ProBook 640 G4 5YH04U8R | other notebooks |
| Battery capacity | 48 Wh | |
| Battery type | Lithium-Ion (Li-Ion) | |
| Number of battery cells | 3 | |
