| Processor | HP ProBook 645 G4 3UP61EA | |
| Processor model | 2700U | |
| Processor threads | 8 | |
| Processor cores | 4 | |
| Processor family | AMD Ryzen 7 | |
| Processor frequency | 2.2 GHz | |
| Processor boost frequency | 3.8 GHz | |
| Processor cache | 4 MB | |
| Software | HP ProBook 645 G4 3UP61EA | other notebooks |
| Operating system installed | Windows 10 Pro | |
| Operating system architecture | 64-bit | |
| Display & Graphics | HP ProBook 645 G4 3UP61EA | other notebooks |
| Panel type | IPS | |
| Aspect ratio | 16:9 | |
| Display diagonal | 14 inch | |
| Display resolution | 1920 x 1080 pixels | |
| HD type | Full HD | |
| LED backlight | Yes | |
| Touchscreen | No | |
| Discrete graphics adapter | No | |
| Discrete graphics adapter model | Not available | |
| On-board graphics adapter | Yes | |
| On-board graphics adapter family | AMD Radeon Vega Graphics | |
| On-board graphics adapter model | AMD Radeon Vega | |
| Memory | HP ProBook 645 G4 3UP61EA | other notebooks |
| Internal memory | 8 GB | |
| 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 645 G4 3UP61EA | other notebooks |
| SSD capacity | 512 GB | |
| Storage media | SSD | |
| Number of SSDs installed | 1 | |
| Total SSDs capacity | 512 GB | |
| Total storage capacity | 512 GB | |
| Card reader integrated | Yes | |
| Compatible memory cards | SD | |
| Network & Communication | HP ProBook 645 G4 3UP61EA | other notebooks |
| Bluetooth | Yes | |
| Wi-Fi | Wi-Fi 5 (802.11ac) | |
| Wi-Fi standards | 802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n) | |
| Interfaces/Ports | HP ProBook 645 G4 3UP61EA | other notebooks |
| HDMI ports quantity | 1 | |
| Charging port type | DC-in jack | |
| 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 645 G4 3UP61EA | other notebooks |
| Numeric keypad | No | |
| Pointing device | Clickpad | |
| Audio | HP ProBook 645 G4 3UP61EA | other notebooks |
| Number of microphones | 1 | |
| Built-in Devices | HP ProBook 645 G4 3UP61EA | other notebooks |
| Front camera | Yes | |
| Front camera HD type | HD | |
| Front camera signal format | 720p | |
| Power | HP ProBook 645 G4 3UP61EA | other notebooks |
| AC adapter power | 45 W | |
| Design | HP ProBook 645 G4 3UP61EA | other notebooks |
| Brand | HP | |
| Family | ProBook | |
| Series | 600 | |
| Model name | 645 G4 | |
| Part Number | 3UP61EA | |
| Product type | Notebook | |
| Form factor | Clamshell | |
| Product colour | Silver | |
| EAN/UPC code | 0192545247061, 0192545921275 | |
| Height | 20.9 mm | |
| Release Date | 2018-06-01 | |
| Battery Information | HP ProBook 645 G4 3UP61EA | other notebooks |
| Battery capacity | 48 Wh | |
| Battery type | Lithium-Ion (Li-Ion) | |
| Number of battery cells | 3 | |
