| Processor | HP ZBook 15 G3 Z3T56US | |
| Processor manufacturer | Intel | |
| Processor model | i7-6820HQ | |
| Processor series | Intel Core i7-6800 Mobile Series | |
| Processor socket | BGA 1440 | |
| Processor threads | 8 | |
| Processor cores | 4 | |
| Processor codename | Skylake | |
| Processor family | Intel Core i7 | |
| Processor frequency | 2.7 GHz | |
| Motherboard chipset | Intel CM236 | |
| Processor boost frequency | 3.6 GHz | |
| Processor cache | 8 MB | |
| Thermal Design Power (TDP) | 45 W | |
| Display & Graphics | HP ZBook 15 G3 Z3T56US | other notebooks |
| Display diagonal | 15.6 inch | |
| Dual-screen | No | |
| 3D | No | |
| LED backlight | Yes | |
| Memory | HP ZBook 15 G3 Z3T56US | other notebooks |
| Internal memory | 32 GB | |
| Maximum internal memory | 64 GB | |
| Memory clock speed | 2133 MHz | |
| Memory form factor | SO-DIMM | |
| Memory slots | 4x SO-DIMM | |
| Internal memory type | DDR4-SDRAM | |
| Storage | HP ZBook 15 G3 Z3T56US | 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 ZBook 15 G3 Z3T56US | other notebooks |
| Bluetooth | Yes | |
| Ethernet LAN | Yes | |
| Wi-Fi | Yes | |
| Wi-Fi standards | 802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n) | |
| Input Devices | HP ZBook 15 G3 Z3T56US | other notebooks |
| Keyboard backlit | Yes | |
| Numeric keypad | Yes | |
| Pointing device | Touchpad | |
| Spill resistant keyboard | Yes | |
| Windows keys | Yes | |
| Audio | HP ZBook 15 G3 Z3T56US | other notebooks |
| Audio system | Bang & Olufsen | |
| Built-in microphone | Yes | |
| Number of speakers | 2 | |
| Built-in Devices | HP ZBook 15 G3 Z3T56US | other notebooks |
| HP speaker type | HP Dual Speakers | |
| Front camera | Yes | |
| Power | HP ZBook 15 G3 Z3T56US | other notebooks |
| AC adapter power | 150 W | |
| Design | HP ZBook 15 G3 Z3T56US | other notebooks |
| Brand | HP | |
| Family | ZBook | |
| Series | 15 | |
| Model name | 15 G3 | |
| Part Number | Z3T56US | |
| Product type | Mobile workstation | |
| Form factor | Clamshell | |
| Product colour | Black | |
| EAN/UPC code | 0190780800768, 190780800768 | |
| Release Date | 07 June 2019 | |
| Battery Information | HP ZBook 15 G3 Z3T56US | other notebooks |
| Battery type | Lithium Polymer (LiPo) | |
