HP
HP ProBook 645 G4 14" Ryzen 5 PRO 2500U 16GB 512GB Silver
A 14-inch business laptop with a Ryzen 5 PRO 2500U quad-core processor, 16 GB DDR4 memory, 512 GB SSD and integrated Radeon Vega 8 graphics running Windows 11 Pro
- ColorSilver
- Operating SystemWindows 11 Pro
- CPU TypeAMD Ryzen 5 PRO
- Core NameAMD Ryzen 5 PRO 2500U
- Number of CoresQuad-core Processor
- Screen Size14.0"
- Quad-core Ryzen 5 PRO 2500U boosts to 3.6 GHz for responsive multitasking
- 16 GB DDR4-2400 memory keeps many apps open without slowdown
- 512 GB SSD provides fast boot and ample file storage
- 14" anti-glare HD screen reduces reflections in bright rooms
- Windows 11 Pro with Wi-Fi 802.11 and Bluetooth 4.2 connects to peripherals and networks
Ready for office work
The HP ProBook 645 G4 is a 14-inch laptop built around a Ryzen 5 PRO 2500U quad-core processor running at a 2 GHz base frequency with a 3.6 GHz boost. It ships with 16 GB of DDR4-2400 memory and a 512 GB SSD, running Windows 11 Pro out of the box. The integrated Radeon Vega 8 graphics share system memory for everyday visual tasks.
Stepping up from limited memory or hard drives
This configuration replaces machines constrained by 8 GB of RAM or mechanical storage, delivering a noticeable jump in multitasking headroom and boot speed. The upgrade is worth it when your workflow keeps multiple browser tabs, office suites and background services open simultaneously. Buyers who need discrete graphics performance for rendering or gaming will not find it here.
HD panel and single-stream wireless set practical
The 1366 x 768 anti-glare display covers 45% NTSC at 220 cd/m², limiting colour-critical work and side-by-side window clarity. Wireless-AC 3168 provides 1x1 802.11ac connectivity with Bluetooth 4.2, so throughput peaks at single-stream rates. Users needing higher colour fidelity or multi-antenna Wi-Fi should plan accordingly.
Highlights
- Quad-core Ryzen 5 PRO 2500U boosts to 3.6 GHz for responsive multitasking
- 16 GB DDR4-2400 memory keeps many apps open without slowdown
- 512 GB SSD provides fast boot and ample file storage
- 14" anti-glare HD screen reduces reflections in bright rooms
- Windows 11 Pro with Wi-Fi 802.11 and Bluetooth 4.2 connects to peripherals and networks
Specifications
| Brand | HP |
|---|---|
| Model | ProBook 645 G4 |
| Part Number | 5KN40PC-I020-RB- |
| Color | Silver |
| Operating System | Windows 11 Pro |
| CPU Type | AMD Ryzen 5 PRO |
| Core Name | AMD Ryzen 5 PRO 2500U |
| Number of Cores | Quad-core Processor |
| Screen Size | 14.0" |
| Touchscreen | No |
| Resolution | 1366 x 768 |
| GPU/VPU | AMD Radeon Vega 8 |
| Video Memory | Shared system memory |
| Graphic Type | Integrated Graphics |
| SSD | 512 GB |
| HDD | No |
| Memory | 16GB |
| Memory Speed | DDR4 2400 |
| Memory Spec | 16 |
| Optical Drive Type | No |
| LAN | 10/100/1000Mbps |
| WLAN | 802.11ac Wireless LAN |
| Bluetooth | Bluetooth 4.2 |
| USB | 1 x USB 3.1 Type-C (Power delivery, DisplayPort 1.4) 1 x USB 3.1 Gen 1 (charging) 2 x USB 3.1 Gen 1 1 x RJ-45 1 x AC power |
| Video Port | 1 x HDMI 1.4 1 x VGA |
| Ethernet | 10/100/1000Mbps |
| Audio Ports | 1 x Headphone/microphone combo |
| Speaker | 2 x Integrated stereo speakers |
| Touchpad | Multi Touch |
| Keyboard | ClickPad, Spill-resistant with drain |
| Webcam | 720p HD |
| Type | Mainstream |
| Battery | HP Long Life 3-cell, 48 Wh Li-ion |
| Weight | 3.8 |
Questions about this item
What size is the 14.0" display on the ProBook 645 G4?
The screen measures 14.0 inches diagonally with a 1366 x 768 HD resolution on an anti-glare SVA panel.
How do I install the single DDR4-2400 module in this laptop?
Power off, remove the base cover screws, locate the SO-DIMM slot, insert the 16 GB stick at an angle until it clicks, then reassemble.
When should I replace the 512 GB SSD in this ProBook 645 G4?
Replace the drive if SMART diagnostics report reallocated sectors, sustained write speeds drop sharply, or Windows 11 Pro shows frequent disk errors.
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