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Silver 14-inch HP ProBook 645 G4 laptop with minor scratches and dents

HP

HP ProBook 645 G4 14" Ryzen 5 PRO 2500U 16GB 256GB laptop

SKU CH-AJJG-M6SQY

A 14-inch business laptop with a Ryzen 5 PRO 2500U quad-core processor, 16GB DDR4 memory, a 256GB NVMe SSD and Windows 11 Pro

  • Screen size14.0 in (35.6 cm)
  • ProcessorAMD Ryzen 5 PRO
  • Graphics processorAMD Radeon Vega 8
  • Memory size16 GB
  • SSD storage256 GB
  • Display resolution1366 × 768
  • 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
  • 256 GB PCIe NVMe M.2 SSD loads Windows 11 Pro and files quickly
  • 14" anti-glare HD display reduces reflections in bright rooms
  • Realtek 802.11ac 2x2 Wi-Fi and Bluetooth 4.2 give stable wireless connections

HP ProBook 645 G4 14" Business Laptop

The HP ProBook 645 G4 is a 14-inch laptop built for everyday office tasks. It runs on an AMD Ryzen 5 PRO 2500U quad-core processor with a 2.0 GHz base clock and 3.6 GHz max boost. The system includes 16GB DDR4-2400 RAM and a 256GB PCIe NVMe M.2 SSD. Windows 11 Pro comes pre-installed for professional use.

Thermals and Power Profile

The integrated AMD Radeon Vega 8 graphics share system memory, keeping power draw modest during typical workloads. The 1366 x 768 HD anti-glare display operates at 220 cd/m² brightness with 45% sRGB coverage. Fan activity scales with CPU load but remains unobtrusive for standard document editing and web browsing.

Connectivity and Software Ready

Realtek 802.11 a/b/g/n/ac (2x2) Wi-Fi and Bluetooth 4.2 provide wireless connectivity for peripherals and networks. Windows 11 Pro enables domain join, BitLocker encryption and remote desktop features out of the box. Buyers who need a touchscreen, dedicated graphics or higher colour accuracy should consider other models.

How it compares

Measured against everything we stock in Standard Laptops & Notebooks, at today’s prices. Recalculated every night.

Price $172.99
Cheaper than about 94% of the 32,549 comparable items (median $599.99).
Screen size 14.0 in (35.6 cm)
Lower than about 60% of the 32,085 comparable items (median 15.2 in).
Memory size 16 GB
Typical for this category: the median of 30,127 items is 16 GB.

New to this? Buying a laptop with crypto, start to finish — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameHP
Model nameProBook 645 G4
Part number2GS89AV-I010-RB-
Product colorSilver
Product typeMainstream
Processor
ProcessorAMD Ryzen 5 PRO
CPU coresQuad-core Processor
Processor codenameAMD Ryzen 5 PRO 2500U
Memory
Memory size16 GB
RAM type and speedDDR4 2400
Memory configuration16
Storage
SSD storage256 GB
Hard driveNo
Optical driveNo
Display
Screen size14.0 in (35.6 cm)
Display resolution1366 × 768
Touch inputNo
Graphics
Graphics processorAMD Radeon Vega 8
Video RAMShared system memory
Graphics typeIntegrated Graphics
Audio & video
SpeakersDual speakers
Web camera720p HD webcam
Connectivity
LAN connectionNo
Wi-Fi802.11ac Wireless LAN
Bluetooth support4.2
Wired networkNo
Ports & slots
USB ports1 x USB 3.1 Type-C (charging)
3 x USB 3.1 Gen 1 (1 charging)
1 x AC power
Video outputs1 x VGA
1 x HDMI 1.4
Audio jacks1 x headphone/microphone combo
Power
Battery pack3-cell, 48 Wh Li-ion
Software
Operating systemWindows 11 Pro
More details
Pointing deviceMulti Touch
KeyboardHP Premium Keyboard, spill-resistant

Questions about this item

How do I install the M.2 NVMe SSD in this ProBook 645 G4, and which step do people get wrong?

Remove the bottom cover, insert the 256 GB PCIe NVMe M.2 drive into the slot at an angle, then press it down and secure the single retention screw; the step often missed is pressing the drive fully flat before tightening the screw, which leaves the connector unseated.

What maintenance or replacement will the 16 GB DDR4 memory need later?

The 16 GB DDR4-2400 is soldered to the board, so it cannot be upgraded or replaced; the only memory-related maintenance is keeping the system firmware current to ensure proper memory training and stability.

What limit shows up first on the Radeon Vega 8 graphics under sustained load?

The shared system memory and 220 cd/m² panel constrain sustained performance; the integrated Vega 8 uses main RAM for video memory, so heavy 3D workloads hit bandwidth limits before the GPU core reaches its maximum 3.6 GHz boost clock.

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