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Black mid-tower desktop workstation with front panel vents and ports

HP

HP Z2 G4 Mid Tower i5-9500 16GB 500GB NVMe Quadro P4000 8GB Windows 11 Pro

SKU CH-KN0Z-6A94Q

A mid-tower workstation with a 6-core Intel Core i5-9500, 16GB DDR4 memory, 500GB NVMe SSD and NVIDIA Quadro P4000 8GB graphics for professional workloads

  • Screen sizeNo Screen
  • ProcessorIntel Core i5
  • RAM capacity16 GB DDR4
  • SSD storage500 GB pcie
  • GraphicsNVIDIA Quadro P4000
  • CPU modelIntel Core i5-9500
  • 6-core i5-9500 reaches 4.4 GHz turbo for responsive multitasking
  • 16 GB DDR4 2666 MHz memory handles large datasets smoothly
  • 500 GB NVMe SSD boots Windows 11 Pro in seconds
  • Quadro P4000 8 GB GDDR5 drives four DisplayPort 1.4 monitors
  • 500 W 90 % efficient power supply supports sustained workloads

HP Z2 G4 Mid Tower Workstation

The HP Z2 G4 Mid Tower is a business-class workstation built around an Intel Core i5-9500 6-core processor with a 4.4 GHz turbo frequency. It ships with 16 GB of DDR4 2666 memory and a 500 GB NVMe SSD. The NVIDIA Quadro P4000 8 GB graphics card drives professional visualisation workloads. Windows 11 Pro 64-bit is pre-installed and digitally activated.

Quadro P4000 8 GB and Connectivity

The Quadro P4000 provides 8 GB of GDDR5 memory on a 256-bit bus with four DisplayPort 1.4 outputs for multi-monitor setups. Integrated Intel I219-LM Gigabit Ethernet handles wired networking at 10/100/1000 speeds. Conexant CX20632 5.1 high-definition audio supports surround sound. A 500 W 90% efficient power supply delivers stable power to all components.

Memory Headroom and Storage Limits

The system supports up to 128 GB of DDR4 memory, giving ample headroom for larger datasets and virtual machines beyond the installed 16 GB. The single 500 GB NVMe SSD offers fast boot and application loading but will require supplementary drives for extensive project libraries or media archives. Buyers needing greater GPU memory or multiple high-end graphics cards should consider alternative configurations.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $520.99
Typical for this category: the median of 14,711 items is $494.99.
RAM capacity 16 GB DDR4
Typical for this category: the median of 13,125 items is 16 GB.
SSD storage 500 GB pcie
Lower than about 70% of the 11,342 comparable items (median 512 GB).

Specifications

Product
Product lineZ2
Model nameG4
Product typeBusiness Desktops & Workstations
Recommended useBusiness
Product colorBlack
Processor
ProcessorIntel Core i5
CPU modelIntel Core i5-9500
CPU socketLGA 1151
Memory
RAM capacity16 GB DDR4
RAM type and speedDDR4 2666
Max supported RAM128 GB
Storage
SSD storage500 GB pcie
Hard driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsNVIDIA Quadro P4000
Size & build
Form factorMid Tower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro

Questions about this item

Will the 500W 90% efficient power supply need replacement if I upgrade to a higher-wattage GPU later?

The 500W unit delivers up to 500 watts at 90 percent efficiency; a GPU drawing more than the remaining headroom would require a higher-capacity PSU.

What thermal limit appears first when the Intel Core i5-9500 runs at 4.4GHz turbo across all six cores for extended periods?

The processor hits its 4.4 GHz turbo ceiling and the mid-tower cooler must dissipate the resulting heat before any other component throttles.

How loud is the system when the Quadro P4000 8GB GDDR5 and the 500W supply run a full-day render workload?

Under sustained load the workstation’s fans ramp to move heat from the 256-bit GPU and 90 percent efficient PSU, producing audible but office-typical noise.

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