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Black mid-tower workstation chassis with front panel vents

HP

HP Z4 G4 Workstation Xeon W-2235 3.8GHz 256GB DDR4 1TB NVMe RTX 4000 8GB Windows 11 Pro

SKU CH-D3HP-21BJ1

Mid-tower workstation with a 6-core Xeon W-2235, 256GB DDR4 ECC memory, 1TB NVMe SSD and Quadro RTX 4000 graphics for professional workloads

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity256 GB DDR4
  • SSD storage1 TB PCIe
  • GraphicsNVIDIA Quadro RTX 4000
  • Operating systemWindows 11 Pro
  • 6-core Xeon W-2235 reaches 4.6 GHz turbo for fast compute
  • 256 GB DDR4-2933 ECC memory handles large datasets reliably
  • 1 TB NVMe SSD gives rapid system and project storage
  • Quadro RTX 4000 8 GB GDDR6 drives 3D CAD and rendering
  • 1000 W 80 Plus Gold supply delivers stable power for expansion

Mid-Tower Workstation for Demanding Professional

This HP Z4 G4 system is built for engineers, designers and data scientists who need certified single-processor performance. The mid-tower chassis provides tool-less access for serviceability and expansion. Windows 11 Pro is pre-installed and digitally activated. A monitor is not included.

256 GB DDR4 2933 ECC Registered Memory

The workstation ships with eight 32 GB modules running at DDR4 2933, totalling 256 GB of error-correcting memory. Four additional slots remain open, allowing expansion up to the platform maximum of 512 GB. This capacity supports large datasets, complex simulations and multi-application workloads without paging bottlenecks.

NVIDIA Quadro RTX 4000 8 GB GDDR6

The graphics card delivers professional visualisation through three DisplayPort 1.4 outputs and one USB-C connector. A factory-fitted 1000 W power supply rated at 90 % efficiency provides headroom for the GPU and further internal upgrades. Integrated Gigabit Ethernet and high-definition audio handle baseline connectivity.

How it compares

Measured against everything we stock in Business & Office Desktops, at today’s prices. Recalculated every night.

Price $2,995.99
Cheaper than about 63% of the 2,161 comparable items (median $5,687.99).
RAM capacity 256 GB DDR4
Higher than about 90% of the 2,095 comparable items (median 64 GB).
SSD storage 1 TB PCIe
Lower than about 60% of the 2,058 comparable items (median 2 TB).

Specifications

Product
Product lineZ4
Model nameG4
Product typeBusiness Desktops & Workstations
Recommended useBusiness
Product colorBlack
Processor
ProcessorIntel Xeon
CPU socketLGA 2066
Memory
RAM capacity256 GB DDR4
RAM type and speedDDR4 2933
Max supported RAM512 GB
Storage
SSD storage1 TB PCIe
Display
Screen sizeNo Screen
Graphics
GraphicsNVIDIA Quadro RTX 4000
Size & build
Form factorMid Tower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro

Questions about this item

What does the Xeon W-2235's 3.8 GHz base and 4.6 GHz turbo mean for single-threaded workloads?

The six-core Xeon W-2235 runs at 3.8 GHz base clock and can boost a single core to 4.6 GHz, giving strong single-thread responsiveness for CAD and simulation tasks that still rely on peak frequency.

How does the PCIe NVMe interface limit the 1 TB drive's real-world throughput?

The 1 TB SSD uses a PCIe NVMe interface; sequential read and write speeds will be capped by the PCIe generation supported by the LGA 2066 platform and the drive's own controller.

What physical space and power does the Quadro RTX 4000 8 GB require inside the mid-tower?

The Quadro RTX 4000 is a dual-slot full-height card drawing power from the 1000 W 80 Plus Gold supply; the mid-tower chassis provides the length, height and auxiliary power connectors it needs.

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