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HP

HP Z4 G4 Workstation Xeon W-2235 3.8GHz 16GB DDR4 4TB NVMe Quadro P4000 8GB Windows 11 Pro

SKU CH-WM2A-A0QRE

Mid-tower workstation with Xeon W-2235 3.8GHz 6-core CPU, 16GB DDR4 2933 ECC memory, 4TB NVMe SSD, and Quadro P4000 8GB graphics for professional 3D and compute workloads

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity16 GB DDR4
  • SSD storage4 TB PCIe
  • GraphicsNVIDIA Quadro P4000
  • Operating systemWindows 11 Pro
  • 6-core Xeon W-2235 reaches 4.6GHz turbo for fast compute
  • 16GB DDR4 2933MHz ECC memory ensures data integrity
  • 4TB NVMe SSD provides high-capacity responsive storage
  • Quadro P4000 8GB GDDR5 drives professional 3D workflows
  • 1000W 80 Plus Gold PSU delivers 90% efficient power

HP Z4 G4 Workstation for Demanding Professional

This HP Z4 G4 mid-tower workstation is built for professionals who need reliable single-processor performance for compute-intensive applications. It runs Windows 11 Pro on an Intel Xeon W-2235 processor with 6 cores at 3.8GHz and a 4.6GHz turbo frequency. The system includes 16GB of DDR4 2933 ECC registered memory and a 4TB PCIe NVMe SSD for fast access to large project files. It targets users in 3D CAD, rendering, and visualization who require ISV-certified stability.

Thermals Noise and Power

The workstation is powered by a 1000W 80 Plus Gold power supply rated at 90% efficiency, delivering stable power to the CPU and Nvidia Quadro P4000 graphics card under sustained loads. The mid-tower chassis uses a tool-less design to manage airflow across the Xeon processor and professional GPU during extended rendering or simulation tasks. Integrated high-definition audio and gigabit ethernet operate without adding significant thermal load. The 80 Plus Gold certification ensures efficient power conversion for continuous professional workloads.

Quadro P4000 8GB GDDR5 for Certified Professional

The Nvidia Quadro P4000 provides 8GB of GDDR5 memory on a 256-bit interface with four DisplayPort 1.4 outputs for multi-display visualisation setups. This GPU is certified for leading professional applications, ensuring driver stability for 3D CAD and GPU-accelerated workflows. The workstation supports up to 512GB of DDR4 2933 ECC memory across its DIMM slots for future expansion. Buyers who need higher GPU memory for complex scene rendering or double-precision compute should consider alternative configurations.

How it compares

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

Price $1,089.99
Cheaper than about 73% of the 2,161 comparable items (median $5,687.99).
RAM capacity 16 GB DDR4
Lower than about 80% of the 2,095 comparable items (median 64 GB).
SSD storage 4 TB PCIe
Higher than about 70% 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 capacity16 GB DDR4
RAM type and speedDDR4 2933
Max supported RAM512 GB
Storage
SSD storage4 TB PCIe
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

How do I install the 16GB DDR4 2933 ECC registered memory into the HP Z4 G4 workstation, and which step is commonly missed?

Power off the workstation, remove the side panel, locate the eight DIMM slots on the motherboard, and insert each module into the slots indicated for dual-channel operation — the step most people miss is seating the modules until both retention clips click audibly.

What maintenance or replacement will the 1000W 80 Plus Gold power supply need later in the HP Z4 G4?

The power supply has no user-serviceable parts; after several years of continuous operation the internal fan bearings may wear and the electrolytic capacitors can age, so plan to replace the entire 1000W unit with an identical HP 80 Plus Gold module when voltages drift or fan noise increases.

What limit appears first when the Xeon W-2235 3.8GHz 6-core processor runs sustained heavy workloads in the HP Z4 G4?

The processor will hit its thermal ceiling first; under prolonged full-core load the 3.8GHz base frequency is maintained while the 4.6GHz turbo is progressively reduced to keep the CPU within its thermal design power, so sustained performance settles at the base clock.

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