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Black mid-tower workstation chassis with front panel ports and ventilation grille

HP

HP Z4 G4 Business Desktop Xeon W-2225 4.1GHz 128GB DDR4 2TB NVMe Quadro RTX 4000 8GB Windows 11 Pro

SKU CH-ASX1-B9MM3

A mid-tower workstation with a 4.1 GHz Xeon W-2225, 128 GB DDR4 ECC memory, 2 TB NVMe storage and an NVIDIA Quadro RTX 4000 8 GB graphics card

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity128 GB DDR4
  • SSD storage2 TB PCIe
  • GraphicsNVIDIA Quadro RTX 4000
  • Operating systemWindows 11 Pro
  • Intel Xeon W-2225 4.1GHz turbo to 4.6GHz powers compute-intensive workflows
  • 128GB DDR4 2933MHz ECC registered memory handles large datasets reliably
  • 2TB PCIe NVMe SSD delivers fast system responsiveness and capacity
  • NVIDIA Quadro RTX 4000 8GB GDDR6 certified for professional 3D applications
  • 1000W 80 Plus Gold 90% efficient PSU supports expandable configurations

Professional Workstation for Demanding Workflows

The HP Z4 G4 is a new mid-tower workstation built around an Intel Xeon W-2225 processor running at 4.1GHz with a 4.6GHz turbo frequency across four cores. It ships with 128GB of DDR4 2933 ECC registered memory configured as four 32GB modules. A 2TB PCIe NVMe SSD provides primary storage. An NVIDIA Quadro RTX 4000 graphics card with 8GB GDDR6 memory drives professional visualisation workloads. Windows 11 Pro is pre-installed and digitally activated.

Compatibility and Expansion Checks

Verify that your workflow benefits from ECC registered DDR4 memory and the LGA 2066 socket platform before ordering. The system supports a maximum of 512GB of DDR4 2933 memory across its available slots. The Quadro RTX 4000 provides three DisplayPort 1.4 outputs and one USB-C connector for display connectivity. Internal expansion relies on standard PCIe slots and M.2 interfaces for additional NVMe or SATA drives. Integrated Gigabit Ethernet and high-definition audio are provided on the motherboard.

Thermals, Noise and Power Draw

A 1000W 80 Plus Gold power supply rated at 90% efficiency delivers power to all components. The single-processor design and mid-tower chassis allow airflow across the Xeon W-2225 and Quadro RTX 4000 under sustained compute or rendering loads. Fan speeds scale with thermal demand from the CPU and GPU during professional application use. Acoustic output will vary with workload intensity but the platform is engineered for workstation-class thermal management in typical office environments.

How it compares

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

Price $1,801.99
Cheaper than about 68% of the 2,161 comparable items (median $5,687.99).
RAM capacity 128 GB DDR4
Higher than about 60% of the 2,095 comparable items (median 64 GB).
SSD storage 2 TB PCIe
Typical for this category: the median of 2,058 items is 2 TB.

Specifications

Product
Product lineZ4
Model nameG4
Product typeBusiness Desktops & Workstations
Recommended useBusiness
Product colorBlack
Processor
ProcessorIntel Xeon
CPU socketLGA 2066
Memory
RAM capacity128 GB DDR4
RAM type and speedDDR4 2933
Max supported RAM512 GB
Storage
SSD storage2 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

Does the workstation ship with the 128 GB of DDR4 2933 ECC memory already installed, or do I need to buy modules separately?

The system comes with 128 GB (4×32 GB) DDR4 2933 ECC registered memory pre-installed, so no additional modules are required for that capacity.

Should I choose the 2 TB NVMe SSD or add a larger SATA drive for project storage?

The 2 TB PCIe NVMe drive is already fitted; the chassis also provides extra internal bays and M.2 slots if you later want to add SATA or additional NVMe storage.

What does the 4.1 GHz base clock with 4.6 GHz turbo mean for real-world rendering on the Quadro RTX 4000?

The Xeon W-2225 runs at 4.1 GHz base and can boost to 4.6 GHz, giving strong single-thread speed for CAD and simulation while the RTX 4000’s 8 GB GDDR6 handles GPU-accelerated rendering.

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