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Black mid-tower workstation chassis with front I/O panel and side venting

HP

HP Z4 G4 Business Desktop Xeon W-2235 3.8GHz 16GB DDR4 2TB NVMe RTX 4000 8GB Windows 11 Pro

SKU CH-W25V-DKF2Q

Mid-tower workstation with 6-core Xeon W-2235 at 3.8GHz, 16GB DDR4 ECC, 2TB NVMe SSD and Quadro RTX 4000 8GB graphics

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity16 GB DDR4
  • SSD storage2 TB PCIe
  • GraphicsNVIDIA Quadro RTX 4000
  • Operating systemWindows 11 Pro
  • 6-core Xeon W-2235 reaches 4.6 GHz turbo for fast compute
  • 16 GB DDR4-2933 ECC memory ensures data integrity under load
  • 2 TB NVMe SSD provides rapid project storage access
  • Quadro RTX 4000 8 GB GDDR6 drives professional 3D and GPU workloads
  • 1000 W 80 Plus Gold supply delivers 90 % efficient power

Professional Workstation Performance

The HP Z4 G4 is a mid-tower business desktop built for compute-intensive workflows. It ships with an Intel Xeon W-2235 processor running at 3.8GHz with a 4.6GHz turbo frequency across six cores. The system includes 16GB of DDR4 2933 ECC registered memory in a dual-channel configuration. Windows 11 Pro is pre-installed and digitally activated for immediate deployment.

Upgrading From Entry Systems

This configuration replaces older workstations limited to four cores, non-ECC memory or SATA-only storage. The jump is worth it when your applications demand certified GPU acceleration, error-correcting memory for data integrity or PCIe NVMe speeds for large project files. The LGA 2066 platform supports up to 512GB of DDR42933 ECC SDRAM for future expansion. Buyers who need only basic office productivity or single-monitor setups will not utilise the certified graphics and expandability this platform provides.

Build Integration Requirements

The Nvidia Quadro RTX 4000 adds 8GB of GDDR6 memory on a 256-bit bus with three DisplayPort 1.4 outputs and one USB-C connector for professional displays. A 1000W 80 Plus Gold power supply rated at 90% efficiency delivers stable power for the GPU and additional PCIe cards. The 2TB NVMe SSD occupies one M.2 slot, leaving internal bays and further M.2 positions open for SATA or PCIe storage arrays. Tool-less chassis access simplifies the installation of extra memory, storage or add-in cards without proprietary tools.

How it compares

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

Price $909.99
Cheaper than about 75% 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 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 capacity16 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

Will a 256-bit 8GB GDDR6 RTX 4000 fit in the mid-tower case?

The Quadro RTX 4000 is a full-height dual-slot card and the Z4 G4 mid-tower has three PCIe x16 slots with enough length and clearance for professional graphics cards of this size.

How do I install the 16GB DDR4 2933 ECC registered memory in the 8-channel Xeon W-2235 system?

Populate the six DIMM slots in the order marked on the motherboard — channels one and two first — so the two 8GB modules run in dual-channel mode from boot.

When should I plan to replace the 1000W 80 Plus Gold power supply in a workstation running 4.6GHz turbo loads?

The 1000W Gold unit is rated for continuous 90% efficiency; under sustained 4.6GHz turbo workloads expect a service life of five to seven years before capacitor ageing makes replacement prudent.

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