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Black mid-tower workstation chassis, clean front panel with HP branding

HP

HP Z4 G4 Workstation Xeon W-2235 3.8GHz 16GB 4TB NVMe RTX 4000 8GB Win 11 Pro

SKU CH-BRD1-2ZD5H

Mid-tower workstation with a 6-core Xeon W-2235 at 3.8GHz, 16GB DDR4 ECC memory, 4TB NVMe SSD and Quadro RTX 4000 8GB graphics for professional 3D and compute workloads

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity16 GB DDR4
  • SSD storage4 TB PCIe
  • GraphicsNVIDIA Quadro RTX 4000
  • Operating systemWindows 11 Pro
  • 6-core Xeon W-2235 reaches 4.6 GHz turbo for compute-heavy tasks
  • 16 GB DDR4-2933 ECC memory keeps large datasets accurate
  • 4 TB NVMe SSD gives fast, high-capacity project storage
  • Quadro RTX 4000 8 GB GDDR6 drives certified 3D and GPU workloads
  • 1000 W 80 Plus Gold PSU delivers 90 % efficient, reliable power

Z4 G4 Workstation for Professional Workflows

The HP Z4 G4 is a mid-tower business desktop built around an Intel Xeon W-2235 processor running at 3.8 GHz with a 4.6 GHz turbo frequency. Six cores handle compute-intensive applications such as 3D CAD, rendering and simulation. Windows 11 Pro 64-bit is pre-installed with digital activation.

ECC Memory and Quadro RTX 4000 Graphics

Sixteen gigabytes of DDR4 2933 ECC registered memory in a two-module configuration provides error correction for data integrity during long calculations. The Nvidia Quadro RTX 4000 adds 8 GB of GDDR6 video memory on a 256-bit bus with three DisplayPort 1.4 outputs and one USB-C connector for professional display setups.

4 TB PCIe NVMe System Drive

A single 4 TB M.2 PCIe NVMe solid-state drive serves as the primary storage volume, delivering fast boot and project-load speeds. The platform supports up to 512 GB of total DDR4 memory across its slots, so larger datasets will require additional modules beyond the factory 16 GB configuration.

How it compares

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

Price $1,109.99
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 RTX 4000
Size & build
Form factorMid Tower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro

Questions about this item

Will the 16 GB DDR4 2933 ECC modules need to be replaced if I expand to 512 GB later?

The board supports 512 GB total, so you can add more DDR4 2933 ECC sticks without removing the original 2 x 8 GB kit.

Which component hits its thermal or power ceiling first when the Xeon W-2235 runs at 4.6 GHz turbo all day?

The 1000 W 80 Plus Gold supply delivers ample headroom; the 6-core Xeon and RTX 4000 8 GB are both rated well within that budget, so neither hits a hard limit first.

How loud and hot does the mid-tower get with the RTX 4000 and 1000 W PSU under continuous load?

The 80 Plus Gold 90 % efficient PSU and workstation-grade cooling keep noise low and temperatures stable during extended render or simulation sessions.

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