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Black mid-tower workstation chassis, front panel vents and HP branding

HP

HP Z4 G4 Business Desktop Xeon W-2235 128GB 4TB NVMe RTX 5000 16GB Windows 11 Pro

SKU CH-8WPF-H90G1

Mid-tower workstation with a 3.8 GHz 6-core Xeon W-2235, 128 GB DDR4 ECC memory, 4 TB NVMe SSD and Nvidia Quadro RTX 5000 16 GB graphics, running Windows 11 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity128 GB DDR4
  • SSD storage4 TB PCIe
  • GraphicsNVIDIA Quadro RTX 5000
  • Operating systemWindows 11 Pro
  • Intel Xeon W-2235 3.8 GHz base and 4.6 GHz turbo speeds accelerate compute-intensive workloads
  • 128 GB DDR4 2933 ECC registered memory handles large datasets with error correction
  • 4 TB NVMe SSD provides fast system responsiveness and high-capacity project storage
  • NVIDIA Quadro RTX 5000 16 GB GDDR6 256-bit graphics drives 3D CAD and rendering
  • 1000 W 80 Plus Gold 90% efficient power supply delivers reliable energy for demanding configurations

Professional workstation for compute workloads

The HP Z4 G4 mid-tower desktop is built around an Intel Xeon W-2235 processor running at 3.8 GHz with a 4.6 GHz turbo across six cores. It ships with 128 GB of DDR4 2933 ECC registered memory in four 32 GB modules and a 4 TB PCIe NVMe solid-state drive. An Nvidia Quadro RTX 5000 graphics card with 16 GB of GDDR6 memory on a 256-bit bus provides four DisplayPort 1.4 outputs plus VirtualLink, all powered by a 1000 W 80 Plus Gold supply under Windows 11 Pro.

Suited for certified professional applications

This system targets engineers, designers and analysts who rely on ISV-certified drivers for 3D CAD, rendering, visualization and GPU-accelerated simulations. The Xeon platform supports up to 512 GB of DDR42933 ECC memory for large datasets, while the Quadro RTX 5000 delivers professional graphics stability. Buyers who need consumer gaming features or multiple graphics cards should look elsewhere because this workstation is validated for professional software stacks and single high-end GPU configurations.

16 GB GDDR6 Quadro RTX 5000 decides fit

The single specification that determines suitability is the Nvidia Quadro RTX 5000 with 16 GB of GDDR6 memory on a 256-bit interface driving four DisplayPort 1.4 connectors and VirtualLink. This GPU tier is certified for professional visualization and compute workloads that require validated drivers and error-correcting memory support. If your workflow demands a different VRAM capacity or consumer GeForce features, this specific graphics configuration will not match the requirement.

How it compares

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

Price $2,419.99
Cheaper than about 65% 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 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 capacity128 GB DDR4
RAM type and speedDDR4 2933
Max supported RAM512 GB
Storage
SSD storage4 TB PCIe
Display
Screen sizeNo Screen
Graphics
GraphicsNVIDIA Quadro RTX 5000
Size & build
Form factorMid Tower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro

Questions about this item

What motherboard socket must my system have to accept the Intel Xeon W-2235 processor?

The workstation uses an LGA 2066 socket, which is required for the Xeon W-2235 3.8 GHz 6-core CPU installed in this unit.

Will my existing DDR4 2933 ECC Registered modules work with the four 32 GB sticks already installed?

Yes, the board supports up to 512 GB of DDR4 2933 ECC Registered memory, so additional compatible modules can be added alongside the factory 128 GB kit.

How can I verify the Nvidia Quadro RTX 5000 16 GB is running at full PCIe bandwidth after installation?

Check the GPU-Z or NVIDIA Control Panel link width; it should show PCIe x16 Gen 3 or Gen 4 operation with the 256-bit GDDR6 memory interface active.

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