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Black mid-tower workstation chassis, tool-less side panel access

HP

HP Z4 G4 Workstation Xeon W-2225 64GB DDR4 1TB NVMe Quadro RTX 4000 8GB

SKU CH-HHN6-ENEBK

Mid-tower workstation with Xeon W-2225 4.1 GHz 4-core CPU, 64 GB DDR4 ECC, 1 TB NVMe SSD and Quadro RTX 4000 8 GB GDDR6 for professional 3D and compute workloads

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity64 GB DDR4
  • SSD storage1 TB PCIe
  • GraphicsNVIDIA Quadro RTX 4000
  • Operating systemWindows 11 Pro
  • Xeon W-2225 reaches 4.6 GHz turbo for fast single-thread speed
  • 64 GB DDR4 2933 ECC memory handles large datasets reliably
  • 1 TB NVMe SSD gives rapid project storage access
  • Quadro RTX 4000 8 GB GDDR6 drives certified 3D and GPU workloads
  • 1000 W 80 Plus Gold PSU delivers 90 % efficient stable power

Professional Workstation Core

The HP Z4 G4 Mid-Tower Workstation is built for professionals who need reliable single-processor performance. It runs on an Intel Xeon W-2225 processor with four cores at 4.1GHz and a 4.6GHz Turbo frequency. The system ships with 64GB of DDR4 2933 ECC Registered Memory in a 4x 16GB configuration. Windows 11 Pro is pre-installed and digitally activated.

Build Integration Ready

The mid-tower chassis provides tool-less access to internal components and multiple PCIe slots for expansion. A 1000W 80 Plus Gold power supply rated at 90% efficiency delivers stable power for the installed Quadro RTX 4000 and future add-in cards. The LGA 2066 socket and four-channel memory architecture support up to 512GB of DDR42933 ECC SDRAM. Integrated Gigabit Ethernet and High-Definition Audio handle baseline connectivity.

Memory and Graphics Headroom

The 1TB M.2 NVMe Solid State Drive offers fast system responsiveness for active projects. The Nvidia Quadro RTX 4000 provides 8GB of GDDR6 memory across a 256-bit interface with three DP 1.4 outputs and one USB-C graphics connector. This configuration handles 3D CAD, rendering and GPU-accelerated workloads within certified ISV environments. Buyers who need more storage bays or multi-GPU scaling should verify chassis and power limits before purchase.

How it compares

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

Price $1,070.99
Cheaper than about 73% of the 2,161 comparable items (median $5,687.99).
RAM capacity 64 GB DDR4
Typical for this category: the median of 2,095 items is 64 GB.
SSD storage 1 TB PCIe
Lower than about 60% 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 capacity64 GB DDR4
RAM type and speedDDR4 2933
Max supported RAM512 GB
Storage
SSD storage1 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

What limits sustained performance first on the Xeon W-2225 4-core processor with 4.6 GHz turbo?

The four-core design reaches full turbo frequency under heavy multi-threaded loads, so core count becomes the bottleneck before thermal throttling on the 1000 W 80 Plus Gold supply.

How loud and hot does the mid-tower run with the Quadro RTX 4000 8 GB GDDR6 under all-day load?

The 1000 W 80 Plus Gold power supply runs at 90 % efficiency, keeping waste heat low; the workstation's thermal design targets quiet operation during extended render or compute sessions.

Which display cables and monitors are needed for the 3× DP 1.4 and 1× USB-C outputs on the Quadro RTX 4000?

You must provide DisplayPort 1.4 cables or a USB-C-to-DisplayPort adapter plus monitors that accept those inputs; no monitor is included with the workstation.

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