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

HP

HP Z4 G4 Workstation Xeon W-2225 4.1GHz 128GB DDR4 2TB NVMe Quadro RTX 5000 16GB Windows 11 Pro

SKU CH-XP6W-EC542

Mid-tower workstation with Xeon W-2225 4.1GHz, 128GB DDR4 ECC, 2TB NVMe SSD and Quadro RTX 5000 16GB for professional compute

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity128 GB DDR4
  • SSD storage2 TB PCIe
  • GraphicsNVIDIA Quadro RTX 5000
  • Operating systemWindows 11 Pro
  • Xeon W-2225 4.1 GHz (4.6 GHz Turbo) powers compute-intensive tasks
  • 128 GB DDR4 2933 ECC registered memory handles large datasets reliably
  • 2 TB NVMe SSD provides fast system responsiveness and capacity
  • Quadro RTX 5000 16 GB GDDR6 with 4× DP 1.4 drives professional 3D workloads
  • 1000 W 80 Plus Gold 90 % efficient PSU supports high-end components

Professional workstation for compute-intensive

The HP Z4 G4 is a mid-tower business desktop built around an Intel Xeon W-2225 4.1 GHz quad-core processor with 4.6 GHz turbo. It ships with 128 GB of DDR4 2933 ECC registered memory in a 4×32 GB configuration, a 2 TB PCIe NVMe SSD and an Nvidia Quadro RTX 5000 16 GB GDDR6 graphics card. Windows 11 Pro is pre-installed for immediate deployment.

ECC memory capacity and expandability to 512 GB

The system uses DDR4 2933 ECC registered modules, providing error correction for data integrity in critical workloads. Four slots are populated with 32 GB modules, leaving room to reach the platform maximum of 512 GB without replacing existing sticks. This architecture supports large datasets and complex simulations that exceed standard desktop limits.

2 TB NVMe boot drive with internal expansion

The primary 2 TB M.2 PCIe NVMe SSD delivers fast system responsiveness for active projects. Additional internal bays and M.2 slots accept SATA or further PCIe NVMe drives for high-capacity project storage. Buyers who want more storage than the single factory drive provides can add secondary volumes without external enclosures.

How it compares

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

Price $2,494.99
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 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 5000
Size & build
Form factorMid Tower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro

Questions about this item

What does the Xeon W-2225 4.1 GHz turbo speed mean for sustained workloads?

The processor reaches 4.6 GHz under single-core boost and holds 4.1 GHz across all four cores, giving consistent performance for CAD and simulation tasks.

What display connections does the Quadro RTX 5000 provide?

The card offers four DisplayPort 1.4 outputs and one VirtualLink port, supporting multiple 4K or 8K monitors from a single GPU.

How many memory slots are occupied by the 128 GB DDR4 kit?

The 128 GB configuration uses four 32 GB ECC registered modules, filling four of the eight available DDR4 slots for future expansion.

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