HP Z4 G4 Mid-Tower Xeon W-2235 128GB 500GB NVMe Quadro P4000 Windows 11 Pro

HP Z4 G4 Xeon W-2235 Workstation

This HP Z4 G4 mid-tower workstation is built around an Intel Xeon W-2235 processor running at 3.8GHz with a 4.6GHz turbo across six cores. It ships with 128GB of DDR4 2933 ECC registered memory in a four-module configuration. A 500GB NVMe SSD provides the primary boot volume. The Nvidia Quadro P4000 graphics card adds 8GB of GDDR5 memory and four DisplayPort 1.4 outputs. Windows 11 Pro is pre-installed and digitally activated.

Who This Suits and Who Should Look Elsewhere

This system suits engineers, designers and analysts who need certified ISV stability, ECC memory integrity and professional graphics drivers for CAD, rendering or simulation workloads. The 1000W 80 Plus Gold power supply and tool-less chassis support future GPU or storage expansion. Buyers who need more than 500GB of high-speed NVMe capacity out of the box should look elsewhere. Users requiring dual-processor scaling or a rackmount form factor will not find those here.

Deciding Specification — 128GB DDR4 2933 ECC Memory

The 128GB DDR4 2933 ECC registered memory kit is the specification that determines fit for purpose. It delivers the capacity and error correction required for large datasets and long compute jobs on the Xeon W-2235 platform. The board supports up to 512GB total, so this configuration leaves headroom for growth. If your workload fits comfortably in 64GB or less, a smaller kit would reduce cost without losing stability.