HP Z4 G4 Mid-Tower Workstation Xeon W-2235 3.8GHz 256GB DDR4 2TB NVMe Quadro P2000 5GB Windows 11 Pro

Workstation Overview

The HP Z4 G4 is a mid-tower business workstation built for professional workloads that demand high core counts and large memory capacity. It ships new with Windows 11 Pro and an Intel Xeon W-2235 six-core processor running at 3.8 GHz with a 4.6 GHz turbo frequency. The system includes an Nvidia Quadro P2000 graphics card with 5 GB GDDR5 memory and four DisplayPort 1.4 outputs. Integrated gigabit Ethernet and high-definition audio handle baseline connectivity.

Memory and Storage Headroom

The platform populates all eight DIMM slots with 32 GB modules, delivering 256 GB of DDR4 2933 ECC registered memory out of a 512 GB maximum supported capacity. This configuration leaves no empty slots for further expansion without removing existing modules. A 2 TB PCIe NVMe M.2 solid-state drive provides the primary boot and project volume. Additional internal bays and M.2 slots documented in the chassis design allow combinations of SATA and NVMe drives for larger datasets.

Power and Graphics Interface Limits

The workstation is powered by a 1000 W 80 Plus Gold power supply rated at 90 percent efficiency, which sets the practical ceiling for total system draw and future GPU upgrades. The installed Quadro P2000 uses a 160-bit memory interface and connects via four DisplayPort 1.4 connectors, limiting external display configurations to that interface standard. Multiple PCIe slots support professional graphics options, but any added card must operate within the power budget and physical clearance of the mid-tower chassis.