HP Z4 G4 Workstation Xeon W-2225 4.1GHz 128GB DDR4 1TB NVMe RTX 4000 8GB Windows 11 Pro

Professional single-processor workstation

The HP Z4 G4 is a new mid-tower business desktop built around an Intel Xeon W-2225 4.1GHz processor with a 4.6GHz turbo frequency across four cores. It ships with 128GB of DDR4 2933 ECC registered memory configured as four 32GB modules and a 1TB PCIe NVMe solid-state drive. An Nvidia Quadro RTX 4000 graphics card provides 8GB of GDDR6 memory on a 256-bit bus for professional visualisation workloads. Windows 11 Pro is pre-installed and digitally activated.

Tool-less mid-tower chassis with 1000W Gold supply

The black mid-tower enclosure offers tool-less access to internal components and includes multiple PCIe slots for expansion cards. A 1000W power supply rated at 80 Plus Gold 90% efficiency delivers stable power to the CPU and GPU under sustained loads. The Quadro RTX 4000 outputs video through three DisplayPort 1.4 connectors and one USB-C graphics port, supporting multi-monitor configurations without adapters. Integrated gigabit ethernet and high-definition audio handle networking and sound without add-in cards.

Upgrades from entry workstations or aging towers

This system replaces older single-socket workstations that cannot address large datasets or drive modern professional GPUs. The 128GB ECC memory capacity and 512GB maximum supported memory suit users working with complex simulations or large-model CAD who exceed 64GB limits on mainstream platforms. Buyers who need dual-processor scaling, higher core counts per socket, or rack-mount form factors should evaluate larger platforms instead.