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Black rackmount workstation with front power and status LEDs

HP

HP Z4 G4 Xeon W-2135 12-Core 3.70GHz 32GB DDR4 1TB HDD Quadro K4000 Windows 11 Pro

SKU CH-WS8K-YMAXB

A 12-core Xeon workstation with 32GB DDR4, 1TB HDD and Quadro K4000 for professional CAD and rendering

  • ProcessorW-2135
  • Installed RAM32 GB
  • Processor core count12
  • Operating systemWindows 11 Pro
  • Type of memoryDDR4
  • Processor speed3.7 GHz
  • Xeon W-2135 12-core CPU powers demanding professional workloads
  • 32 GB DDR4 memory enables smooth multitasking with large files
  • NVIDIA Quadro K4000 GPU accelerates CAD, rendering and multi-display setups
  • 1 TB HDD provides reliable storage capacity for projects and data
  • Windows 11 Pro pre-installed for immediate out-of-box productivity

Professional workstation for CAD and rendering

The HP Z4 G4 workstation targets engineers, designers and content creators who need certified drivers and ECC memory support for professional applications. Its Xeon W-2135 processor delivers twelve cores at 3.70GHz for responsive performance in design, rendering and data-heavy workloads. The 32GB DDR4 configuration handles larger projects and smooth multitasking out of the box.

Thermals, noise and power in daily use

Rackmount construction channels airflow across the CPU and dedicated Quadro K4000 GPU to keep temperatures stable during typical office hours. Front-panel LEDs for power, Ethernet and USB give immediate status feedback without adding audible distraction. The 1TB HDD and dual 3.5-inch bays plus one M.2 slot provide practical storage expansion while the chassis maintains a 60 weight profile.

Behaviour under sustained load

The twelve-core Xeon maintains clock speeds across extended rendering or simulation runs thanks to workstation-class cooling designed for continuous operation. Quadro K4000 drivers are optimised for long-duration CAD and multi-display tasks rather than short gaming bursts. Windows 11 Pro arrives pre-configured so the system is ready for production workloads immediately after deployment.

How it compares

Measured against everything we stock in Desktop Workstation Computers, at today’s prices. Recalculated every night.

Price $909.99
Cheaper than about 72% of the 1,534 comparable items (median $2,906.49).
Installed RAM 32 GB
Lower than about 90% of the 1,387 comparable items (median 128 GB).
Processor core count 12
Lower than about 75% of the 1,207 comparable items (median 24).

Specifications

Product
Brand nameHP
Product typeRackmount
Processor
ProcessorW-2135
Processor core count12
Processor speed3.7 GHz
Memory
Installed RAM32 GB
Type of memoryDDR4
Maximum RAM capacity512 GB
Storage
Drive bays2x 3.5 in bays, 1x M.2
Graphics
Graphics chipDedicated
Software
Operating systemWindows 11 Pro
More details
Indicator lightsPower, Ethernet, USB

Questions about this item

How do I install the Xeon W-2135 processor and what step is often missed?

The processor comes pre-installed in the socket; the step people skip is updating the BIOS before adding any DDR4 modules beyond the factory 32GB

What maintenance or replacement will the 1TB HDD need later?

Plan to replace the mechanical drive when its SMART health drops below threshold or when you need faster throughput than the single 3.5" bay can deliver

What limit appears first when the Quadro K4000 runs sustained workloads?

The 3GB frame buffer fills before the GPU cores saturate, so large scenes or multi-display setups hit memory capacity first

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