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Black tower workstation with DVD drive bay and front USB ports

HP

HP Z4 G4 Workstation Xeon W-2135 3.7GHz 16GB DDR4 250GB NVMe 2TB Quadro P1000

SKU CH-BKW3-4FB91

Tower workstation with Xeon W-2135 6-core CPU, 16GB DDR4 ECC, 250GB NVMe plus 2TB SATA, and Quadro P1000 4GB GDDR5 for professional CAD and rendering

  • ProcessorIntel Xeon
  • Installed RAM16 GB
  • Video RAM4 GB
  • Installed SSD250 GB
  • Chipset750 W
  • Type of memoryDDR4

Installed Memory Size 16GB

SSD (Installed) 250GB

HDD 2TB

  • 6-core Xeon W-2135 at 3.7GHz powers demanding professional workloads
  • 16GB DDR4 ECC memory with four-channel architecture supports smooth multitasking
  • 250GB NVMe SSD plus 2TB SATA drive delivers fast boot and ample storage
  • NVIDIA Quadro P1000 with 4GB GDDR5 handles CAD, rendering and multi-display setups
  • Windows 11 pre-installed provides a ready-to-use professional environment

HP Z4 G4 Workstation

The HP Z4 G4 is a tower workstation built for professional design, content creation, rendering and engineering applications. It runs Windows 11 and combines a 3.7GHz Intel Xeon W-2135 six-core processor with 16GB of DDR4 ECC memory. A 250GB NVMe SSD and a 2TB SATA drive provide fast boot and ample project storage. The NVIDIA Quadro P1000 with 4GB GDDR5 drives up to four displays via Mini DisplayPort 1.4.

Suited for CAD and multi-display setups

This configuration suits users who need certified professional graphics for CAD, rendering and multi-monitor workflows with ECC memory reliability. The four-channel DDR4 architecture and onboard RAID 0/1/5/10 support help with data-heavy tasks. Buyers who need more than 16GB of installed memory or a higher-tier GPU for intensive 3D simulation should consider other configurations.

16GB DDR4 ECC memory installed

The system arrives with 16GB of DDR4 ECC memory across eight DIMM slots running in four-channel mode up to 2666MHz. This installed capacity determines immediate multitasking headroom for professional applications. The motherboard supports greater total capacity, but the shipping configuration is fixed at 16GB unless upgraded after purchase.

How it compares

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

Price $411.99
Cheaper than about 91% of the 1,534 comparable items (median $2,906.49).
Installed RAM 16 GB
Lower than about 96% of the 1,387 comparable items (median 128 GB).
Video RAM 4 GB
Lower than about 70% of the 160 comparable items (median 8 GB).

Specifications

Product
Brand nameHP
Product lineZ Series
Model nameZ4 G4
Product typeTower
Processor
ProcessorIntel Xeon
Chipset750 W
Max supported CPUs1
Memory
Installed RAM16 GB
Type of memoryDDR4
Maximum RAM capacity16 GB
Memory slot count8
Storage
Installed SSD250 GB
Supported RAID levelsRAID 0/1/5/10
Maximum storage1
Optical driveDVD +/- RW
Graphics
Video RAM4 GB
Graphics chipNVIDIA Quadro P1000
Ports & slots
Network ports2 x Ports
Expansion card slotsSlot 1: PCI Express Gen3 x16 (from CPU), Slot 2: PCI Express Gen3 x4 (from PCH) with open-ended connector*, Slot 3: PCI Express Gen3 x16 (from CPU), Slot 4: PCI Express Gen3 x4 (from PCH) with open-ended connector*, Slot 5: PCI Express Gen3 x8 (from CPU) with open-ended
connector*, , and M.2 Slot 1: M.2 PCIe Gen 3 x4 (from CPU) up to 80 mm storage devices
Power
Hot-swap redundant PSUNo
Size & build
Product weight45 lb (20.4 kg)
Software
Operating systemWindows 11 Pro

Other versions of this model

5 more in the same range

Questions about this item

Does the workstation require a separate display cable for the Quadro P1000 Mini DisplayPort 1.4 outputs?

Yes, the graphics card provides four Mini DisplayPort 1.4 connectors, so a compatible Mini DisplayPort cable or adapter is needed for each monitor.

Can the existing 250GB NVMe and 2TB SATA drives remain installed when adding more storage?

The chassis includes two internal 3.5-inch bays and two external 5.25-inch bays, allowing additional drives to be fitted alongside the installed NVMe M.2 SSD and 2TB SATA drive.

How can I verify the 16GB DDR4 ECC memory is running in four-channel mode after setup?

Open Task Manager or a hardware utility and confirm the memory speed reads 2666MHz with all four channels populated across the eight DIMM slots.

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