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Black HP Z4 G4 tower workstation with DVD drive visible

HP

HP Z4 G4 Xeon W-2135 3.7GHz 32GB DDR4 1TB NVMe 2TB HDD Quadro P1000 Windows 11 workstation

SKU CH-R503-CNGQ2

Tower workstation with a 6-core Xeon W-2135 at 3.7GHz, 32GB DDR4, 1TB NVMe plus 2TB HDD, and Quadro P1000 4GB graphics for CAD and rendering

  • ProcessorIntel Xeon
  • Installed RAM32 GB
  • Video RAM4 GB
  • Installed SSD1 TB
  • Chipset750 W
  • Type of memoryDDR4

Installed Memory Size 32GB

SSD (Installed) 1TB

HDD 2TB

  • Xeon W-2135 6-core 3.7 GHz handles demanding CAD and rendering workloads
  • 32 GB DDR4 ECC memory enables smooth multitasking on large projects
  • 1 TB NVMe plus 2 TB HDD gives fast boot and ample project storage
  • Quadro P1000 4 GB GDDR5 drives professional 3D and multi-display setups
  • Windows 11 pre-installed for immediate out-of-box productivity

Professional workstation for design and engineering

The HP Z4 G4 tower workstation pairs a six-core Intel Xeon W-2135 processor at 3.7GHz with 32GB of DDR4 ECC memory and an NVIDIA Quadro P1000 graphics card with 4GB GDDR5. It ships with a 1TB NVMe SSD and a 2TB SATA hard drive, plus Windows 11 pre-installed. The platform targets professional workloads such as CAD, content creation, rendering and data-heavy applications.

Upgrade from consumer desktops or older workstations

The Xeon W-2135 delivers twelve threads via hyper-threading, while four-channel DDR4 up to 2666MHz and ECC support improve data integrity for large projects. RAID 0, 1, 5 and 10 on the onboard SATA 6.0 Gb/s controller add redundancy or speed for local storage. The jump is worth it when ECC memory, certified drivers and multi-display Mini DP 1.4 outputs become daily requirements.

Sustained load behaviour with 750W power

The 750W supply feeds the CPU, Quadro P1000 and up to two PCI Express x16 Gen 3 graphics cards without hot-plug support. Four-channel memory bandwidth and the NVMe boot drive keep throughput steady during long renders or simulations. Eight DIMM slots allow expansion to 512GB total memory, while two internal 3.5-inch bays with acoustic rails and two external 5.25-inch bays provide room for additional drives.

How it compares

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

Price $596.99
Cheaper than about 84% 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).
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 RAM32 GB
Type of memoryDDR4
Maximum RAM capacity32 GB
Memory slot count8
Storage
Installed SSD1 TB
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

What internal drive bays does the HP Z4 G4 tower provide for adding storage?

The chassis includes two internal 3.5-inch bays with pre-installed acoustic dampening rails, plus two external 5.25-inch bays and one dedicated 9.5mm slim optical drive bay.

How is the NVIDIA Quadro P1000 installed in the workstation, and what step is often missed?

The card seats in a PCI Express x16 Gen 3 slot and draws power from the 750W supply; the step often missed is connecting the required auxiliary power cable from the PSU to the graphics card.

What memory upgrades does the Z4 G4 support later, and how many slots are free?

The system uses DDR4 ECC memory up to 2666MHz across eight DIMM slots in a four-channel layout; with 32GB already installed, the remaining slots can accept additional modules up to the 512GB maximum.

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