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Large silver tower workstation with DVD drive slot

HP

HP Z8 G4 Workstation — 2× Xeon Gold 6148 20-core 2.4 GHz, 16 GB DDR4, 2 TB NVMe, RTX A6000 48 GB

SKU CH-4TYA-745WH

Dual 20-core Xeon Gold 6148 processors, 16 GB DDR4, 2 TB NVMe and RTX A6000 48 GB GPU for rendering, simulation and AI workloads

  • ProcessorIntel Xeon Gold
  • Installed RAM16 GB
  • Video RAM48 GB
  • Installed SSD2 TB
  • ChipsetIntel C622
  • Processor core count20-Core Processor

Graphic Type NVIDIA RTX A6000

  • Dual 20-core Xeon Gold 6148 CPUs deliver 40 threads at 2.40 GHz
  • RTX A6000 GPU with 48 GB video memory handles large 3D and AI workloads
  • 2 TB NVMe storage provides fast data access for projects
  • 24 DDR4 slots support up to 3 TB memory for scaling
  • Windows 10 Pro pre-installed for immediate professional use

Dual Xeon Gold 6148 workstation

The HP Z8 G4 tower workstation delivers dual Intel Xeon Gold 6148 processors, each with 20 cores at 2.40 GHz, paired with an NVIDIA RTX A6000 graphics card holding 48 GB video memory. It ships with 16 GB DDR4 PC4-2666 memory and a 2 TB NVMe 2280 drive, running Windows 10 Pro.

Suited for heavy GPU compute and large-model work

This configuration targets professionals who need maximum single-GPU memory for 3D rendering, 8K video editing, complex simulation or AI model training. Buyers needing more than 16 GB system memory out of the box or requiring redundant hot-swap power supplies should consider other configurations.

48 GB RTX A6000 GPU memory

The 48 GB frame buffer on the RTX A6000 is the decisive spec; it allows large datasets, high-resolution textures and deep learning models to reside entirely in GPU memory. If your workload fits within smaller GPU memory, a lower-tier card will reduce cost.

How it compares

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

Price $6,614.99
Pricier than about 57% 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 48 GB
Higher than about 91% of the 160 comparable items (median 8 GB).

Specifications

Product
Brand nameHP
Product lineZ8 G4
Product typeTower
Processor
ProcessorIntel Xeon Gold
Processor core count20-Core Processor
Processor socketLGA 3647
ChipsetIntel C622
Processor speed2.4 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM16 GB
Type of memoryPC4-2666
Maximum RAM capacity3 TB
Memory slot count24
Storage
Installed SSD2 TB
Supported RAID levelsRAID 0/1/10
Optical driveDVD +/- RW
Drive bays(4) Internal 3.5 in bays (all 4 include acoustic dampening rail assemblies). (2) External 5.25 in Bays
Graphics
Video RAM48 GB
Graphics chipNVIDIA RTX A6000
Ports & slots
Network ports2 x Ports
Expansion card slotsSlot 1: PCIe Gen3 x4 - Transforms to PCIe Gen3 x8 when 2nd CPU is installed, Slot 2: PCIe Gen3 x16, Slot 3: PCIe Gen3 x16 - Available ONLY when 2nd processor is installed, Slot 4: PCIe Gen3 x16, Slot 5: PCIe Gen3 x4, Slot 6: PCIe Gen3 x16 - Available ONLY when 2nd processor is installed, and Slot 7: PCIe Gen3 x4
Power
Hot-swap redundant PSUNo
Software
Operating systemWindows 10 Pro 64

Other versions of this model

5 more in the same range

Questions about this item

How can I verify the dual Xeon Gold 6148 processors are running at 2.40 GHz after setup?

Open Task Manager or BIOS to confirm both 20-core CPUs show 2.40 GHz base clock under load.

What components come in the box and which upgrades need separate purchase?

Includes 2× Xeon Gold 6148, 16 GB DDR4, 2 TB NVMe, RTX A6000 48 GB, DVD±RW, Windows 10 Pro; extra DDR4 modules and NVMe drives sold separately.

Which memory configuration should I choose for the 24-slot motherboard?

Start with the installed 16 GB DDR4-2666 and add matching modules up to the 3 TB maximum for your workload.

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