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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

  • TypeTower
  • Redundant Hot-swap PowerNo
  • CPU TypeIntel Xeon Gold
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647
  • Number of CPU Cores20-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.

Highlights

  • 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

Specifications

BrandHP
SeriesZ8 G4
TypeTower
Redundant Hot-swap PowerNo
CPU TypeIntel Xeon Gold
CPU Speed2.40 GHz
CPU SocketLGA 3647
Number of CPU Cores20-Core Processor
# of Processors Installed2
MAX Processors2
ChipsetIntel C622
Installed Memory Size16GB
Memory TypePC4-2666
Max Memory Capacity3TB
Number of Memory Slots24
SSD (Installed)2TB
Raid LevelRAID 0/1/10
Media DrivesDVD +/- RW
GPU TypeNVIDIA RTX A6000
Video Memory48 GB
LAN Ports2 x Ports
Expansion 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
Expansion Bays(4) Internal 3.5" bays (all 4 include acoustic dampening rail assemblies). (2) External 5.25" Bays
Operating SystemWindows 10 Pro 64

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

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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