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Large black tower workstation with DVD drive slot

HP

HP Z8 G4 Tower Workstation 2x Xeon Gold 6148 20-Core 2.4GHz 16GB DDR4 2TB NVMe 2x Quadro P4000

SKU CH-J1NV-MM8WZ

Dual 20-core Xeon Gold processors and twin Quadro P4000 GPUs power demanding 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 2 x NVIDIA Quadro P4000

  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.4 GHz for heavy compute
  • Twin Quadro P4000 GPUs provide 16 GB video memory for professional visualisation
  • 2 TB NVMe storage gives fast data access for large project files
  • 16 GB DDR4-2666 RAM with 24 slots supports expansion to 3 TB
  • Windows 10 Pro pre-installed for immediate professional software compatibility

Dual Xeon Gold 6148 Workstation

The HP Z8 G4 tower workstation arrives new with two Intel Xeon Gold 6148 processors, each running at 2.40 GHz with 20 cores for 40 total threads. It includes 16 GB of DDR4 PC4-2666 memory across 24 slots and a 2 TB M.2 NVMe 2280 TLC drive. Dual NVIDIA Quadro P4000 GPUs provide 16 GB of combined video memory for professional visualisation workloads.

Suited For And Not Suited For

This system suits professionals who need dual-socket compute density and certified professional graphics for 3D rendering, simulation or video editing in a tower form factor. Buyers who require higher installed memory capacity or additional GPU accelerators should look elsewhere. The platform supports a maximum of two processors and the current configuration occupies both sockets.

Deciding Specification

The defining specification is the dual 20-core Xeon Gold 6148 configuration delivering 40 threads at a base frequency of 2.40 GHz. This CPU foundation determines the workstation's capacity for heavily threaded professional applications and governs the memory bandwidth available across the 24 DDR4 slots.

Highlights

  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.4 GHz for heavy compute
  • Twin Quadro P4000 GPUs provide 16 GB video memory for professional visualisation
  • 2 TB NVMe storage gives fast data access for large project files
  • 16 GB DDR4-2666 RAM with 24 slots supports expansion to 3 TB
  • Windows 10 Pro pre-installed for immediate professional software compatibility

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 Type2 x NVIDIA Quadro P4000
Video Memory16GB
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

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Questions about this item

What comes in the box and what must I buy separately?

The unit ships with two Xeon Gold 6148 processors, 16 GB DDR4 memory, a 2 TB NVMe drive, two Quadro P4000 cards with 16 GB video memory, a DVD writer and Windows 10 Pro. Additional DDR4 modules up to 3 TB total and extra storage drives are purchased separately.

Should I choose the 16 GB DDR4 configuration or add more memory now?

The workstation has 24 DDR4 slots and supports up to 3 TB. The installed 16 GB uses only a few slots, leaving room to expand later. Add modules now if your workloads — such as large simulations or 8 K editing — regularly exceed 16 GB.

What does the 2.4 GHz Xeon speed mean for real rendering and simulation tasks?

Each of the two 20-core Xeon Gold 6148 CPUs runs at 2.40 GHz, giving 40 cores and 80 threads total. That core count lets the Z8 G4 distribute 3D rendering, complex simulations and AI training across many threads, reducing frame times and iteration cycles compared with lower-core alternatives.

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