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Large black tower workstation with DVD writer slot and subtle HP branding

HP

HP Z8 G4 Workstation Dual Xeon Gold 6148 20-Core 2.4 GHz 16GB DDR4 2TB NVMe RTX 5000

SKU CH-NHPP-CP8QE

Tower workstation with dual 20-core Xeon Gold 6148 CPUs, 16 GB DDR4, 2 TB NVMe and RTX 5000 graphics

  • 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 5000

  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.40 GHz for heavy multi-thread workloads
  • NVIDIA RTX 5000 GPU with 16 GB video memory accelerates 3D rendering and AI tasks
  • 2 TB NVMe storage provides fast boot and project-file access
  • 16 GB DDR4-2666 RAM in a 24-slot chassis allows expansion up to 3 TB
  • DVD±RW drive and RAID 0/1/10 support simplify local backup and data redundancy

Dual Xeon Gold 6148 Tower

This HP Z8 G4 workstation pairs two 20-core Intel Xeon Gold 6148 processors at 2.40 GHz with 16GB of DDR4 memory and an NVIDIA RTX 5000 GPU. The tower chassis targets professionals running complex simulations, large-scale data analysis, or high-resolution video editing workloads.

Upgrade from single-socket systems

Moving from a single-processor platform doubles the core count to 40 threads and unlocks the Intel C622 chipset's full memory capacity of 3TB across 24 DIMM slots. The jump is worth it when render queues, simulation jobs, or dataset sizes exceed the memory bandwidth and parallel throughput of a single-socket machine.

2TB NVMe and 16GB VRAM headroom

The installed 2TB NVMe drive provides fast local storage for active project files, while the RTX 5000's 16GB video memory handles large textures and GPU-accelerated compute tasks. Memory-intensive workloads that exceed 16GB system RAM will require populating additional DDR4 slots to avoid paging bottlenecks.

Highlights

  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.40 GHz for heavy multi-thread workloads
  • NVIDIA RTX 5000 GPU with 16 GB video memory accelerates 3D rendering and AI tasks
  • 2 TB NVMe storage provides fast boot and project-file access
  • 16 GB DDR4-2666 RAM in a 24-slot chassis allows expansion up to 3 TB
  • DVD±RW drive and RAID 0/1/10 support simplify local backup and data redundancy

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 5000
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 size M.2 NVMe slot does the 2280 drive use?

The installed 2TB NVMe drive uses the M.2 2280 form factor and plugs directly into the motherboard.

How are the two Xeon Gold 6148 processors installed, and what step is often missed?

Both LGA 3647 sockets are populated; the common mistake is skipping the specific torque sequence for the CPU carrier screws.

When the 16GB DDR4 PC4-2666 memory needs expanding, what is the maximum capacity?

The system supports up to 3TB across 24 DIMM slots using registered DDR4 modules.

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