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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

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

How it compares

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

Price $3,271.99
Typical for this category: the median of 1,534 items is $2,906.49.
Installed RAM 16 GB
Lower than about 96% of the 1,387 comparable items (median 128 GB).
Video RAM 16 GB
Higher than about 70% 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 RAM16 GB
Graphics chipNVIDIA RTX 5000
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

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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