Viking Technology DDR4 NVDIMM — Persistent Memory in a Standard DIMM Slot

Specifications

Overview

Persistent memory has been promised in several form factors over the years, and almost all of them asked the customer to accept something new: a different slot, a different software model, or both. A DDR4 NVDIMM takes the opposite approach. It is a standard RDIMM module that happens to hold its contents through a power loss, so an existing DDR4 platform can gain persistence by changing parts rather than changing architecture.

Viking Technology builds these modules in 8GB, 16GB and 32GB user capacities on a DDR4 interface, with a custom module controller and an energy subsystem sized to the module's capacity. Performance is well beyond what the term suggests: up to 12 million read IOPS and 10 million write IOPS with 2000 MB/s sustained read and write, and endurance is effectively unlimited in DWPD terms because the design does not impose a normal-use flash write-wear limit.

The interesting property for industrial and edge systems is the combination of speed and survivability. A database journal, a write-back cache, a controller's in-flight state or a machine-learning pipeline's checkpoint can sit in memory at DRAM-class access times and still be there after an uncontrolled shutdown. In a remote or sealed enclosure where a service visit is expensive, that is a materially different reliability position from a conventional SSD-backed journal.

Mechanically the module is a normal RDIMM at 133.35mm x 3.95mm x 31.25mm, rated for 0°C to 70°C operation, 1000G shock and 2.16 gram vibration across the 5 to 700Hz band, with FCC, CE and TUV compliance.

QS Compute sources Viking NVDIMM modules against project requirements — densities, screened grades and energy-subsystem configurations are specified per deployment.

Key Benefits

Persistence in a standard DIMM slot — no new slot type or storage API. Up to 12M read IOPS at DRAM-class latency with 2000 MB/s sustained throughput. PowerFail protection via a capacity-matched energy subsystem. Unlimited DWPD endurance for write-heavy journal and cache roles. Industrial environmental screening — 0–70°C, 1000G shock, MIL-grade vibration figures.

Applications

Write-back cache and journal roles in industrial controllers · in-flight state retention for autonomous and medical systems · edge database and message-broker persistence · telemetry buffering where a power cut cannot lose the last interval · checkpoint storage for edge machine-learning pipelines

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