Micron has introduced a 512GB DDR5 registered DIMM, the largest of its kind, leveraging advanced stacking technology to support high-capacity, energy-efficient server applications for AI, analytics, and large-scale databases.
Micron has demonstrated a 512GB DDR5 registered dual in-line memory module across multiple server platforms, a step it says is aimed at AI systems, analytics engines and other workloads that are increasingly constrained by memory capacity rather than raw compute. The company describes it as the first DDR5 module of this size, and says it can operate at up to 9,200 MT/s.
The main appeal is density. Micron says the module uses advanced vertical interconnect packaging, which stacks multiple DRAM dies inside each package and links them with through-silicon vias. That approach raises capacity without changing the physical footprint of the module, allowing server makers to increase total memory per system while preserving compatibility with existing architectures.
Micron says a 24-slot dual-socket server fitted with these modules could hold as much as 12TB of DDR5 memory. In the company’s view, that matters for large language models, agentic AI, real-time inference and memory-heavy database or caching applications, where keeping more data in main memory can reduce traffic to slower storage layers and improve throughput.
The company also claims a meaningful power advantage. It says the 512GB module uses more than 60% less operating power than an arrangement built from four 128GB DDR5 RDIMMs, which Tom’s Hardware reported as around 16W versus 44.2W for the equivalent capacity. Micron says it is working with AMD and Intel to validate the module on next-generation platforms, with volume production expected in the second half of 2027.
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