Micron Announced First 512GB DDR5 Memory Module

The new server-grade memory module increases capacity and power efficiency for high-density computing.

Updated on Sept. 18, 2026 in Semiconductors

Isometric editorial illustration of a dense server memory module with stacked DRAM chips, representing high-capacity computing hardware. — Micron has unveiled the industry's first 512GB DDR5 RDIMM memory module, designed to increase computing capacity and power efficiency for data-intensive AI workloads. AI Illustration. Upload story photo >

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Micron has unveiled the world's first 512GB DDR5 RDIMM, a high-capacity memory module designed to support intensive AI workloads and virtualization. The hardware uses vertical DRAM stacking to consolidate memory density, allowing a dual-socket server to reach a total capacity of 12TB.

Why it matters

As AI models and in-memory databases demand higher memory throughput and lower power footprints, this module offers a solution that replaces multiple smaller units. The design improves hardware density without requiring additional server board space.

The module supports a maximum transfer rate of 9,200 MT/s and draws 16W of power. It achieves 512GB capacity through vertical stacking of DRAM dies connected by through-silicon vias.

The players

Micron

Micron is a global leader in semiconductor solutions and memory technology.

AMD

AMD is a major semiconductor company that develops high-performance processors and server platforms.

Intel

Intel is a multinational technology corporation that designs and manufactures central processing units for data centers.

The details

The 512GB RDIMM allows servers with 24 slots to reach a 12TB memory ceiling. It is intended to optimize performance for large-scale data processing tasks like Spark SVM workloads, where it offers a 1.4x efficiency increase.

Micron announced the new 512GB DDR5 RDIMM on September 15, 2026.
Volume production of the memory module is slated for the second half of 2027.

The Tech Race

This development follows the progression of the DDR5 JEDEC memory standard by pushing density limits beyond previous module capacities. It signals a move toward higher integration to keep pace with the massive memory requirements of modern AI server infrastructure.

Data center operators can anticipate lower power consumption and increased rack density for high-performance computing clusters. This consolidation potentially reduces long-term infrastructure costs for organizations managing large-scale AI and database environments.

The takeaway

This breakthrough highlights the industry push to optimize power consumption in large-scale data centers. As memory density increases, server architectures will become better equipped to handle the computational loads required by modern artificial intelligence applications.