Micron Advances Memory Innovation With the World's First Ultra-Dense Module for Next-Generation Servers

Micron unveils a 512GB DDR5 RDIMM that targets multi-terabyte, power-efficient servers for AI and data-intensive workloads, with volume production slated for 2027.

Rhea-AI Summary

Micron (MU) has demonstrated what it describes as the world’s first 512GB DDR5 RDIMM for next-generation server platforms, with validation underway on multiple AMD- and Intel-based systems.

The module supports speeds up to 9,200 MT/s and uses advanced vertical stacking and through-silicon vias to reach ultra-high density, enabling up to 12TB of DDR5 DRAM in a 24-slot dual-socket server. Micron reports more than 60% lower operating power versus four 128GB RDIMMs and up to 1.4x higher performance for certain memory-bound analytics workloads compared with 256GB DDR5 configurations. Volume production of the 512GB RDIMMs is expected in the second half of 2027, aligned with customer demand.

Positive

• New 512GB DDR5 RDIMM enables up to 12TB DRAM in a dual-socket server
• Module targets speeds up to 9,200 MT/s for next-generation servers
• Operating power cut by over 60% versus four 128GB RDIMMs (16.0W vs 44.2W)
• Up to 1.4x performance gain for certain memory-bound analytics vs 256GB DDR5
• Validation in progress with AMD and Intel on future server platforms

Negative

• Volume production only expected in the second half of 2027, delaying broad availability

Key Figures

Module capacity: 512GB Memory speed: Up to 9,200 MT/s Operating power reduction: More than 60% +3 more

Module capacity

512GB

DDR5 RDIMM

Memory speed

Up to 9,200 MT/s

512GB DDR5 RDIMM

Operating power reduction

More than 60%

Compared with four 128GB RDIMMs

Server memory capacity

Up to 12TB

Single 24-slot dual-socket server

Performance improvement

Up to 1.4 times higher

Compared with 256GB DDR5 configurations for specified memory-bound workloads

Volume production timing

Second half of 2027

Expected 512GB RDIMM volume production

Key Terms

dram, ddr5, rdimm, through-silicon vias

4 terms

dram technical

"Micron's advanced DRAM packaging enables the 512GB DDR5 RDIMM"

A dram is a small, traditional unit used to measure either mass or liquid volume in manufacturing and pharmaceuticals — roughly 1.77 grams for a weight dram or about 3.7 milliliters for a fluid dram, similar to a small teaspoon or a couple of drops. Investors care because dram-based measurements affect drug dosing, packaging sizes, labeling compliance and raw-material usage, which in turn influence production costs, inventory counts and regulatory risk.

ddr5 technical

"successful demonstration of the world's first 512GB DDR5 module"

DDR5 is the latest generation of high-speed volatile memory used as the short-term workspace for computers and servers, like a faster, larger desk where a processor keeps information it’s actively using. It matters to investors because upgrades to DDR5 drive demand across chip makers, computer builders and data-centre operators, affecting sales, pricing power and product cycles; companies that lead in DDR5 production or adoption can gain a competitive and financial edge.

rdimm technical

"the 512GB DDR5 RDIMM across next-generation server platforms"

A RDIMM is a type of server memory module with a small built-in buffer that helps stabilize and coordinate data moving between the processor and many memory chips, making large amounts of memory more reliable and scalable. For investors, RDIMMs matter because they influence the cost, performance and reliability of data centers and enterprise hardware — factors that affect spending by cloud providers, server makers and companies that build or sell memory components, similar to how stronger building materials affect the cost and longevity of a construction project.

through-silicon vias technical

"interconnected by through-silicon vias (TSVs)"

Through-silicon vias are tiny vertical metal-lined holes drilled through silicon wafers to connect stacked layers of semiconductor chips, allowing electrical signals and power to pass directly between layers. They let manufacturers build faster, smaller and more energy-efficient processors and memory—like stacking floors of a building with an elevator shaft instead of running long wiring—and therefore influence product performance, manufacturing cost, yields and competitiveness across the semiconductor supply chain.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Micron's advanced DRAM packaging enables the 512GB DDR5 RDIMM to unlock data center performance with speeds up to 9,200 MT/s and reduced operating power by more than 60% 

BOISE, Idaho, Sept. 15, 2026 (GLOBE NEWSWIRE) -- Micron Technology, Inc. (Nasdaq: MU), today announced a major milestone in memory innovation with the successful demonstration of the world's first 512GB DDR5 module on multiple server platforms. The achievement reinforces Micron's leadership in high-performance, high-capacity server memory and provides enterprise data center and cloud customers with a path to support large and demanding AI, analytics, in-memory database and simulation-heavy workloads with greater efficiency. Leading semiconductor enablers, AMD and Intel, are both actively validating the module, which will deliver speeds up to 9,200 MT/s.

The module’s high capacity is possible due to Micron’s advanced vertical interconnect packaging innovations. This product vertically stacks DRAM dies interconnected by through-silicon vias (TSVs) to maximize density within individual DRAM packages while preserving the performance modern data center architectures demand. The module enables up to 12TB of DDR5 DRAM in a single 24-slot dual-socket server.

“Micron continues to set the pace for memory technology, delivering a new class of ultra-dense, high-performance server memory that helps customers keep larger datasets closer to the compute engines that need them,” said Raj Narasimhan, senior vice president and general manager of the Cloud Memory Business Unit at Micron. “A 512GB RDIMM enables multi-terabyte servers, supporting larger AI and database workloads, greater virtualization density and improved power efficiency, all within existing server footprints.”

Ecosystem partner validation
Micron is collaborating closely with leading ecosystem enablers to validate the 512GB DDR5 RDIMM across next-generation server platforms, ensuring broad compatibility and a smooth path to deployment.

“AMD solutions continue to advance data center performance, scalability and efficiency as AI and data-intensive workloads reshape infrastructure requirements,” said Amit Goel, corporate vice president, Compute and Enterprise AI Platform Solutions Engineering, AMD. “Our close engineering collaboration with Micron brings compute and memory innovation together to help customers realize the full value of AMD-powered platforms. Together, we’re enabling balanced, high-performance infrastructure for the growing scale and complexity of modern workloads.”

"The growth of AI and other data-intensive workloads is placing new demands on server infrastructure, making memory capacity and bandwidth increasingly important to overall system performance," said Karin Eibschitz Segal, general manager of platform and system engineering in Intel’s Data Center Group. “Intel is working closely with Micron to validate its 512GB DDR5 RDIMM and help enable future server platforms designed to meet the growing demands of next-generation data center workloads.”

Meeting the memory demands of data-intensive workloads
The rapid proliferation of large language models (LLMs), agentic AI, real-time inference and high-core-count CPU workloads is driving demand for greater server memory capacity, higher bandwidth and improved power efficiency. Micron 512GB RDIMMs address these demands by enabling larger datasets to remain resident in main memory, reducing reliance on slower storage tiers and minimizing costly data movement. The new 512GB RDIMM also improves efficiency, reducing operating power by more than 60% compared with four 128GB RDIMMs.¹

For memory-bound workloads such as Spark Support Vector Machines (SVM)-based data analytics, Micron 512GB RDIMMs can deliver up to 1.4 times higher performance compared to 256GB DDR5 configurations. The 512GB module also provides significant advantages for memory-intensive databases and caching platforms, including RocksDB and Redis, improving throughput, increasing concurrency and helping scale datasets more efficiently.

What the industry has to say about this future memory solution
“As data center workloads continue to grow, we are increasingly focused on how we can optimize the balance between compute, memory and efficiency across the stack," said Darrin Alves, chief information officer for Infrastructure Platforms at JPMorganChase. "Higher-capacity memory technologies like Micron’s 512GB RDIMMs will help enterprises support larger in-memory workloads, improve resource utilization and enhance the flexibility needed to scale modern computing environments."

Micron expects 512GB RDIMMs to be in volume production sometime in the second half of 2027 aligned to customer needs. For more information on Micron’s currently available data center solutions, visit the Micron data center memory webpage.

About Micron Technology, Inc.
Micron Technology, Inc., is a global leader in semiconductor memory and storage, powering AI and compute-intensive applications from cloud to edge. With a relentless focus on our customers, technology and product leadership, and manufacturing and operational excellence, Micron’s comprehensive portfolio of high-performance DRAM, NAND and NOR solutions deliver the speed, efficiency and scale today’s workloads demand, accelerating intelligence to enrich life for all. To learn more about Micron Technology, Inc. (Nasdaq: MU), visit micron.com.

Forward-Looking Statements
This press release contains forward-looking statements, including statements regarding Micron's 512GB DDR5 RDIMM, its expected performance, capabilities, benefits, validation and deployment, and the timing of volume production. These forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially. Please refer to the documents Micron files with the Securities and Exchange Commission, specifically its most recent Form 10-K and Form 10-Q. These documents contain and identify important factors that could cause actual results to differ materially from those contained in these forward-looking statements. These factors can be found at https://investors.micron.com/risk-factor. Although Micron believes that the expectations reflected in the forward-looking statements are reasonable, Micron cannot guarantee future results, levels of activity, or achievements. Micron is under no duty to update any of the forward-looking statements after the date of this press release to conform these statements to actual results.

© 2026 Micron Technology, Inc. All rights reserved. Information, products and/or specifications are subject to change without notice. Micron, the Micron logo and all other Micron trademarks are the property of Micron Technology, Inc. All other trademarks are the property of their respective owners.

©Intel, the Intel logo and other Intel marks are trademarks of Intel Corporation or its subsidiaries.

Micron Product and Technology Communications Contact:
Mengxi Liu Evensen
+1 (408) 444-2276
productandtechnology@micron.com 

Micron Investor Relations Contact:
Satya Kumar
+1 (408) 450-6199
satyakumar@micron.com 

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¹ Based on 16.0W for one 512GB module compared with the 44.2W total for four 128GB modules.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How does Micron’s 512GB DDR5 RDIMM achieve such high capacity?

The 512GB DDR5 RDIMM uses Micron’s advanced vertical interconnect packaging. The product vertically stacks DRAM dies connected by through-silicon vias (TSVs), which increases density within each DRAM package while preserving performance needed by modern data center architectures.

What server memory capacity can this module enable in a typical system?

In a 24-slot dual-socket server, Micron’s 512GB DDR5 RDIMMs can enable up to 12TB of DDR5 DRAM, allowing multi-terabyte server configurations for AI, database, analytics and simulation workloads.

Which workloads does Micron highlight as benefiting from the 512GB RDIMM?

Micron highlights large language models, agentic AI, real-time inference, high-core-count CPU workloads, Spark SVM-based data analytics, and memory-intensive databases and caching platforms such as RocksDB and Redis, where larger in-memory datasets, increased throughput and higher concurrency are expected benefits.

What efficiency advantages does the 512GB RDIMM offer over current configurations?

Micron reports that one 512GB RDIMM operates at about 16.0W, compared with a total of 44.2W for four 128GB RDIMMs, which it characterizes as a reduction in operating power of more than 60% for equivalent total capacity.

When does Micron expect to begin volume production of the 512GB DDR5 RDIMM?

Micron expects the 512GB DDR5 RDIMM to reach volume production in the second half of 2027, with timing aligned to customer needs.