- Micron’s MRDIMMs offer up to 256GB capacity per module.
- They significantly improve memory bandwidth, capacity, and latency.
- They are compatible with Intel’s upcoming Xeon 6 Granite Rapids processors.
Micron has introduced its new multiplexed rank dual inline memory modules (MRDIMMs), marking a significant advancement in-memory technology. These modules are designed for environments requiring over 128GB of memory per DIMM slot.
By integrating multiple layers of memory modules and a data buffer, MRDIMMs operate at standard DDR5 speeds while accelerating data transfers to the host computer.
MRDIMMs surpass traditional TSV RDIMMs by delivering greater bandwidth, higher capacity, reduced latency, and better performance per watt.
They are ideal for virtualized environments, high-performance computing (HPC), and AI data center operations.
These modules are the first in Micron’s new memory module family and are compatible with Intel’s latest Xeon 6 Granite Rapids processors.
Benefits of MRDIMMs
Praveen Vaidyanathan, Vice President and General Manager of Micron’s Compute Products Group, highlighted the benefits of MRDIMMs: “Micron’s latest innovative main memory solution, MRDIMM, delivers the much-needed bandwidth and capacity at lower latency to scale AI inference and HPC applications on next-generation server platforms.”
MRDIMMs offer the same reliability, availability, and serviceability as RDIMMs, making them a flexible solution for enhancing performance.
Micron’s collaboration with industry partners ensures seamless integration into existing server infrastructures and smooth transitions to future computing platforms.
Technical Advantages
Adhering to DDR5 physical and electrical standards, MRDIMM technology enhances scalability in bandwidth and capacity per core.
These modules provide a 39% increase in effective memory bandwidth, over 15% improvement in bus efficiency, and up to 40% reductions in latency compared to RDIMMs.
Available in capacities ranging from 32GB to 256GB, MRDIMMs are designed for both standard and tall form factors, making them suitable for 1U and 2U high-performance servers.
An advanced thermal design lowers DRAM temperatures by up to 20 degrees Celsius, improving cooling efficiency and reducing overall energy consumption for memory-intensive tasks.
Future Prospects
Micron plans to begin volume shipping of MRDIMMs in the second half of 2024, aligning with Intel’s launch of the 128 P-core Granite Rapids-AP line.
This strategic timing positions Intel to reclaim the fastest CPU server title from AMD for the first time in a decade. Granite Rapids will be the first platform to support MRDIMMs at 8800MT/s on the host side.
