Micron Unveils 256 GB DDR5-8800 MCR DIMMs: Power-Packed Modules for Next-Gen Servers

Micron showcased its 256 GB DDR5-8800 MCRDIMMs at NVIDIA's GTC conference, designed for next-generation servers with Intel's Xeon Scalable 'Granite Rapids' processors, offering enhanced performance and increased DRAM content per server.

Increased performance with DDR5-8800 data rates
Higher DRAM content per server with 256 GB capacity
Specialized buffer allows for concurrent retrieval of data, doubling performance

Micron recently announced the sampling of its latest memory modules, the 256 GB multiplexer combined (MCR) DIMMs. These DDR5-based MCRDIMMs are designed for next-generation servers, specifically those powered by Intel’s Xeon Scalable ‘Granite Rapids’ processors. These processors are expected to support 12 or 24 memory slots per socket, allowing datacenter machines to have either 3 TB or 6 TB of memory. With DDR5-8800 data rates, these modules offer enhanced performance and increased DRAM content per server.

During nVidia’s GTC conference, Micron showcased its 256 GB DDR5-8800 MCRDIMMs, generating excitement among server vendors and customers who are eager to build new servers for the upcoming wave of AI accelerators. Tom’s Hardware managed to capture some images of these impressive memory modules.

The Micron 256 GB DDR5-8800 MCRDIMMs come in two variants: a taller module with 80 DRAM chips distributed on both sides, and a standard-height module using 2Hi stacked packages. Both versions are based on monolithic 32 Gb DDR5 ICs and cater to different server configurations. The standard-height MCRDIMM is designed for 1U servers. While the power consumption of the taller version aligns with expectations, around 20W, the power consumption of the module using 2Hi packages remains unknown but is expected to be slightly higher.

MCR DIMMs are dual-rank memory modules that feature a specialized buffer enabling both ranks to operate simultaneously. This buffer allows for concurrent retrieval of 128 bytes of data from both ranks per clock cycle, effectively doubling the performance compared to regular memory modules. Despite the increased complexity, MCR DIMMs enhance the performance and capacity of the memory subsystem without requiring additional memory modules. This simplifies the process of building server motherboards. These modules are expected to play a crucial role in enabling the next generation of servers to handle demanding applications, particularly in the AI field.

Sources: Tom’s Hardware, Micron

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Background Information

About Intel: Intel Corporation, a global technology leader, is for its semiconductor innovations that power computing and communication devices worldwide. As a pioneer in microprocessor technology, Intel has left an indelible mark on the evolution of computing with its processors that drive everything from PCs to data centers and beyond. With a history of advancements, Intel's relentless pursuit of innovation continues to shape the digital landscape, offering solutions that empower businesses and individuals to achieve new levels of productivity and connectivity.

About nVidia: NVIDIA has firmly established itself as a leader in the realm of client computing, continuously pushing the boundaries of innovation in graphics and AI technologies. With a deep commitment to enhancing user experiences, NVIDIA's client computing business focuses on delivering solutions that power everything from gaming and creative workloads to enterprise applications. for its GeForce graphics cards, the company has redefined high-performance gaming, setting industry standards for realistic visuals, fluid frame rates, and immersive experiences. Complementing its gaming expertise, NVIDIA's Quadro and NVIDIA RTX graphics cards cater to professionals in design, content creation, and scientific fields, enabling real-time ray tracing and AI-driven workflows that elevate productivity and creativity to unprecedented heights. By seamlessly integrating graphics, AI, and software, NVIDIA continues to shape the landscape of client computing, fostering innovation and immersive interactions in a rapidly evolving digital world.

Technology Explained

DDR5: DDR5 (Double Data Rate 5) is the next generation of memory technology for the computer industry. It is a modern day improvement on earlier DDR technologies, with faster speeds, greater bandwidth and higher capacities. DDR5 enables higher resolution, seamless gaming experiences and faster data transfer rates, making it an ideal choice for high-performance computing and 4K gaming. With its greater RAM compatibility, DDR5 provides faster buffering times and raised clock speeds, giving users an improved overall work system. DDR5 is also optimized for multi-tasking, allowing users to multitask without experiencing a significant drop in performance, increasing the productivity of digital tasks. As an ever-evolving technology, DDR5 is paving the way for the computer industry into a new and powerful era.

Xeon: The Intel Xeon processor is a powerful and reliable processor used in many computer systems. It is a multi-core processor that is designed to handle multiple tasks simultaneously. It is used in servers, workstations, and high-end desktop computers. It is also used in many embedded systems, such as routers and switches. The Xeon processor is known for its high performance and scalability, making it a popular choice for many computer applications. It is also used in many cloud computing applications, as it is capable of handling large amounts of data and providing high levels of performance. The Xeon processor is also used in many scientific and engineering applications, as it is capable of handling complex calculations and simulations.