Micron memory expansion using CXL®

Flexible memory expansion for data-intensive workloads

Memory expansion that increases capacity, optimizes cost, and intelligently balances performance between compute and memory resources.
Speak with Micron today and secure up to 24% greater memory bandwidth per core.

Scale servers with high-capacity CXL protocol-based memory

Micron memory expansion using Compute Express Link® (the CXL protocol) enable server OEMs to scale, integrate and expand memory capacity for a multitude of application workloads.

Optimize performance beyond the direct-attach memory channels

CXL memory expansion means servers with higher memory capacity and lower latency to meet application workload demands.

Lower your Total Cost of Ownership (TCO)

CXL technology provides a greater utilization of compute and memory resources for bounded applications, reducing CapEx and OpEx.

Technology Enablement Program for Micron memory expansion using CXL

The Technology Enablement Program (TEP) for memory expansion using the CXL protocol offers a path into Micron to gain early access to technical information and support, electrical and thermal models, as well as memory products to aid in the design, development and introduction of next-generation computing platforms.

Micron’s perspective on the impact of CXL technology on DRAM bit growth rate

Modern compute architectures are prone to a phenomenon known as the “memory wall” problem. Compute Express Link provides the necessary architecture to bring balance to the compute and memory scaling gap. It is the basis for creating a new vector to achieve economically viable memory sharing solutions that will have an impact on DRAM bit growth rate.

Read the CXL impact on DRAM paper

Micron memory expansion: Enabling the next-generation memory-centric data center

CXL memory expansion provides increased memory capacity and bandwidth with low latency and memory cache coherency for heterogeneous compute processing.
Micron memory expansion modules support CXL 2.0 standards, providing flexible and scalable memory resources to match increasing processor core counts and data-intensive workload demands.

Featured CXL technology resources

CXL memory expansion with 5th Gen AMD EPYC™
This white paper demonstrates how integrating Micron CXL memory expansion boosts high-core system performance, powered by AMD CPUs, by meeting greater memory-per-core demands, significantly improving workloads like data analytics and large language models that are typically limited by memory constraints.
Micron Memory Expansion using CXL and AMD white paper

Accelerating HPC/AI workloads with CXL memory
This paper presents experimental work conducted by Micron and Intel, which examines the performance of HPC and AI workloads on the Intel® Xeon® 6 processor 6900P series paired with Micron CZ122 CXL.
CXL and Intel Xeon paper

CXL memory expansion: A closer look on actual platform
This white paper examines the rationale for CXL-based memory and demonstrates with AMD the value of CXL based memory. The paper details a number of performance tests completed using Micron memory expansion based on CXL and the AMD EPYC™ 9754 CPU and details the results.
Download white paper

Using HPC to solve the world’s largest challenges
Micron is helping CERN transform extraordinary amounts of data into insight for researchers exploring the origins of the universe. See how Micron's memory expansion modules based on the CXL protocol are providing capacity, flexibility, and bandwidth for seamless access to buffered data from multiple processors and compute accelerators.
CXL and CERN blog

Additional CXL memory resources

How CXL memory will aid in AI and large language models (LLMs) in solving new problems
Ryan Baxter Sr. Director, Product Management, Micron sits down with Patrick Moorhead and Daniel Newman of Six Five Insider Edition to discuss memory expansion using the CXL protocol, its role in AI, and next steps in development and deployment.
Watch video

How CXL will help overcome memory bandwidth challenges in the data center
Patrick Moorhead, Moor Insights and Strategy, sits down with Ryan Baxter to discuss the memory sharing benefits of CXL in the data center.
Watch video

Micron memory expansion for data-intensive workloads
See how Micron memory expansion modules supporting CXL, addresses system memory bottlenecks by delivering memory capacity and bandwidth expansion for emerging data-intensive applications and workloads.
Watch video

Micron enabling the next-generation scalable and flexible data center using CXL technology
Data centers are becoming more complex with increasing workload demands. Micron is shaping the future of the data center using CXL technology to provide flexible and scalable memory sharing and data center memory expansion.
CXL for data video

Frequently asked questions about CXL memory

What is CXL?

The CXL protocol (Compute Express Link) is a high-speed interconnect, industry-standard interface for communications between processors, accelerators, memory, storage, and other IO devices.

What are the three types of CXL protocol devices?

  1. CXL 1 device (CXL.io) - used for device initialization, link-up, enumeration, and device discovery.
  2. CXL 2 device (CXL.cache) - implements an optional coherent cache and host-managed device memory.
  3. CXL 3 device (CXL.mem) - used only for host-managed device memory.

What is the main advantage of CXL technology?

The key advantage of CXL technology is the expansion of the memory for compute nodes, filling the gap for data-intensive applications that require high bandwidth, capacity, and low latency.

What is Micron's perspective on CXL memory expansion?

Micron’s commitment to CXL technology enables customers and suppliers to drive the ecosystem for memory innovation solutions.

How will CXL architecture change the data center?

CXL memory expansion will change how traditional rack and stack architecture of servers and fabric switches are deployed in the data center, moving towards a more flexible memory architecture.