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AMD Joins Consortia to Advance CXL, a New High-Speed Interconnect for Breakthrough Performance

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I’m pleased to announce AMD has joined other industry leaders in the Compute Express Link (CXL) Consortium. 

Compute Express Link (CXL) is an open industry standard interconnect offering high-bandwidth, low-latency connectivity between host processors, systems and devices such as accelerator cards, memory buffers, and smart I/O devices. Designed to address the increasing demands of high-performance computational workloads, CXL targets heterogeneous processing and memory systems across a range of high-performance computing applications by enabling coherency and memory semantics between processors and systems. This is increasingly important as processing data in Artificial Intelligence and Machine Learning requires a diverse mix of scalar, vector, matrix and spatial architectures across a range of accelerator options.

Since 2016 AMD has played a leadership role in driving three other new bus/interconnect standards, CCIX, OpenCAPI and Gen-Z.  Like CXL, these three efforts are driven by the need to create tighter coupling and coherency between processors and accelerators, and better exploit new and emerging memory/storage technologies in open, standards-based solutions.

While these different groups have been working to solve similar problems, each approach has its differences. As a long-standing supporter of open standards, we’re excited to join CXL and the possibilities presented as we work with other ecosystem leaders to address challenges we face as an industry.

If you’d like more information on CXL.  Please go to


Executive Vice President and  Chief Technology Officer

About the Author
Mark Papermaster is Chief Technology Officer and Executive Vice President of Technology and Engineering responsible for Advanced Micro Devices’ (AMD) technical direction and product development including microprocessor design, I/O and memory, system-on-chip (SOC) methodology, and advanced research. He led the re-design of engineering processes at AMD and the development of the award-winning “Zen” high-performance x86 CPU family, high-performance GPUs and the company’s modular design approach, Infinity Architecture. He also oversees Information Technology (IT) that delivers AMD’s compute infrastructure and services.