SK hynix announces 96GB DDR5 CXL 2.0 memory expansion solution

Published: 2nd Aug 2022, 06:56 GMT   Comments

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SK hynix Develops DDR5 DRAM CXLTM Memory to Expand the CXL Memory Ecosystem

  • SK hynix develops its first DDR5 DRAM-based CXL sample
  • Expandable CXL memory to secure the technology accessibility by development of dedicated HMSDK
  • SK hynix to expand the CXL memory ecosystem while strengthening its presence in the next-gen memory solutions market

SK hynix Inc. has developed its first DDR5 DRAM-based CXL (Compute Express Link) memory samples and strengthened its presence in next-generation memory solutions market. The form factor of the sample is EDSFF (Enterprise & Data Center Standard Form Factor) E3.S and it supports PCIe 5.0 x8 Lane, uses DDR5 standard DRAM and is equipped with CXL controllers.

CXL1), which is based on PCIe (Peripheral Component Interconnect Express)2), is a new standardized interface that helps increase the efficiency of utilizing CPUs, GPUs, accelerators, and memory. SK hynix has participated in the CXL consortium from an early stage, and is looking to secure CXL memory market leadership.

Expandable CXL Memory to Begin Mass Production in 2023

The essential point of the CXL memory market is expandability. The CXL memory allows for flexible memory expansion compared to current server market, where the memory capacity and performance are fixed once the server platform is adopted. CXL also has high growth potential as it is an interface spotlighted for high performance computing systems such as AI and big data related applications.

The first CXL memory device developed by SK hynix is a 96GB product composed of 24Gb DDR5 DRAMs based on 1anm, which is the latest tech node. The company expects high customer satisfaction of this product with flexible configuration of bandwidth and capacity expanded cost-efficiently.

“I see CXL as a new opportunity to expand memory and create a new market. We aim to mass-produce CXL memory products by 2023, and will continue to develop cutting-edge DRAM technologies and advanced packaging technologies to launch various CXL-based bandwidth/capacity expandable memory solution products.”

— said Uksong Kang, Head of DRAM Product Planning explaining SK hynix’s CXL memory deployment strategy.

Various Collaboration Plans to Expand the CXL Memory Ecosystem

“Dell has been at the forefront of developing the CXL and EDSFF ecosystems, driving technology standards through the CXL and SNIA consortiums, and working closely with our partners on CXL product requirements to meet future workload demands. The SK hynix EDSFF E3.S form factor CXL memory module is an example of the innovative products that customers will be able to deploy to meet their growing memory needs,”

— said Stuart Berke, Vice President and Fellow at Dell’s Infrastructure Solutions Group.

Dr. Debendra Das Sharma, Intel Senior Fellow and co-GM of Memory and I/O Technologies at Intel added,

“CXL plays an essential role in extending memory for data center systems to evolve. We look forward to building and expanding the CXL memory ecosystem, as well as quickly developing technology standards through the CXL consortium, by collaborating with partners like SK hynix.”

“AMD is excited about the possibilities of workload performance acceleration with memory expansion using CXL technology. We look forward to collaborating with SK hynix on the development and validation of CXL as the industry shifts to a more dynamic and flexible memory infrastructure,”

— said Raghu Nambiar, Corporate Vice President of Data Center Ecosystems and Solutions at AMD.

“CXL is a key technology that will be critical in optimizing memory systems in the future, and we are actively working with SK hynix in CXL memory design and verification to promote the rapid development of the CXL memory ecosystem,”

— said Christopher Cox, Vice President of Technology at Montage Technologies.

Securing Technology Accessibility by Developing HMSDK dedicated to CXL Memory

SK hynix also developed the Heterogeneous Memory Software Development Kit (HMSDK)3) exclusively for CXL memory devices. The kit will include features to improve system performance and monitor the systems while running various workloads. The company plans to distribute it as an open source in the fourth quarter of 2022. It is expected that end users such as software developers will be able to utilize SK hynix’s CXL memory more effectively.

The company prepared a separate sample for evaluation to help customers evaluate it with ease. As there is currently no server which supports EDSFF E3.S x8 Lane, SK hynix replaced the dedicated samples’ EDSFF pins with PCIe to support customers install the samples to existing PCIe slots.

SK hynix is planning to exhibit the product in upcoming events, beginning with Flash Memory Summit in early August, Intel Innovation at the end of September and Open Compute Project (OCP) Global Summit in October, while scheduling to demonstrate a demo with HMSDK as well. The company will actively deploy CXL memory related business to provide customers with the memory products they need in a timely manner.


footnotes


1) CXL (Compute Express Link): Next-generation interface to utilize high performance computing system efficiently

2) PCIe (Peripheral Component Interconnect Express): Serial-structured high-speed input/output interface used in the main boards of digital devices.

3) HMSDK (Heterogeneous Memory Software Development Kit): A software development kit that allows different grades of memory to be operated in one system


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