On April 23, 2025, SK Hynix announced the successful completion of customer verification for its DDR5 96GB modules built on the CXL 2.0 standard.
Compared with existing DDR5 modules, these new 96GB products deliver a 50% increase in capacity and a 30% boost in bandwidth when deployed in server systems, achieving data processing speeds of up to 36GB per second. These improvements help significantly reduce the total cost of ownership for data center operations.
Following the verification of the 96GB modules, SK Hynix is collaborating with customers to validate its upcoming 128GB modules, featuring fifth-generation 10nm (1b) 32Gb DDR5 DRAM. These modules offer an excellent performance-to-power ratio and demonstrate superior energy efficiency. The company is accelerating the verification process to expand its CXL product portfolio and ensure timely supply for customer demands.
Beyond product development, SK Hynix is actively fostering the CXL ecosystem. The company independently developed the Heterogeneous Memory Software Development Kit (HMSDK), which was successfully applied to Linux, the world’s largest open-source operating system, in September last year. This software significantly enhances the performance of CXL-based systems.
Kang Wook-sung, Vice President in charge of next-generation product planning, stated:
“SK Hynix is dedicated to delivering diverse solutions that overcome the limitations of conventional systems, including high costs and limited scalability. Through our concept of ‘Optimal Innovation,’ we aim to provide versatile solutions that meet evolving customer demands while maximizing performance and efficiency.”
Notes for reference:
- CXL (Compute Express Link): A next-generation interconnect that efficiently links CPU, GPU, and memory, supporting high-capacity, ultra-fast computing via the PCIe interface and memory pooling.
- Total Cost of Ownership (TCO): The total cost incurred during a product or service lifecycle, including purchase, operation, maintenance, and upgrades.
- Performance per Watt: Measures data processing efficiency relative to power consumption.
- Heterogeneous Memory Software Development Kit (HMSDK): SK Hynix’s proprietary tool that optimizes heterogeneous memory systems, including CXL memory.
- Optimal Innovation: SK Hynix’s 2024 strategy to optimize system performance through innovative products like CXL and PIM for AI-era applications.
