SK Hynix DDR5-6400 RDIMM 96GB Server Memory

The SK Hynix 96GB DDR5-6400 RDIMM is a single-module server memory solution engineered to address the growing demand for mid-tier capacity density in high-core-count processor environments. Built on SK Hynix's advanced 1b-nm DRAM process node, this module packs 96GB onto a standard RDIMM form factor using a 3DS (Three-Dimensional Stacking) or high-density monolithic die configuration, operating at DDR5-6400 MT/s with on-die ECC and a registered clock driver (RCD) for signal integrity across multi-slot topologies. The 96GB capacity point is strategically significant for AMD EPYC Genoa and Turin platforms, where per-DIMM slot counts of 12 or 24 per socket allow system architects to achieve 1.15TB or 2.3TB per dual-socket node without resorting to the cost and thermal overhead of 128GB LRDIMMs.

From an electrical standpoint, the module operates at 1.1V VDD and implements DDR5's native on-module power management integrated circuit (PMIC), which improves voltage regulation granularity and reduces power noise compared to DDR4 architectures. The registered design (RDIMM) uses a single RCD chip to re-drive address and command signals, supporting up to two DIMMs per channel on compatible server platforms while maintaining DDR5-6400 rated speeds with appropriate BIOS tuning. SK Hynix's implementation includes Per-Bank Refresh (PBR) and Same Bank Refresh (SBR) modes to optimize refresh overhead at high densities, alongside Error Correcting Code at the die level (On-Die ECC) that scrubs single-bit errors transparently before data reaches the memory controller.

Launched in Q3 2025, this module targets enterprise compute deployments where the 96GB granularity closes the configuration gap between 64GB and 128GB modules. Server platforms such as AMD EPYC Turin (Zen 5) benefit directly, as the 12-channel memory architecture per socket allows configurations such as 12 × 96GB = 1.152TB per socket, offering 2.304TB per 2P node — a density previously unachievable with standard 64GB RDIMMs without mixing module capacities. The module is compliant with JEDEC DDR5 SDRAM standards and validated against JEDEC SPD/TS and RAS feature requirements for enterprise-class reliability.

Ideal for

• AMD EPYC Turin 2-socket HPC clusters requiring 2.3TB per node for large in-memory scientific simulation datasets without deploying LRDIMMs
• In-memory database servers running SAP HANA or Oracle In-Memory Database, where 96GB per slot enables terabyte-scale active datasets per node with reduced slot consumption
• Virtualization hosts on VMware vSphere or Red Hat OpenShift where balanced vCPU-to-RAM ratios demand a mid-range DIMM capacity that prevents memory over-provisioning relative to core count
• AI inference servers consolidating large language model weight matrices in DRAM for low-latency CPU-side prefetch and KV-cache operations alongside GPU accelerators
• High-density cloud data center rack deployments where per-server memory footprint optimization reduces total DIMM slot utilization and associated thermal output
• Financial services risk-analytics platforms performing real-time Monte Carlo simulations that require massive working-set memory with validated RAS features including on-die ECC and post-package repair (PPR)

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.