Samsung DDR5 RDIMM 96GB 6400MT/s
Brand: Samsung | Category: Memory (RAM)
SKU: SAMS-M321RYGA0B40CWMHM | Part #: M321RYGA0B40-CWMHM | MPN: M321RYGA0B40-CWMHM
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About the Samsung DDR5 RDIMM 96GB 6400MT/s
The Samsung DDR5 RDIMM 96GB 6400MT/s is engineered for next-generation server platforms built on Intel Xeon Scalable (Granite Rapids) and AMD EPYC (Genoa/Bergamo) processors with DDR5 memory controllers. Fabricated using Samsung's advanced 1z/1a-nm DRAM process node, this 96GB registered DIMM achieves a raw transfer rate of 6400 MT/s per channel, delivering up to 51.2 GB/s of peak theoretical bandwidth per module — a dramatic leap over DDR4 predecessors. The registered buffer architecture ensures signal integrity across densely populated memory channels, making it well-suited for multi-DIMM-per-channel configurations in dual- and quad-socket enterprise servers.
Ideal for
- Large language model (LLM) inference servers requiring terabyte-scale memory pools to hold model weights and KV caches entirely in DRAM
- High-density VMware vSphere or Red Hat OpenShift virtualization hosts consolidating hundreds of VMs per two-socket node
- SAP HANA and Oracle Database in-memory deployments where the entire working dataset must reside in RAM for sub-millisecond query response
- AI training preprocessing pipelines and data-loading stages where fast DRAM bandwidth reduces GPU starvation on PCIe Gen5 platforms
- High-performance computing (HPC) nodes running memory-intensive simulations such as computational fluid dynamics, finite element analysis, and molecular dynamics
- Cloud service provider bare-metal infrastructure requiring maximum memory density per rack unit to optimize power and space efficiency
Technical specifications
| Manufacturer | Samsung |
| Part Series | DDR5 RDIMM |
| Capacity | 96GB |
| Transfer Rate | 6400 MT/s |
| Peak Bandwidth | 51.2 GB/s |
| DDR Generation | DDR5 |
| Module Type | RDIMM (Registered DIMM) |
| Form Factor | 288-pin DIMM |
| Data Bus Width | 64-bit (72-bit with ECC) |
| Error Correction | ODECC (On-Die ECC) + DIMM-level ECC |
| Voltage | 1.1V |
| CAS Latency | CL46 (6400 MT/s timing class) |
| Rank Configuration | 2Rx4 (Dual Rank, x4 organization) |
| Die Technology | Samsung 1a-nm advanced DRAM process |
| Ranks x Width | 2Rx4 |
| Operating Temperature | 0°C to 85°C (standard JEDEC commercial) |
| JEDEC Compliance | JEDEC DDR5 JEDEC SPD 5.0 compliant |
| Platform Compatibility | Intel Xeon Scalable (Granite Rapids / Sapphire Rapids HBM), AMD EPYC 9004 (Genoa/Bergamo) |
| Registered Clock Driver | RCD (Register Clock Driver) Gen2 integrated |
| Power Management | PMIC (Power Management Integrated Circuit) on-module |
| Launch Quarter | 2025 Q2 |
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Technical Specifications
| Brand | Samsung |
| Category | Memory (RAM) |
| SKU | SAMS-M321RYGA0B40CWMHM |
| Part Number | M321RYGA0B40-CWMHM |
| Condition | New |
| Part Series | DDR5 RDIMM |
| Capacity | 96GB |
| Transfer Rate | 6400 MT/s |
| Peak Bandwidth | 51.2 GB/s |
| DDR Generation | DDR5 |
| Module Type | RDIMM (Registered DIMM) |
| Form Factor | 288-pin DIMM |
| Data Bus Width | 64-bit (72-bit with ECC) |
| Error Correction | ODECC (On-Die ECC) + DIMM-level ECC |
| Voltage | 1.1V |
| CAS Latency | CL46 (6400 MT/s timing class) |
| Rank Configuration | 2Rx4 (Dual Rank, x4 organization) |
| Die Technology | Samsung 1a-nm advanced DRAM process |
| Ranks x Width | 2Rx4 |
| Operating Temperature | 0°C to 85°C (standard JEDEC commercial) |
| JEDEC Compliance | JEDEC DDR5 JEDEC SPD 5.0 compliant |
| Platform Compatibility | Intel Xeon Scalable (Granite Rapids / Sapphire Rapids HBM), AMD EPYC 9004 (Genoa/Bergamo) |
| Registered Clock Driver | RCD (Register Clock Driver) Gen2 integrated |
| Power Management | PMIC (Power Management Integrated Circuit) on-module |
| Launch Quarter | 2025 Q2 |
Frequently Asked Questions about Samsung DDR5 RDIMM 96GB 6400MT/s
What does the Samsung DDR5 RDIMM 96GB 6400MT/s do?
The Samsung DDR5 RDIMM 96GB 6400MT/s is enterprise server memory designed for ECC-protected workloads — virtualization hosts, database servers, analytics platforms, and AI training rigs. Samsung validates this module against major server vendor compatibility matrices.
What does the Samsung DDR5 RDIMM 96GB 6400MT/s do?
The Samsung DDR5 RDIMM 96GB 6400MT/s is enterprise server memory designed for ECC-protected workloads — virtualization hosts, database servers, analytics platforms, and AI training rigs. Samsung validates this module against major server vendor compatibility matrices.
What does the Samsung DDR5 RDIMM 96GB 6400MT/s do?
The Samsung DDR5 RDIMM 96GB 6400MT/s is enterprise server memory designed for ECC-protected workloads — virtualization hosts, database servers, analytics platforms, and AI training rigs. Samsung validates this module against major server vendor compatibility matrices.
What are the headline specs of the Samsung DDR5 RDIMM 96GB 6400MT/s?
Key specifications for the Samsung DDR5 RDIMM 96GB 6400MT/s: new condition; manufacturer Samsung; part series DDR5 RDIMM; capacity 96GB; transfer rate 6400 MT/s; peak bandwidth 51.2 GB/s; ddr generation DDR5. Manufacturer part number M321RYGA0B40-CWMHM. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
What are the headline specs of the Samsung DDR5 RDIMM 96GB 6400MT/s?
Key specifications for the Samsung DDR5 RDIMM 96GB 6400MT/s: new condition; manufacturer Samsung; part series DDR5 RDIMM; capacity 96GB; transfer rate 6400 MT/s; peak bandwidth 51.2 GB/s; ddr generation DDR5. Manufacturer part number M321RYGA0B40-CWMHM. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.