M321R4GA3PB0-CWM vs M321R3GA3PB0-CWM Comparison
Detailed side-by-side comparison of M321R4GA3PB0-CWM by Samsung Electronics and M321R3GA3PB0-CWM by Samsung Electronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Samsung Electronics
M321R4GA3PB0-CWM - 32GB DDR5-5600 ECC RDIMM | Samsung | Servers
M321R4GA3PB0-CWM ✓ Active
Specification Comparison
| Parameter | M321R4GA3PB0-CWM | M321R3GA3PB0-CWM |
|---|---|---|
| Brand | Samsung Electronics | Samsung Electronics |
| Category | EEPROM | Memory ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1,033.59 | $0.00 |
| Module Type | 288-pin RDIMM (Registered DIMM) | 288-Pin ECC Registered DIMM (RDIMM) |
| Memory Technology | DDR5 SDRAM | — |
| Capacity | 32 GB (4Gx72) | 24 GB |
| Data Rate | 5600 Mbps (PC5-44800) | — |
| Operating Voltage | 1.1 V | 1.1 V |
| Organization | 2Rx8 (Dual Rank, x8) | 3Gx72 |
| ECC | ECC Registered | — |
| CAS Latency | CL46 | CL46 |
| DRAM Composition | 20 x 2Gx8 FBGA DDR5 components | — |
| Pin Count | 288 | — |
| Form Factor | 288-pin DIMM | — |
| Mounting Type | Slot (DIMM socket) | — |
| Compliance | JEDEC DDR5 standard | — |
| Compatible Platforms | Intel Xeon Scalable / Emerald Rapids, AMD EPYC servers | Lenovo ThinkSystem SR630 V3, SR650 V3, SR650 V4, SD650 V3 (vendor cross-refs verified) |
| Bandwidth | 44.8 GB/s per module (PC5-44800) | — |
| Stock (icDirectory) | 34200 pcs (updated Aug 17, 2026) | — |
| Memory Type | — | DDR5 SDRAM |
| Rank | — | Single Rank (1Rx8) |
| Transfer Rate | — | 5600 Mbps (PC5-44800) |
| DRAM Configuration | — | 10 x FBGA 3Gx8 DDR5 DRAM |
| ECC Support | — | Yes (ECC Registered) |
| Pins | — | 288 |
| Buffered | — | Yes (Registered/Buffered) |
| Application | — | Server / Data Center |
| Consumer PC Compatibility | — | No (server memory only) |
| Lifecycle Status | — | Mass Production |