Cisco UCS C225 M6 vs Lenovo ThinkSystem SR635 V3
Side-by-side specifications from the vendors' own documents. The Cisco UCS C225 M6 is a 1U 2-socket rack server powered by 3rd Gen AMD EPYC processors. The Lenovo ThinkSystem SR635 V3 is an enterprise 1U single-socket server powered by AMD EPYC 9004 Series processors.
| Cisco UCS C225 M6 | Lenovo ThinkSystem SR635 V3 | |
|---|---|---|
| Brand | Cisco | Lenovo |
| Status | current | current |
| Released | Jun 2021 | May 2023 |
| Form factor | 1U rack | 1U rack |
| Processor | Up to 2x 3rd Gen AMD EPYC 7003 series processors up to 64 cores each (up to 280W TDP) | Single AMD EPYC 9004 series processor up to 128 cores (up to 360W TDP) |
| Memory | 32x DDR4 DIMM slots (16 per CPU) supporting up to 8TB DDR4-3200 | 12x DDR5 DIMM slots (1 DPC) supporting up to 1.5TB DDR5-4800 ECC RDIMM |
| Drive bays | Up to 10x 2.5-inch SAS/SATA/NVMe SSDs, plus dual internal M.2 boot drives | Up to 12x 2.5-inch or 4x 3.5-inch drive bays; full NVMe Gen5 drive support with E1.S options |
| Expansion slots | Up to 3x PCIe Gen 4 slots plus 1x dedicated OCP 3.0 slot | Up to 4x PCIe 5.0 slots plus 1x OCP 3.0 slot |
| Network | OCP 3.0 slot supporting up to 100GbE and Cisco VIC 1467 PCIe mezzanine adapters | OCP 3.0 mezzanine slot supporting 10/25/100GbE adapters |
| Power supply | Dual redundant hot-swap power supplies up to 1600W | Dual redundant hot-swap 750W, 1100W, or 1800W Titanium/Platinum PSUs |
| Management | Cisco IMC and Cisco Intersight | Lenovo XClarity Controller 2 (XCC2) |
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