Dell PowerEdge R840 vs Lenovo ThinkSystem SR850 V2
Side-by-side specifications from the vendors' own documents. The Dell PowerEdge R840 is an enterprise 2U rack server powered by 4 Intel Xeon Scalable 1st Gen and 2nd Gen (up to 4 processors, 28 cores each, 205W TDP) and 48 memory slots supporting up to 6144GB DDR4-2666 / DDR4-2933 RDIMM / LRDIMM. The ThinkSystem SR850 V2 is Lenovo's high-density 2U four-socket enterprise server powered by 3rd Generation Intel Xeon Scalable processors (Cooper Lake, 5300/6300/8300HL series).
| Dell PowerEdge R840 | Lenovo ThinkSystem SR850 V2 | |
|---|---|---|
| Brand | Dell | Lenovo |
| Status | end-of-sale | end-of-sale |
| Released | May 2018 | Jun 2020 |
| Form factor | 2U rack | 2U rack |
| Cpu sockets | 4 | 4 |
| Cpu platform | Intel Xeon Scalable 1st Gen and 2nd Gen (up to 4 processors, 28 cores each, 205W TDP) | Up to 4 3rd Gen Intel Xeon Scalable processors (Cooper Lake) up to 28 cores per socket and 250W TDP |
| Memory slots | 48 | 48 |
| Memory type | DDR4-2666 / DDR4-2933 RDIMM / LRDIMM | DDR4-3200 RDIMM / 3DS RDIMM and Intel Optane Persistent Memory 200 Series |
| Memory max (GB) | 6,144 | 12,288 |
| Drive bays | Up to 24x 2.5-inch SAS/SATA/NVMe drives | Up to 24x 2.5-inch SFF hot-swap bays (supporting up to 24 direct NVMe PCIe 3.0 SSDs) |
| Pcie slots | Up to 6 PCIe Gen3 slots | Up to 7 PCIe 3.0 slots plus 1 OCP 3.0 slot |
| Gpu support | Up to 2x 300W double-wide or 4x 75W single-wide GPUs | — |
| Network onboard | Network Daughter Card (NDC) slot; 1x 1GbE iDRAC9 port | OCP 3.0 slot plus dedicated 1GbE XClarity management port |
| Power supply | Dual redundant hot-plug 1100W, 1600W, 2000W or 2400W Platinum | Dual redundant 1100W / 1800W / 2400W AC 80 PLUS Platinum or Titanium PSUs |
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