Dell PowerEdge T640 vs Lenovo ThinkSystem ST550
Side-by-side specifications from the vendors' own documents. The Dell PowerEdge T640 is an enterprise tower server powered by 2 Intel Xeon Scalable 1st Gen and 2nd Gen (up to 28 cores, 205W TDP) and 24 memory slots supporting up to 3072GB DDR4-2666 / DDR4-2933 RDIMM / LRDIMM. The ThinkSystem ST550 was Lenovo's versatile 4U two-socket tower server engineered for branch offices, retail locations, distributed enterprises, and remote business environments without dedicated server rooms.
| Dell PowerEdge T640 | Lenovo ThinkSystem ST550 | |
|---|---|---|
| Brand | Dell | Lenovo |
| Status | end-of-sale | end-of-sale |
| Released | Sep 2017 | Jul 2017 |
| Form factor | tower | tower |
| Cpu sockets | 2 | 2 |
| Cpu platform | Intel Xeon Scalable 1st Gen and 2nd Gen (up to 28 cores, 205W TDP) | Intel Xeon Scalable 1st Gen (Skylake-SP) and 2nd Gen (Cascade Lake-SP) up to 125W TDP |
| Memory slots | 24 | 12 |
| Memory type | DDR4-2666 / DDR4-2933 RDIMM / LRDIMM | DDR4-2666 / DDR4-2933 RDIMM / LRDIMM |
| Memory max (GB) | 3,072 | 768 |
| Drive bays | Up to 32x 2.5-inch SAS/SATA/NVMe or 18x 3.5-inch SAS/SATA drives | Up to 16x 2.5-inch SFF hot-swap bays (supporting up to 4 AnyBay NVMe bays) or 8x 3.5-inch LFF bays |
| Pcie slots | Up to 8 PCIe Gen3 slots | Up to 6 PCIe 3.0 slots |
| Gpu support | Up to 4x 300W double-wide or 8x single-wide GPUs | Up to 2 single-wide or 1 double-wide GPU adapter |
| Network onboard | 2x 10GbE + 2x 1GbE LOM ports; 1x 1GbE iDRAC9 port | Dual integrated 1GbE RJ-45 ports plus dedicated 1GbE XClarity management port |
| Power supply | Dual redundant hot-plug 495W, 750W, 1100W, 1600W, 2000W or 2400W | Fixed 450W PSU or dual redundant 550W / 750W / 1100W AC 80 PLUS Platinum hot-swap PSUs |
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