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Dell PowerEdge R750xa

The Dell PowerEdge R750xa is a 2U dual-socket accelerator server running up to two 3rd Generation Intel Xeon Scalable processors with up to 40 cores each. It supports up to four 300W double-width or four 150W single-width front GPUs plus two rear single-wide cards, 32 DDR4 DIMM slots (up to 4TB LRDIMM at up to 3200 MT/s) and 16 Intel Optane PMem 200 slots, up to eight PCIe Gen4 slots and up to 8x 2.5" SAS/SATA/NVMe drives. Managed by iDRAC9, with optional processor liquid cooling, it is built for AI, ML and inferencing. Fully configurable.

Looking to compare generations? See its Gen 16 successor, the Dell PowerEdge R760xa, or compare Gen 15 models: Dell PowerEdge R750xs and Dell PowerEdge R7525.

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  • Form Factor: 2U Rack
  • Processors: Up to 2x 3rd Gen Intel Xeon Scalable (up to 40 cores)
  • Memory: 32x DDR4 DIMM slots, up to 4TB LRDIMM, plus 16x PMem 200
  • Memory Speed: Up to 3200 MT/s
  • Storage: Up to 8x 2.5" SAS/SATA/NVMe
  • Expansion: Up to 8x PCIe Gen4 slots (6x x16)
  • GPU Support: Up to 4x 300W DW or 4x 150W SW front, plus 2x 75W SW rear
  • Networking: 2x 1GbE LOM, 1x OCP 3.0 (x8)
  • Management: iDRAC9
  • Cooling: Air, optional processor liquid cooling
  • Power: Redundant PSUs, 1400W to 2800W

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Dell PowerEdge R750xa vs C4140: Specs & Key Differences

Feature PowerEdge R750xa PowerEdge C4140
Processors Up to 2x 3rd Gen Intel Xeon Scalable (up to 40 cores) Up to 2x 2nd Gen Intel Xeon Scalable
GPU Support 2 to 4x DW GPUs (A100, A40, A30, A10, MI100) or 2 to 6x SW (T4) Fixed 4x DW GPUs (V100, V100S)
GPU Interconnect 600GB/s NVLink bridges (A100, A40) 300GB/s NVLink board (V100)
Memory 32x DDR4 RDIMM/LRDIMM + 16x Intel Optane PMem 200 24x DDR4 RDIMM/LRDIMM
Storage Up to 8x 2.5" SAS/SATA SSD or NVMe N/A
PCIe Up to 8x PCIe 4.0 (up to 6 x16) Up to 7x PCIe 3.0 (up to 4 x16)
Networking 2x 1GbE LOM + OCP 3.0 (x8) N/A
Thermals Standard limit up to 35C Some configs limited to 20C
Power 1400W to 2800W 1400W or 2400W
Management iDRAC9 iDRAC9

Frequently Asked Questions

Up to two 3rd Generation Intel Xeon Scalable processors with up to 40 cores each.

Up to four 300W double-width or four 150W single-width GPUs in the front, plus two 75W single-width cards in the rear. Dell lists A100, A40, A30, A10 and MI100 double-width cards and T4 single-width cards, with 600GB/s NVLink bridges for A100 and A40.

It has 32 DDR4 DIMM slots for up to 2TB with RDIMMs or 4TB with LRDIMMs at up to 3200 MT/s, plus up to 16 Intel Optane Persistent Memory 200 series modules (8TB max).

Up to 8x 2.5-inch SAS/SATA/NVMe drives, or up to 6x direct-attach NVMe SSDs, with BOSS-S2 M.2 boot. Please specify your capacity needs when you submit your quote configuration.

Dell positions the R750xa against the C4140. It moves to 3rd Gen Xeon Scalable and PCIe Gen4, offers flexible GPU choices instead of a fixed four V100s, adds up to 8 drive bays, LOM and OCP 3.0, and raises the standard thermal limit to 35C.

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