Dell PowerEdge R750xa Specifications
| Specification | Details |
|---|---|
| Form Factor | 2U Rack (GPU-optimized) |
| Processors | Up to 2x 3rd Gen Intel Xeon Scalable (up to 40 cores each) |
| Max Cores | 80 total |
| Memory Slots | 32x DDR4 RDIMM (2 TB) or LRDIMM (4 TB) |
| Memory Speed | 3200 MT/s |
| Persistent Memory | Up to 16x Intel Optane PMem 200 (8 TB max) |
| Drive Bays | Up to 8x 2.5" SAS/SATA/NVMe or 6x 2.5" NVMe direct-attach |
| Max Storage | 122.88 TB |
| GPU Support | Up to 4x double-width full-length GPUs or 8x single-width |
| RAID Controllers | S150, H345, H745, H755, H755N, HBA355i, H840 (external) |
| BOSS Card | BOSS-S2 (hot-plug M.2) |
| Management | iDRAC9 |
| Power Supply | 1400W/1800W/2400W/2800W (high wattage for GPU) |
| Cooling | Air + optional DLC, High Performance Gold fans only |
| Chassis Depth | 895 mm (deep — verify rack compatibility) |
The R750xa sacrifices drive bay count (max 8) for GPU card space. The minimum 1400W PSU and Gold-only fan requirement reflect the thermal demands of multi-GPU configurations.
Dell R750xa vs R750 vs R750xs — Choosing the Right 15G 2U
| Feature | R750xa (GPU) | R750 (Full-Featured) | R750xs (Value) |
|---|---|---|---|
| Primary Use | GPU/AI/ML | General purpose | Cost-optimized |
| Max GPUs | 4x DW or 8x SW | 2x DW or 6-8x SW | Limited |
| DIMM Slots | 32 | 32 | 16 |
| Max RAM | 4 TB LRDIMM | 8 TB LRDIMM | 1 TB |
| Max Drives | 8x 2.5" | 24x 2.5" or 12x 3.5" | 24x 2.5" or 12x 3.5" |
| Min PSU | 1400W | 700W | 600W |
| Chassis Depth | 895 mm | 736 mm | 736 mm |
| DLC | Optional | Optional | No |
Choose the R750xa for maximum GPU density (AI training, HPC, rendering). Choose the R750 for general-purpose workloads with moderate GPU needs. Choose the R750xs for budget deployments without GPU requirements.
Frequently Asked Questions
How many GPUs does the Dell R750xa support?
Up to 4 double-width, full-height, full-length GPUs (such as NVIDIA A100 or A30) or up to 8 single-width GPUs. The R750xa is the most GPU-dense 15th Gen 2U server.
What is the difference between the R750xa and R750?
Both are 15th Gen 2U servers with the same processor and memory platform. The R750xa maximizes GPU density (4x DW vs 2x DW) but limits storage to 8 drive bays. The R750 offers up to 24 drive bays and broader storage flexibility. Choose the R750xa for GPU-first workloads, the R750 for general-purpose or storage-heavy workloads.
What generation is the Dell R750xa?
The Dell PowerEdge R750xa is a 15th Generation (15G) GPU-optimized server using 3rd Gen Intel Xeon Scalable processors.
How much does a refurbished Dell R750xa cost?
Pricing depends on processor, memory, GPU, and storage configuration. Use the configurator on this page to request a quote. Enterasource builds every R750xa to order with a 2-year warranty and free ground shipping to the lower 48 states.
Browse all Dell PowerEdge servers available at Enterasource.
