Dell PowerEdge R750 Specifications
The R750 is a 15th Generation (15G) Dell PowerEdge rack server supporting 3rd Generation Intel Xeon Scalable processors (Ice Lake) in a dual-socket configuration.
| Specification | Details |
|---|---|
| Form Factor | 2U Rack |
| Processors | 1 or 2x 3rd Gen Intel Xeon Scalable (Ice Lake, 10nm) |
| Max Cores | 40 per socket, 80 threads total |
| Max TDP | 270W per processor |
| Memory Slots | 32x DDR4 (16 per CPU, 8 channels per CPU) |
| Max Memory (RDIMM) | 2 TB with 64 GB modules |
| Max Memory (LRDIMM) | 8 TB with 256 GB modules |
| Memory Speed | Up to 3200 MT/s |
| Persistent Memory | Intel Optane PMem 200 Series (up to 8 TB per socket) |
| Drive Bays | 8x2.5", 12x3.5", 16x2.5", or 24x2.5" (chassis dependent) |
| RAID Controllers | S150 (SW), H345, H745, H755, HBA355i/e |
| PCIe Slots | Up to 8x PCIe Gen 4 (up to 6 x16) |
| Network | 2x 1GbE LOM + OCP 3.0 slot (PCIe Gen 4) |
| SNAP I/O | Balanced socket I/O via Mellanox socket direct technology |
| Management | iDRAC9 with Lifecycle Controller |
| Power Supply | Hot-swap 1+1 redundant (700W to 2800W, 8 options) |
| GPU Support | Up to 2x 300W double-width or 6-8x 75W single-width |
| Boot Options | BOSS-S1/S2 (M.2 SATA RAID1), IDSDM MicroSD, Internal USB 3.0, PXE |
| Cooling | Air standard, optional Direct Liquid Cooling (DLC) |
| Dimensions | 86.8mm (H) x 482mm (W) x 772mm (D with bezel) |
The R750 introduced several key improvements over the R740: 32 DIMM slots (vs 24), 8 memory channels per CPU (vs 6), PCIe Gen 4 (2x bandwidth per lane), Intel Optane PMem 200 Series (vs NVDIMM-N), and SNAP I/O for balanced network performance across both CPU sockets without requiring dual NIC configurations.
R750 Chassis Options at Enterasource
The Dell R750 is available in four chassis configurations, each optimized for different storage profiles.
| Chassis | Front Drive Bays | Rear Bays | Max Raw Capacity | Best For |
|---|---|---|---|---|
| 8x2.5-inch SFF | 8x 2.5" SAS/SATA/NVMe | Up to 4x 2.5" rear | Various | Compute-focused with moderate storage |
| 12x3.5-inch LFF | 12x 3.5" SAS/SATA | Up to 4x 2.5" rear | 192 TB front (12x 16 TB) | Bulk capacity, nearline, backup targets |
| 16x2.5-inch SFF | 16x 2.5" SAS/SATA/NVMe | Up to 4x 2.5" rear | 245.76 TB front | Balanced compute and high-IOPS storage |
| 24x2.5-inch SFF | 24x 2.5" SAS/SATA/NVMe | Up to 4x 2.5" rear | 368.84 TB front | Maximum storage density in 2U |
All drives are hot-swappable. The 16x and 24x chassis support mixed SAS/SATA and NVMe configurations, and the 24x chassis supports NVMe switch and Dual Controller options for high-availability storage.
Every R750 at Enterasource is configured to order. Select your chassis, processors, memory, drives, RAID controller, GPU, and networking, then our team assembles, tests, and ships your server with a 2-year warranty and free ground shipping to the lower 48 states.
Dell R750 vs R740 — 15th Gen vs 14th Gen
The R740 is the direct 14th Generation predecessor to the R750 in Dell's 2U rack server lineup.
| Feature | R750 (15th Gen) | R740 (14th Gen) |
|---|---|---|
| Processors | 3rd Gen Xeon Scalable (Ice Lake, 10nm) | 1st/2nd Gen Xeon Scalable (14nm) |
| Max Cores Per CPU | 40 | 28 |
| Max TDP | 270W | 205W |
| PCIe Generation | Gen 4 (16 GT/s per lane) | Gen 3 (8 GT/s per lane) |
| DIMM Slots | 32 (16 per CPU, 8 channels) | 24 (12 per CPU, 6 channels) |
| Max DDR4 Speed | 3200 MT/s | 2666-2933 MT/s |
| Max RAM (RDIMM) | 2 TB | 1.5 TB |
| Max RAM (LRDIMM) | 8 TB | 3 TB |
| Persistent Memory | Intel Optane PMem 200 (up to 8 TB/socket) | NVDIMM-N (192 GB max) |
| Max Front Drive Bays | 24x 2.5" or 12x 3.5" | 16x 2.5" or 8x 3.5" |
| GPU Support | 2x 300W DW or 6-8x 75W SW | 3x 300W DW or 6x 150W SW |
| Networking | 2x 1GbE LOM + OCP 3.0 (Gen 4) | rNDC (Gen 3) |
| SNAP I/O | Yes | Not available |
| Cooling | Air + optional DLC | Air only |
Choose the R750 when you need PCIe Gen 4 bandwidth, more than 28 cores per socket, 32 DIMM slots with 8 memory channels, Intel Optane PMem 200 for large in-memory workloads, or SNAP I/O for balanced network performance. Choose the R740 when budget is the priority, you need three double-width 300W GPUs (R750 supports only two), or existing 1st/2nd Gen Xeon inventory compatibility matters.
Dell R750 vs R760 — 15th Gen vs 16th Gen
The R760 is the direct 16th Generation successor to the R750.
| Feature | R750 (15th Gen) | R760 (16th Gen) |
|---|---|---|
| Processors | 3rd Gen Xeon Scalable (Ice Lake) | 4th Gen Xeon Scalable (Sapphire Rapids) |
| Max Cores Per CPU | 40 | 56 |
| Memory Type | DDR4 | DDR5 |
| Max DDR Speed | 3200 MT/s | 4800 MT/s |
| Max RAM | 2 TB RDIMM / 8 TB LRDIMM | 8 TB RDIMM |
| Persistent Memory | Intel Optane PMem 200 (up to 8 TB/socket) | Not supported |
| PCIe Generation | Gen 4 | Gen 5 (up to 4 slots) + Gen 4 |
| SAS Speed | 12 Gb/s | 24 Gb/s (SAS-4) |
| BOSS Card | BOSS-S1/S2 (M.2 SATA) | BOSS-N1 (M.2 NVMe) |
| GPU Support | 2x 300W DW or 6-8x 75W SW | 2x 350W DW or 6x 75W SW |
| Built-in Accelerators | None | QAT, AMX, DSA, IAA |
| Citrix Hypervisor | Supported | Not supported |
Choose the R750 when DDR4 pricing is favorable, your workload requires Intel Optane Persistent Memory (not available on the DDR5 R760), Citrix Hypervisor is required, or 15th Gen performance meets your requirements at a lower refurbished cost. Choose the R760 when you need PCIe Gen 5, DDR5 performance, built-in Intel accelerators, or more than 40 cores per socket.
R750 vs R750xs vs R750xa — Which Variant Do You Need?
Dell offers three R750 variants sharing the same 3rd Gen Intel Xeon Scalable platform. Each is optimized for a different priority.
R750 — The full-featured 2U server with maximum PCIe expansion (up to 8 slots), full GPU support (up to 2x 300W double-width), and the widest range of chassis configurations (8x2.5", 12x3.5", 16x2.5", 24x2.5"). Choose the R750 for general-purpose enterprise workloads, virtualization, and database hosting.
R750xs — A cost-optimized 2U variant with fewer PCIe slots and limited riser options. Same processor and memory platform. Choose the R750xs when PCIe expansion and GPU support are not priorities and budget is the main concern.
R750xa — A GPU/accelerator-optimized 2U variant designed for maximum GPU density. Choose the R750xa for AI/ML training, HPC, and rendering workloads that require the most GPU slots in a 2U form factor.
Frequently Asked Questions
What are the Dell PowerEdge R750 specifications?
The R750 is a 2U dual-socket server supporting up to two 3rd Gen Intel Xeon Scalable processors with up to 40 cores each (80 threads total). It has 32 DDR4 DIMM slots for up to 8 TB RAM (LRDIMM) at 3200 MT/s, Intel Optane PMem 200 Series support, up to 8 PCIe Gen 4 slots, up to 24x 2.5-inch or 12x 3.5-inch hot-swap drive bays, and GPU support for up to 2x 300W double-width or 6-8x 75W single-width accelerators. SNAP I/O provides balanced network performance across both CPU sockets.
What generation is the Dell R750?
The Dell PowerEdge R750 is a 15th Generation (15G) server. It uses 3rd Generation Intel Xeon Scalable processors (Ice Lake, 10nm process). The 14th Gen predecessor is the R740; the 16th Gen successor is the R760.
What is the difference between the Dell R750 and R740?
The R750 is the 15th Gen successor to the 14th Gen R740. Key upgrades: PCIe Gen 4 (2x bandwidth per lane), 3rd Gen Xeon with up to 40 cores (vs 28), 32 DIMM slots with 8 channels (vs 24 slots with 6 channels), DDR4 at 3200 MT/s (vs 2666-2933), up to 24 front drive bays (vs 16), Intel Optane PMem 200, SNAP I/O for balanced networking, and optional Direct Liquid Cooling. The R740 offers lower refurbished cost and supports three double-width 300W GPUs (R750 supports two).
What is the difference between the Dell R750 and R760?
The R760 is the 16th Gen successor. Key changes: DDR5 at 4800 MT/s (vs DDR4 at 3200), PCIe Gen 5 (double the per-lane bandwidth), 4th Gen Xeon with up to 56 cores (vs 40), 24 Gb/s SAS-4 (vs 12 Gb/s), built-in Intel accelerators (QAT, AMX, DSA), and NVMe-based BOSS-N1 boot. The R750 retains Intel Optane Persistent Memory support and Citrix Hypervisor compatibility, which the R760 dropped.
What is the difference between the R750, R750xs, and R750xa?
All three share the same 3rd Gen Intel Xeon Scalable platform and DDR4 memory. The R750 is the full-featured model with maximum PCIe expansion (up to 8 slots) and GPU support. The R750xs is a cost-optimized variant with fewer PCIe slots. The R750xa is optimized for maximum GPU/accelerator density for AI/ML and HPC workloads. Choose R750 for general-purpose, R750xs for budget-conscious deployments, R750xa for GPU-heavy workloads.
Is the Dell R750 compatible with VMware ESXi?
Yes. The R750 is on the VMware Hardware Compatibility List and supports ESXi 6.7, 7.0, and 8.0. It includes Intel VT-x and VT-d for hardware-assisted virtualization, 32 DIMM slots for up to 8 TB RAM, and BOSS-S1/S2 SATA boot to keep the hypervisor separate from data drives. The R750 also supports Citrix Hypervisor (still supported on 15th Gen, dropped on 16th Gen), Microsoft Hyper-V, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and Canonical Ubuntu Server.
How much does a refurbished Dell R750 cost?
Pricing for a refurbished Dell PowerEdge R750 depends on the chassis configuration, processor selection, DDR4 memory capacity, storage, GPU, and networking options. Use the configurator on this page to select your components and request a quote. Enterasource builds every R750 to order with a 2-year warranty and free ground shipping to the lower 48 states.
Browse all Dell PowerEdge servers available at Enterasource.
