Dell PowerEdge CPU Compatibility Guide

Dell PowerEdge CPU compatibility is generation-, socket-, firmware- and model-dependent. A processor from one PowerEdge generation cannot be installed in a server built for a different generation, and within a generation, the exact model and installed system board can further limit which processors are supported. This guide covers which CPU families each generation supports, what changes at each generation boundary, and what to check before buying, upgrading, or matching a second processor.

At-a-glance generation table

No PowerEdge generation in this table shares a CPU family, socket platform, or memory generation with another. See the generation sections below for the per-model detail and sourcing.

Dell 13G CPU compatibility

13G PowerEdge servers (R430, R630, R730/R730XD) support the Intel Xeon E5-2600 v3 or v4 processor family, depending on the exact model. Dell's own R630 Technical Guide explicitly names the physical socket: Socket R, 2011-land FCLGA10 package. This is the only generation in this guide where Dell's published documentation states the exact socket designation directly.

Dell 14G CPU compatibility

14G PowerEdge servers (R440, R640, R740/R740XD) support 1st or 2nd Generation Intel Xeon Scalable processors, up to 28 cores per socket on 2nd Generation. Dell's own R640 and R740 Technical Guides both independently confirm the platform uses the Intel C620 series chipset. Neither document states the physical socket pin designation the way the 13G guide does, so that specific detail is not published here. Dell's R640 Technical Guide also notes that supported processor options can vary by the exact model within 14G, not just by generation — confirm the specific CPU against the applicable model's own documentation.

Dell 15G CPU compatibility

15G PowerEdge servers (R450, R650, R750/R750xa/R750xs, T550) support 3rd Generation Intel Xeon Scalable processors, up to 40 cores per socket on the R650 and R750. Dell's R650 and R750 Technical Guides were checked directly for a chipset or socket designation; neither document states one. CPU family and core counts are independently confirmed; the specific platform/socket name is not published in this guide because Dell's own documentation does not expose it.

Dell 16G CPU compatibility

16G PowerEdge servers (R660/R660xs, R760/R760xs, T560) support 4th Generation Intel Xeon Scalable or Intel Xeon Max processors, up to 56 cores per socket, or 5th Generation Intel Xeon Scalable processors, up to 64 cores per socket. Several 16G models support both the 4th and 5th Generation on the same chassis, with different maximum core counts and memory speeds for each — confirm which processor generation is actually installed in a specific unit rather than assuming one from the chassis model alone. Dell's R760 Technical Guide was checked directly for a chipset or socket designation; it does not state one.

Cross-generation upgrade limits

None of the four generations in this guide share a CPU family. Every official Dell document reviewed for this guide lists a generation-specific set of supported processors, with no overlap into another generation's processor family. A 13G, 14G, 15G, or 16G processor cannot be moved into a server built for a different generation. This follows directly from the chipset and platform changes Dell documents at each boundary — not from an assumption about physical socket compatibility that this guide cannot confirm for every generation.

Dual-socket matching requirements

On dual-socket PowerEdge models, both installed processors generally need to be a matching supported processor for that system; Dell's own technical guides describe supported processors as a set for the platform, not an arbitrary mix. Confirm the exact pairing requirements for a specific model and processor pair against its own Dell documentation before populating a second socket.

CPU upgrade considerations

• CPU support depends on the exact model and system board generation, not just the chassis family — 14G's own documentation specifically notes processor options can vary within the generation by model.
• Firmware and BIOS version can affect which processor revisions are supported; confirm current firmware before assuming a listed processor will work.
• A processor cannot normally be moved across PowerEdge generations — see Cross-Generation Upgrade Limits above.
• Single-socket and dual-socket configurations of the same model family can have different supported-processor lists; confirm against the specific configuration, not the model name alone.
• Memory generation is tied to CPU generation, not chosen independently — DDR4 across 13G/14G/15G, DDR5 at 16G.

Model-specific references

• Dell PowerEdge R640 specifications and options
• Dell PowerEdge R740 specifications and options
• Dell PowerEdge R650 specifications and options
• Dell PowerEdge R750 specifications and options
• Dell PowerEdge 13G vs 14G vs 15G vs 16G Guide

Configure / shop options

• Build Your Own Server
• Shop current Dell 13G servers
• Shop current Dell 14G servers
• Browse refurbished Dell PowerEdge servers

Hardware bought from TekBoost carries our standard 3-year warranty with Next Business Day part replacement, subject to the terms, exclusions and conditions on that page. Every system is tested before shipment. To confirm an exact processor and configuration against current stock, request a quote.

Methodology and sources

Last reviewed: 2026-11-13. CPU family, socket count, core counts, and chipset/socket identifiers (where stated) are drawn directly from Dell's official Technical Guides for the R630 (Rev 1.6, 2015), R640, R740/R740XD, R650, R750, and R760 (Regulatory Model E82S Series, Rev. A06), each read and searched in full for this guide. Where Dell's own documentation does not state a chipset or socket designation — 15G and 16G in this guide — that field is omitted rather than estimated. TekBoost's current Dell catalog is Intel-only; no AMD-platform model is covered because none exists in TekBoost's current lineup.