Dell PowerEdge 13G vs 14G vs 15G vs 16G Guide

At a glance

A note on processor generations within 13G, 14G, and 16G: 13G spans both the E5-2600 v3 and v4 processor families — which specific family a given model supports depends on the model and, in some cases, the exact configuration ordered; see the model tables below rather than assuming one family for the whole generation. Within 14G, Dell's own R640 Technical Guide lists supported processors as "1st and 2nd Generation Intel Xeon Scalable" (its Table 5), while the R440 and R740 documents cited in this guide state 2nd Generation only for those specific models — do not assume every 14G model supports 1st Gen. Similarly, several 16G models (R660xs, R760xs, R760, T560) support both 4th-Generation and 5th-Generation Xeon Scalable processors, with different core counts and memory speeds for each — 16G is not a single-processor-generation platform.

Model-by-model comparison

13th Generation

Additional 13G rack and tower models exist (e.g. R530, T430) but are not included above — their specifications were not independently confirmed against a primary Dell document this review cycle, so they are omitted rather than estimated.

14th Generation

Additional 14G models exist (e.g. T440, T640) — T440 and T640 are Dell-certified for VMware vSphere 8.0 [15] but their other specifications were not independently confirmed this cycle and are omitted here.

15th Generation

Additional 15G models exist (e.g. R550, R650) and are Dell-certified for VMware vSphere 8.0 [15], but their platform-level specifications were not independently confirmed this cycle and are omitted here.

16th Generation

R660xs and R760xs are the storage-optimized/balanced-compute variants of their respective platforms — this document does not make a claim about the base R660 or R760xa/R750xa GPU-oriented variants, which were not independently sourced this cycle.

RAID vs. HBA — decision framing

This is general decision guidance, not a claim that every model above supports every controller listed elsewhere in this document — check the model tables above for what's confirmed per platform.

• RAID controllers (the Dell PERC family, internal or external — e.g. the R430's external PERC H830, which Dell classifies as a hardware RAID controller supporting RAID 0/1/5/6/10/50/60, not an HBA [1][16]) suit hardware-managed redundancy — the traditional pattern for a hypervisor like VMware ESXi installed to redundant local storage.
• HBA controllers suit software-defined-storage stacks that expect direct disk access — ZFS-based systems (e.g., TrueNAS) or Ceph are the common examples.
• Confirmed HBA options in the sourced documents above include the R640-era internal HBA330 [6], the T550-era HBA345/HBA355i [10], and the DDR5-generation HBA355i/HBA355e/HBA465i family across 15G/16G platforms [8][9][11][13][14].

Virtualization and storage-platform fit

Official vendor support. Dell publishes a certified-server list for VMware vSphere 8.0. As of this review, that list directly confirms the following models covered in this guide: R440, R450, R640, R740, R750, R660xs, R760, R760xs, T550, and T560 — along with T440 and several 15G models (R550, R650) not otherwise detailed above [15]. R430, R630, and R730 do not appear in Dell's current vSphere 8.0 certified-server list. This reflects the current certification list only — check Dell's live KB and the VMware Compatibility Guide directly for your exact model, firmware, controller, CPU, and hypervisor version before deploying, since certification lists change over time. [15]

Proxmox VE. Dell's published operating-system/hypervisor support documentation is the authority for official support claims. Based on the sources reviewed for this guide, no formal, PowerEdge-wide Proxmox VE certification was found. That is a statement about the evidence available, not a confirmed claim that Dell has ruled out Proxmox support entirely — a more definitive Dell statement was not located this review cycle. Community forum discussions describe running Proxmox VE on a range of PowerEdge models; that is usage evidence from users, not vendor certification, and should be treated accordingly when planning a production deployment.

TrueNAS / Unraid. No official vendor compatibility statement or substantive community evidence was reviewed for either platform against the specific models in this guide. This guide does not make a compatibility claim for either.

Buying and status guidance

For the current Dell 13th- and 14th-Generation shopping hubs generally, see Dell 13th Generation Servers and Dell 14th Generation Servers.

No price, availability, savings, shipping-time, testing-procedure, return-term, or warranty claim is made in this document. No Dell recertification or factory-refurbishment claim is made. No affiliate, partner, reseller, or certification relationship between TekBoost and Dell, Intel, VMware, or Proxmox is claimed or implied.

Decision checklist

1. Need official VMware certification for a specific vSphere version? Confirm your exact model, firmware, controller, and CPU directly against Dell's current KB and the VMware Compatibility Guide [15] before purchasing — certification lists change over time.
2. Running Proxmox? Treat compatibility as community-reported usage rather than formal Dell PowerEdge-wide certification, and verify your specific hardware configuration against current community documentation. Running TrueNAS or Unraid? This guide did not evaluate either platform — verify compatibility independently before relying on it; do not treat the Proxmox note above as covering these platforms too.
3. Need PCIe Gen4 or Gen5 expansion? 15G platforms offer PCIe Gen4; 16G platforms offer Gen4 and, on several models, Gen5 — see the model tables above for which slots on which model.
4. Need DDR5 memory? That's a 16G-only feature among the generations in this guide — 13G/14G/15G are all DDR4.
5. Choosing between two models in the same generation? Compare the exact DIMM slot count, memory speed, and PCIe slot configuration in the tables above — these vary meaningfully within a generation, not just between generations.

Frequently asked questions

What's the real difference between Dell PowerEdge generations? Primarily the processor family, the memory generation and speed ceiling, and the PCIe generation available for expansion cards — see the model tables above for the confirmed figures per platform.

Is 16G a single processor generation? No. Several 16G models in this guide (R660xs, R760xs, R760, T560) support both 4th-Generation and 5th-Generation Intel Xeon Scalable processors, with different maximum core counts and memory speeds for each.

Can I run Proxmox on a PowerEdge server? See the virtualization section above — no formal PowerEdge-wide Dell certification for Proxmox VE was found in the sources reviewed for this guide, though community users report running it on various models. Verify your exact hardware before relying on that for production use.

Are 15G and 16G PowerEdge servers available to buy directly from TekBoost right now? They're available through TekBoost's request-a-quote process — see the Buying and Status Guidance section above.

What's the difference between RAID and HBA controllers? See the RAID-vs-HBA section above.

Methodology and Sources

Every model specification in this guide was checked against a model-specific Dell technical document. When a source did not clearly state a field, the guide omits it instead of transferring a specification from a related model. Processor-generation labels use Dell's published terminology. Intel codenames are intentionally omitted because an Intel-primary reference was not directly available during this review.

1. Dell PowerEdge R430 Spec Sheet
2. Dell PowerEdge R630 Technical Guide v1.6
3. Dell PowerEdge R630 Owner's Manual — Memory
4. Dell PowerEdge R730 and R730xd Technical Guide v1.7
5. Dell PowerEdge R440 Technical Guide
6. Dell PowerEdge R640 Technical Guide
7. Dell PowerEdge R740 Spec Sheet
8. Dell PowerEdge R450 Spec Sheet
9. Dell PowerEdge R750 Spec Sheet
10. Dell PowerEdge T550 Spec Sheet
11. Dell PowerEdge R660xs Spec Sheet
12. Dell PowerEdge R760xs Spec Sheet
13. Dell PowerEdge R760 Spec Sheet
14. Dell PowerEdge T560 Spec Sheet
15. Dell PowerEdge servers certified for VMware vSphere 8.0 (KB000217592)
16. Dell list of PowerEdge RAID Controller (PERC) types (KB000131648)

Evidence boundary: This page does not claim that TekBoost independently tested every compatibility combination. It does not make TrueNAS or Unraid compatibility claims. Exact current hardware configuration, availability, and software support should be confirmed before purchase or deployment.