If you're shopping for a 2U dual-socket workhorse, odds are the HPE ProLiant DL380 has come up in your research. It's one of the best-selling rack servers on the planet, and HPE has kept it relevant for nearly a decade through steady generational updates. The two most common choices buyers are weighing today are the DL380 Gen10 and the DL380 Gen10 Plus — and while the names look almost identical, the gap between them is bigger than a single word suggests.
This guide breaks down the real differences in processors, memory, expansion, and storage, then helps you figure out which generation actually fits your budget and workload.
HPE Proliant DL380 Gen10
HPE Proliant DL380 Gen10 Plus
The Short Version
The DL380 Gen10 runs on 1st and 2nd Generation Intel Xeon Scalable processors with DDR4 memory and PCIe 3.0 — proven, cost-effective, and widely available on the refurbished market.
The DL380 Gen10 Plus moves to 3rd Generation Intel Xeon Scalable processors, doubles the memory channels per CPU, and brings PCIe 4.0 to the platform — higher throughput for storage, networking, and accelerator cards.
If your workloads are CPU- or I/O-bound, the Gen10 Plus is the better long-term investment. If you're running general-purpose virtualization, file/print, or lighter line-of-business applications and budget is the deciding factor, a well-configured Gen10 still has plenty of life left in it.
Side-by-Side Specifications
| Feature | DL380 Gen10 | DL380 Gen10 Plus |
|---|---|---|
| Processors | 1st/2nd Gen Intel Xeon Scalable, up to 28 cores | 3rd Gen Intel Xeon Scalable, up to 40 cores |
| Sockets | 2 | 2 |
| Memory Type | DDR4 SmartMemory, up to 2933 MT/s | DDR4 SmartMemory, up to 3200 MT/s |
| Memory Channels / CPU | 6 | 8 |
| DIMM Slots | 24 (12 per CPU) | 32 (16 per CPU) |
| Maximum Memory | ~3.0 TB RDIMM | ~8.1 TB RDIMM |
| PCIe Generation | PCIe 3.0 (48 lanes per CPU) | PCIe 4.0 (64 lanes per CPU, 128 total) |
| Drive Bay Options | Up to 30 SFF, 19 LFF, or 20 NVMe | Up to 24 SFF (38 with mid-tray), 12 LFF, Trimodal NVMe/SAS/SATA |
| Storage Controllers | Smart Array (SAS 12G) | Trimodal Smart Array (NVMe/SAS/SATA) |
| Network Adapter | FlexibleLOM, Embedded 4×1GbE | FlexibleLOM, OCP 3.0 Adapter Support |
| Form Factor | 2U, 2-Socket | 2U, 2-Socket |
| Warranty | 3/3/3 | 3/3/3 |
Processors: The Biggest Generational Jump
This is where the two servers diverge the most. The Gen10 supports 1st Generation ("Skylake") and 2nd Generation ("Cascade Lake") Intel Xeon Scalable processors, topping out around 28 cores per socket. These chips were class-leading at launch but are now several generations behind in per-core performance and efficiency.
The Gen10 Plus moved to 3rd Generation ("Ice Lake") Xeon Scalable processors, which use a different socket entirely — so there's no upgrade path from one platform to the other. In exchange, you get meaningfully more cores at the top end:
- Platinum SKUs scale up to 40 cores per socket
- Gold SKUs scale up to 32 cores
- Silver SKUs scale up to 20 cores
For consolidation projects, dense virtualization hosts, or any workload that's licensed per core, the core-count increase can have a direct impact on how many physical servers you need.
Memory: More Channels, More Capacity, More Speed
Memory bandwidth is often the quiet bottleneck in older servers, and this is one of the most underrated upgrades in the Gen10 Plus. HPE doubled the memory channels per processor from 6 to 8, added 8 more DIMM slots overall (32 vs. 24), and increased the supported speed from 2933 MT/s to 3200 MT/s.
DL380 Gen10
- 6 memory channels per CPU
- 24 DIMM slots total
- Up to 2933 MT/s
- ~3.0 TB max RDIMM
DL380 Gen10 Plus
- 8 memory channels per CPU
- 32 DIMM slots total
- Up to 3200 MT/s
- ~8.1 TB max RDIMM
The practical effect is a substantial jump in memory bandwidth per socket — important for databases, in-memory analytics, and virtualization hosts where memory throughput, not just capacity, determines how responsive workloads feel.
PCIe 3.0 vs PCIe 4.0: Why It Matters More Than It Sounds
On paper, "PCIe 3.0 vs PCIe 4.0" might sound like a spec sheet footnote, but it has real downstream effects. PCIe 4.0 doubles the per-lane bandwidth compared to PCIe 3.0, and the Gen10 Plus pairs that with more total lanes (up to 128 across both CPUs vs. 96 on the Gen10).
Where PCIe 4.0 Headroom Matters Most
- Modern NVMe drives that can saturate PCIe 3.0 lanes fairly easily
- 100GbE+ network adapters requiring sustained high throughput
- GPUs and accelerators for AI/ML inference or HPC workloads
- High-speed NVMe storage arrays
If your future plans include high-speed networking or NVMe-heavy storage arrays, the Gen10 Plus gives you headroom that the original Gen10 simply doesn't have.
Storage and Networking Flexibility
Both generations offer an unusually wide range of drive bay configurations for a 2U chassis, but they take slightly different approaches. The Gen10 supports configurations up to 30 SFF, 19 LFF, or 20 NVMe drives along with traditional 12Gb/s SAS Smart Array controllers.
The Gen10 Plus refines this with trimodal Smart Array controllers that can address NVMe, SAS, and SATA drives through the same controller — useful if you want flexibility to mix drive types without redesigning your storage backplane later. It also adds support for OCP 3.0 network adapters, an industry-standard form factor that's increasingly common in newer switch and NIC ecosystems.
Power, Density, and Physical Footprint
Both servers share the same 2U, dual-socket chassis design, so rack density and basic physical planning (rail kits, cable management, depth) carry over almost unchanged. Power supply options are similar as well, with hot-plug redundant Flexible Slot power supplies available across both generations.
If you're slotting a replacement into an existing rack, neither generation should cause surprises on the facilities side.
Security and Management: iLO 5 and Silicon Root of Trust
Both the Gen10 and Gen10 Plus share the same security foundation: HPE's iLO 5 management chip with Silicon Root of Trust, which validates firmware integrity from the supply chain through every boot and can automatically detect and recover from compromised firmware. This is a baseline feature across the entire Gen10 family — it isn't something the Plus models added on top.
What Actually Changes the Management Experience
The iLO license tier has more impact than the chassis generation. iLO Standard (included on every unit) covers core remote management and Silicon Root of Trust protections. iLO Advanced unlocks the full security dashboard, server configuration lock, and richer remote console features.
When comparing two specific units, check which iLO license is included — it has more impact on your day-to-day management experience than whether the server is a Gen10 or Gen10 Plus.
Total Cost of Ownership: Budget vs. Lifecycle
Purchase price is only part of the picture. Three things worth weighing before you commit:
Acquisition Cost
The Gen10 has strong availability on certified refurbished and off-lease markets — often at meaningful discounts versus comparable Gen10 Plus configurations.
Support Window
As the newer platform, the Gen10 Plus has a longer runway before end-of-life milestones — useful for multi-year deployments.
Consolidation
Higher core counts and memory bandwidth can mean fewer physical servers — lowering power, cooling, and rack space costs over time.
For short-term, budget-driven, or fleet-consistency purchases, the Gen10's lower acquisition cost usually wins. For anything you expect to run for 5+ years, it's worth running the numbers on power, space, and consolidation savings before assuming the Gen10 Plus's higher price isn't justified.
Which One Should You Buy?
Choose the DL380 Gen10 if…
- Your workloads are general-purpose (file/print, domain services, lighter virtualization, dev/test)
- Budget is the primary constraint and you're buying refurbished or off-lease hardware
- You don't need PCIe 4.0-class NVMe or networking speeds in the near term
- You already have a Gen10 fleet and want consistency for spares and management
Choose the DL380 Gen10 Plus if…
- You're running CPU-dense workloads — VDI, databases, containers, or anything licensed per core
- You plan to deploy NVMe storage or 25/50/100GbE networking now or in the next 2–3 years
- Memory bandwidth matters for your applications (databases, in-memory caching, analytics)
- You want the longest possible runway before your next hardware refresh
Final Thoughts
The DL380 Gen10 Plus isn't just a minor refresh — it's a genuine platform upgrade across CPU, memory, and I/O. For new deployments with any kind of growth expectation, it's the safer long-term bet.
That said, the original DL380 Gen10 remains a capable, well-supported server. For cost-sensitive projects or workloads that aren't pushing the limits of memory bandwidth or PCIe throughput, it still represents excellent value — particularly when sourced through the refurbished and off-lease market.
Whichever generation fits your needs, make sure to match the configuration — processor SKU, memory layout, drive bays, and networking — to your actual workload rather than just the chassis generation. Within each generation, configuration choices swing performance and price far more than the Gen10 vs. Gen10 Plus label alone.
