Head-to-head · every figure from the vendor documents
HPE DL380 Gen10 vs HPE DL380a Gen12
A specification-by-specification comparison of the HPE ProLiant DL380 Gen10 and the HPE ProLiant Compute DL380a Gen12, built from HPE’s own documents. 2 headline measures favour the DL380 Gen10, 5 favour the DL380a Gen12, and they share no processors.
Bottom line. DL380 Gen10 leads on storage density. DL380a Gen12 leads on virtualisation, databases and in-memory work, AI and acceleration, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.
Each row is a figure both vendors publish. Bars show the split between the two; a badge marks the larger figure, which is not always the better buy — a shallower chassis or a lower power ceiling can matter more.
DL380 Gen102
Processor sockets
DL380a Gen122
DL380 Gen1056
Cores, fully populated
Largest listed processor × its socket count
DL380a Gen12288Higher
DL380 Gen103 TB
Memory ceiling
As each document states it
DL380a Gen128 TBHigher
DL380 Gen1024Higher
Drive bays
DL380a Gen1216
DL380 Gen10Up to 8
Accelerators
DL380a Gen12Up to 10Higher
DL380 Gen102,200 W
Largest power supply
DL380a Gen123,200 WHigher
DL380 Gen102U RackHigher
Rack height
DL380a Gen124U Rack
DL380 Gen10100 GbE class
Fastest network option
DL380a Gen12400 GbE classHigher
02 — Verdict
Which one, and why
Drawn from the measures above and each model’s own data sheet. Neither vendor publishes benchmark results for these servers, so nothing here claims one is “faster”.
Choose the DL380 Gen10 if…
Drive bays: 24 against 16 on the DL380a Gen12
Rack height: 2U Rack against 4U Rack on the DL380a Gen12
Expansion is the whole argument for this chassis. Three riser positions carry as many as eight PCIe 3.0 slots, and the pair of x16/x16/x16 GPU riser kits each take three single-width accelerators — six across two processors. The 1U DL360 Gen10, built from the identical processor table, reaches three slots in total.
Choose the DL380a Gen12 if…
Cores, fully populated: 288 against 56 on the DL380 Gen10
Memory ceiling: 8 TB against 3 TB on the DL380 Gen10
Accelerators: Up to 10 against Up to 8 on the DL380 Gen10
Ten double-wide GPU positions in 4U, with the H200 NVL, RTX PRO 6000 Blackwell, RTX PRO 6000D, L40S, L20 and L4 in HPE’s accelerator list.
03 — By workload
Where each one pulls ahead
Calls made on documented capacity only — cores, memory, bays, accelerators and network options — with the figures behind each one shown.
VirtualisationDL380 Gen10: 56 cores with 3 TB. DL380a Gen12: 288 cores with 8 TB.DL380a Gen12
Databases & in-memoryMemory ceiling 3 TB against 8 TB, across 24 and 32 DIMM slots.DL380a Gen12
Storage density24 bays in 2U against 16 in 4U.DL380 Gen10
AI & acceleration8 accelerators against 10 in the vendor documents.DL380a Gen12
Network throughputFastest card listed: 100 GbE class against 400 GbE class.DL380a Gen12
04 — Specifications
Side by side, differences first
Everything both documents state, grouped. The default view hides rows where the two machines are identical.
Processors
Every processor each vendor lists for the model, from its own document.
Specification
DL380 Gen10
DL380a Gen12
Processors listed
113
32
Most cores per processor
28
144
Highest processor TDP
205 W
350 W
Processor families
2nd Gen Intel Xeon Scalable (Platinum) · 1st Gen Intel Xeon Scalable (Platinum) · 2nd Gen Intel Xeon Scalable (Gold) · 1st Gen Intel Xeon Scalable (Gold) · 2nd Gen Intel Xeon Scalable (Silver) · 1st Gen Intel Xeon Scalable (Silver) · 2nd Gen Intel Xeon Scalable (Bronze) · 1st Gen Intel Xeon Scalable (Bronze)
Xeon 6 E-core · Xeon 6 P-core
Single-processor option
Yes
No
Memory
Specification
DL380 Gen10
DL380a Gen12
DIMM slots
24
32
Slots per processor
12
16
Largest module listed
512 GB
256 GB
Fastest rated speed
2,933 MT/s
6,400 MT/s
Memory types
RDIMM DDR4-2933 (2nd Gen Intel Xeon Scalable only) · RDIMM DDR4-2666 (1st Gen Intel Xeon Scalable only) · LRDIMM DDR4-2933 · Intel Optane Persistent Memory for HPE (2666 MT/s) + 1 more
RDIMM DDR5-6400
Storage
Bay counts are the maximum each document states, including rear and mid-chassis positions.
Specification
DL380 Gen10
DL380a Gen12
Maximum bays
24
16
Documented layouts
15
2
Bay sizes
2.5-inch · 3.5-inch
2.5-inch · E3.S
Boot devices
HPE NS204i-p x2 Lanes NVMe PCIe3 x8 OS Boot Device · 2 x M.2 SATA on the default primary riser; RAID 1 requires HPE FIO Enable Smart Array SW RAID (784308-B21) · HPE Smart Array S100i SR Gen10 SW RAID (embedded, 14 SATA ports of which 12 accessible) + 1 more
HPE NS204i-u v2 960GB NVMe Hot Plug Boot Optimized Storage Device · HPE NS204i-u v2 960GB NVMe SED Hot Plug Boot Optimized Storage Device · HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device + 1 more
Storage controllers
15
7
Accelerators & I/O
Specification
DL380 Gen10
DL380a Gen12
Accelerators supported
Up to 8
Up to 10
Double-wide cards listed
14
0
OCP slots
0
2
PCIe network slots
8
6
Network cards listed
22
36
Power & platform
Specification
DL380 Gen10
DL380a Gen12
Power-supply options
8
3
Output range
500–2,200 W
2,400–3,200 W
Input types
AC · −48 V DC · 277 VAC / HVDC
AC · 277 VAC / HVDC
Management
HPE iLO 5
HPE iLO 7
Chassis depthVendors measure depth differently — see each data sheet
SFF drives: 8.73 x 44.54 x 67.94 cm (3.44 x 17.54 x 26.75 in)
80.26 cm (31.60 in) deep
05 — The data
Processors, memory, bays and power
The same charts each data sheet carries, drawn to the same scale so the two ranges can be read against each other.
DL380 Gen10: processors by cores and TDP
2nd Gen Intel Xeon Scalable (Platinum) 141st Gen Intel Xeon Scalable (Platinum) 112nd Gen Intel Xeon Scalable (Gold) 471st Gen Intel Xeon Scalable (Gold) 232nd Gen Intel Xeon Scalable (Silver) 91st Gen Intel Xeon Scalable (Silver) 52nd Gen Intel Xeon Scalable (Bronze) 21st Gen Intel Xeon Scalable (Bronze) 2Bubble size = L3 cache · hover a bubble for the full SKU
DL380a Gen12: processors by cores and TDP
Xeon 6 E-core 6Xeon 6 P-core 26Bubble size = L3 cache · hover a bubble for the full SKU
DL380 Gen10: memory with every slot filled
DL380a Gen12: memory with every slot filled
DL380 Gen10: drive bays
Front panel
24 × 2.5" SAS/SATA at the front — 24 bays in total.
SAS/SATANVMeSAS/SATA + NVMe
DL380a Gen12: drive bays
Front panel
4 × 2.5" NVMe at the front — 4 bays in total.
SAS/SATANVMeSAS/SATA + NVMe
DL380 Gen10: power supplies
AC277 VAC / HVDC−48 V DC
DL380a Gen12: power supplies
AC277 VAC / HVDC
07 — Questions
DL380 Gen10 vs DL380a Gen12, answered
Is the DL380 Gen10 or the DL380a Gen12 the faster server?
Neither document publishes benchmark results, so this page compares what they do state. The DL380 Gen10 lists 113 processors up to 28 cores at 205 W; the DL380a Gen12 lists 32 up to 144 cores at 350 W. Fully populated that is 56 cores against 288.
Which holds more memory?
The DL380 Gen10 has 24 DIMM slots and a stated ceiling of 3.0 TB. The DL380a Gen12 has 32 and 8.0 TB.
Which takes more drives?
DL380 Gen10: 24 bays across 15 documented layouts. DL380a Gen12: 16 across 2. Counts include rear and mid-chassis positions where the vendor documents them.
Can either take GPUs?
DL380 Gen10: up to 8 accelerators, 14 double-wide cards listed. DL380a Gen12: up to 10, 0 double-wide listed.
Do they share any processors?
No. The two documents list different processors, so a like-for-like processor build is not possible across these two.
Where these figures come from. DL380 Gen10: HPE ProLiant DL380 Gen10 Server QuickSpecs (a00008180enw, Version 77, 16 June 2025) (HPE document). DL380a Gen12: HPE ProLiant Compute DL380a Gen12 QuickSpecs (Version 20 - 08-Sep-2026) (HPE document). Each claim on this page is derived from those documents, checked page by page on the two data sheets, and carries no pricing.