Dell R7615 vs HPE DL340e Gen12
A specification-by-specification comparison of the Dell PowerEdge R7615 and the HPE ProLiant Compute DL340e Gen12, built from Dell’s and HPE’s own documents. 3 headline measures favour the R7615, 3 favour the DL340e Gen12, and they share no processors.
Bottom line. R7615 leads on virtualisation, databases and in-memory work, storage density, AI and acceleration. DL340e Gen12 leads on network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.
The measures that decide it
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.
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 R7615 if…
- Memory ceiling: 3 TB against 2 TB on the DL340e Gen12
- Drive bays: 36 against 34 on the DL340e Gen12
- Accelerators: Up to 6 against None listed on the DL340e Gen12
- Three double-wide 300 W GPUs from a one-socket server — one more than the two-socket R7625 is rated for.
Choose the DL340e Gen12 if…
- Cores, fully populated: 144 against 128 on the R7615
- Largest power supply: 3,200 W against 2,400 W on the R7615
- Fastest network option: 400 GbE class against 100 GbE class on the R7615
- Up to 24 × 3.5-inch SAS/SATA bays in 2U, and HPE’s capacity table fills them with 26 TB disks for 624 TB raw.
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.
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 | R7615 | DL340e Gen12 |
|---|---|---|
| Processors listed | 23 | 30 |
| Most cores per processor | 128 | 144 |
| Highest processor TDP | 400 W | 350 W |
| Processor families | AMD EPYC 9004 | Xeon 6 E-core · Xeon 6 P-core |
Memory
| Specification | R7615 | DL340e Gen12 |
|---|---|---|
| DIMM slots | 12 | 16 |
| Slots per processor | 12 | 16 |
| Largest module listed | 256 GB | 128 GB |
| Fastest rated speed | 4,800 MT/s | 6,400 MT/s |
| Memory types | RDIMM DDR5-5600/6400 (runs at 4800 MT/s platform max, 1DPC) | RDIMM DDR5-6400 (HPE DDR5 Smart Memory, Registered) |
Storage
Bay counts are the maximum each document states, including rear and mid-chassis positions.
| Specification | R7615 | DL340e Gen12 |
|---|---|---|
| Maximum bays | 36 | 34 |
| Documented layouts | 24 | 3 |
| Bay sizes | 3.5-inch · 2.5-inch · E3.S | 3.5-inch · E3.S |
| Boot devices | BOSS-N1 (HWRAID 2 x M.2 SSDs) · IDSDM | HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device · 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 + 2 more |
| Storage controllers | 10 | 8 |
Accelerators & I/O
| Specification | R7615 | DL340e Gen12 |
|---|---|---|
| Accelerators supported | Up to 6 | None listed |
| Double-wide cards listed | 7 | 0 |
| OCP slots | 1 | 2 |
| PCIe network slots | 8 | 6 |
| Network cards listed | 17 | 23 |
Power & platform
| Specification | R7615 | DL340e Gen12 |
|---|---|---|
| Power-supply options | 9 | 7 |
| Output range | 700–2,400 W | 800–3,200 W |
| Input types | AC · −48 V DC · 277 VAC / HVDC | AC · −48 V DC |
| Management | iDRAC9 | HPE iLO 7 |
| Chassis depthVendors measure depth differently — see each data sheet | 772.13 mm with bezel / 758.29 mm without bezel | LFF chassis: 80.65 cm / 32.36 in deep (8.75 x 44.80 x 80.65 cm H x W x D) |
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.
R7615: processors by cores and TDP
DL340e Gen12: processors by cores and TDP
R7615: memory with every slot filled
DL340e Gen12: memory with every slot filled
R7615: drive bays
Front panel
Rear module
32 × EDSFF SAS/SATA at the front, plus 4 × EDSFF NVMe at the rear — 36 bays in total.
DL340e Gen12: drive bays
Front panel
24 × 3.5" SAS/SATA at the front — 24 bays in total.
R7615: power supplies
DL340e Gen12: power supplies
R7615 vs DL340e Gen12, answered
Is the R7615 or the DL340e Gen12 the faster server?
Neither document publishes benchmark results, so this page compares what they do state. The R7615 lists 23 processors up to 128 cores at 400 W; the DL340e Gen12 lists 30 up to 144 cores at 350 W. Fully populated that is 128 cores against 144.
Which holds more memory?
The R7615 has 12 DIMM slots and a stated ceiling of 3 TB. The DL340e Gen12 has 16 and 2TB.
Which takes more drives?
R7615: 36 bays across 24 documented layouts. DL340e Gen12: 34 across 3. Counts include rear and mid-chassis positions where the vendor documents them.
Can either take GPUs?
R7615: up to 6 accelerators, 7 double-wide cards listed. DL340e Gen12: no accelerator option in its document.
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. R7615: Dell PowerEdge R7615 Technical Guide (July 2026, Rev. A07) (Dell document). DL340e Gen12: HPE ProLiant Compute DL340e Gen12 QuickSpecs (Version 5 - August 3, 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.
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