Dell R770 vs HPE DL385 Gen11
A specification-by-specification comparison of the Dell PowerEdge R770 and the HPE ProLiant DL385 Gen11, built from Dell’s and HPE’s own documents. 2 headline measures favour the R770, 3 favour the DL385 Gen11, and they share no processors.
Bottom line. R770 leads on virtualisation, databases and in-memory work. DL385 Gen11 leads on storage density, AI and acceleration. 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 R770 if…
- Memory ceiling: 8 TB against 6 TB on the DL385 Gen11
- Largest power supply: 3,200 W against 2,200 W on the DL385 Gen11
- Forty front E3.S Gen5 bays plus four at the rear; Dell puts the front alone at 2457.6 TB raw.
Choose the DL385 Gen11 if…
- Cores, fully populated: 320 against 288 on the R770
- Drive bays: 48 against 44 on the R770
- Accelerators: Up to 8 against Up to 6 on the R770
- A dedicated GPU chassis takes four double-wide cards — 600 W H200 NVL and RTX PRO 6000 Blackwell included — or eight single-wide L4s.
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 | R770 | DL385 Gen11 |
|---|---|---|
| Processors listed | 23 | 39 |
| Most cores per processor | 144 | 160 |
| Highest processor TDP | 350 W | 400 W |
| Processor families | Xeon 6 E-core · Xeon 6 P-core | AMD EPYC 9004 · AMD EPYC 9005 |
| Single-processor option | No | Yes |
Memory
| Specification | R770 | DL385 Gen11 |
|---|---|---|
| DIMM slots | 32 | 24 |
| Slots per processor | 16 | 12 |
| Memory types | RDIMM DDR5-6400 | RDIMM DDR5-4800 · RDIMM DDR5-6400 |
Storage
Bay counts are the maximum each document states, including rear and mid-chassis positions.
| Specification | R770 | DL385 Gen11 |
|---|---|---|
| Maximum bays | 44 | 48 |
| Documented layouts | 11 | 15 |
| Bay sizes | E3.S · 2.5-inch | 3.5-inch · 2.5-inch · E3.S |
| Boot devices | BOSS-N1 DC-MHS (HW RAID 1, 2 x M.2 NVMe SSD 480 GB or 960 GB) · M.2 Interposer board (DC-MHS): 2 x M.2 NVMe SSDs · Internal USB | HPE NS204i-u Gen11 NVMe Hot Plug Boot Optimized Storage Device · HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device · HPE ProLiant DL3X5 Gen11 NS204i-u NVMe Hot Plug Boot Device Cable Kit + 2 more |
| Storage controllers | 5 | 10 |
Accelerators & I/O
| Specification | R770 | DL385 Gen11 |
|---|---|---|
| Accelerators supported | Up to 6 | Up to 8 |
| Double-wide cards listed | 5 | 4 |
| Network cards listed | 14 | 30 |
Power & platform
| Specification | R770 | DL385 Gen11 |
|---|---|---|
| Power-supply options | 11 | 5 |
| Output range | 800–3,200 W | 800–2,200 W |
| Management | iDRAC10 | HPE iLO 6 |
| Chassis depthVendors measure depth differently — see each data sheet | 801.51 mm without bezel (rear I/O) / 814.52 mm without bezel (front I/O) | SFF/EDSFF CTO 68.89 cm (27.12 in) |
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.
R770: processors by cores and TDP
DL385 Gen11: processors by cores and TDP
R770: memory with every slot filled
DL385 Gen11: memory with every slot filled
R770: drive bays
Front panel
40 × EDSFF NVMe at the front — 40 bays in total.
DL385 Gen11: drive bays
Front panel
48 × 2.5" SAS/SATA + NVMe at the front — 48 bays in total.
R770: power supplies
DL385 Gen11: power supplies
R770 vs DL385 Gen11, answered
Is the R770 or the DL385 Gen11 the faster server?
Neither document publishes benchmark results, so this page compares what they do state. The R770 lists 23 processors up to 144 cores at 350 W; the DL385 Gen11 lists 39 up to 160 cores at 400 W. Fully populated that is 288 cores against 320.
Which holds more memory?
The R770 has 32 DIMM slots and a stated ceiling of 8 TB. The DL385 Gen11 has 24 and 6.0 TB.
Which takes more drives?
R770: 44 bays across 11 documented layouts. DL385 Gen11: 48 across 15. Counts include rear and mid-chassis positions where the vendor documents them.
Can either take GPUs?
R770: up to 6 accelerators, 5 double-wide cards listed. DL385 Gen11: up to 8, 4 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. R770: Dell PowerEdge R770 Technical Guide (May 2026) (Dell document). DL385 Gen11: HPE ProLiant DL385 Gen11 QuickSpecs (Version 47 - 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.
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