Dell R670 vs Lenovo SR630 V4
A specification-by-specification comparison of the Dell PowerEdge R670 and the Lenovo ThinkSystem SR630 V4, built from Dell’s and Lenovo’s own documents. 1 headline measure favours the R670, 2 favour the SR630 V4, and 23 processors appear in both lists.
Bottom line. R670 leads on storage density. SR630 V4 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 R670 if…
- Drive bays: 22 against 16 on the SR630 V4
- Up to 144 E-cores per socket — 288 cores in one rack unit — or 86 P-cores where per-core speed matters, all from one list of 23 processors.
Choose the SR630 V4 if…
- Largest power supply: 2,000 W against 1,800 W on the R670
- Fastest network option: 800 GbE class against 400 GbE class on the R670
- Two processor families in one 1U chassis: 27 Xeon 6 P-core SKUs of up to 86 cores, and seven 6700E E-core SKUs of up to 144 cores for thread-dense scale-out work.
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 | R670 | SR630 V4 |
|---|---|---|
| Processors listed | 23 | 34 |
| Processor families | Xeon 6 E-core · Xeon 6 P-core | Xeon 6 P-core · Xeon 6 E-core |
| Single-processor option | No | Yes |
Memory
| Specification | R670 | SR630 V4 |
|---|---|---|
| Fastest rated speed | 6,400 MT/s | 8,000 MT/s |
| Memory types | RDIMM DDR5-6400 | RDIMM DDR5-6400 · 3DS RDIMM DDR5-6400 · MRDIMM 8000 MHz (P-core CPUs only) · CXL 2.0 memory modules (E3.S 2T, P-core CPUs only) |
Storage
Bay counts are the maximum each document states, including rear and mid-chassis positions.
| Specification | R670 | SR630 V4 |
|---|---|---|
| Maximum bays | 22 | 16 |
| Documented layouts | 8 | 14 |
| Bay sizes | E3.S · 2.5-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 | Internal M.2 (2 drives): B550i-2i / B545i-2i / B350i-2i · Rear hot-swap M.2 (2 drives): B550p-2HS / B540p-2HS · Front hot-swap M.2 (2 drives): B550d-2HS / B540d-2HS |
| Storage controllers | 5 | 20 |
Accelerators & I/O
| Specification | R670 | SR630 V4 |
|---|---|---|
| Network cards listed | 14 | 30 |
Power & platform
| Specification | R670 | SR630 V4 |
|---|---|---|
| Power-supply options | 8 | 10 |
| Output range | 800–1,800 W | 800–2,000 W |
| Input types | AC · 277 VAC / HVDC | AC · 277 VAC / HVDC · −48 V DC |
| Management | iDRAC10 | XClarity Controller 3 |
| Chassis depthVendors measure depth differently — see each data sheet | 815.14 mm without bezel (rear I/O) / 829.44 mm without bezel (front I/O) | 788 mm (31 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.
R670: processors by cores and TDP
SR630 V4: processors by cores and TDP
R670: memory with every slot filled
SR630 V4: memory with every slot filled
R670: drive bays
Front panel
20 × EDSFF NVMe at the front — 20 bays in total.
SR630 V4: drive bays
Front panel
10 × 2.5" SAS/SATA at the front — 10 bays in total.
R670: power supplies
SR630 V4: power supplies
23 processors you can order in either
Both vendor documents list these parts, so a build can be matched across the two and the comparison comes down to the chassis: 0 more are exclusive to the R670 and 11 to the SR630 V4.
| Processor | Cores | TDP |
|---|---|---|
| Intel Xeon 6 6780E | 144 | 330 W |
| Intel Xeon 6 6766E | 144 | 250 W |
| Intel Xeon 6 6756E | 128 | 225 W |
| Intel Xeon 6 6746E | 112 | 250 W |
| Intel Xeon 6 6740E | 96 | 250 W |
| Intel Xeon 6 6787P | 86 | 350 W |
| Intel Xeon 6 6710E | 64 | 205 W |
| Intel Xeon 6 6767P | 64 | 350 W |
| Intel Xeon 6 6760P | 64 | 330 W |
| Intel Xeon 6 6747P | 48 | 330 W |
| Intel Xeon 6 6740P | 48 | 270 W |
| Intel Xeon 6 6736P | 36 | 205 W |
R670 vs SR630 V4, answered
Is the R670 or the SR630 V4 the faster server?
Neither document publishes benchmark results, so this page compares what they do state. The R670 lists 23 processors up to 144 cores at 350 W; the SR630 V4 lists 34 up to 144 cores at 350 W. Fully populated that is 288 cores against 288.
Which holds more memory?
The R670 has 32 DIMM slots and a stated ceiling of 8 TB. The SR630 V4 has 32 and 8 TB.
Which takes more drives?
R670: 22 bays across 8 documented layouts. SR630 V4: 16 across 14. Counts include rear and mid-chassis positions where the vendor documents them.
Can either take GPUs?
R670: up to 3 accelerators, 0 double-wide cards listed. SR630 V4: up to 3, 0 double-wide listed.
Do they share any processors?
Yes — 23 processors appear in both documents, including the Intel Xeon 6 6780E. That makes a like-for-like build possible on either server.
Where these figures come from. R670: Dell PowerEdge R670 Technical Guide (May 2026, Rev. A07) (Dell document). SR630 V4: Lenovo ThinkSystem SR630 V4 Server Product Guide (September 8, 2026 (created or updated)) (Lenovo 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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