Head-to-head · every figure from the vendor documents
Dell R660 vs Lenovo SR630 V3
A specification-by-specification comparison of the Dell PowerEdge R660 and the Lenovo ThinkSystem SR630 V3, built from Dell’s and Lenovo’s own documents. None of the headline measures favour the R660; 1 favour the SR630 V3, and 45 processors appear in both lists.
Bottom line. SR630 V3 leads on 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.
2
Processor sockets
2
128
Cores, fully populated
Largest listed processor × its socket count
128
8 TB
Memory ceiling
As each document states it
8 TB
16
Drive bays
16
Up to 3
Accelerators
Up to 3
1,800 W
Largest power supply
1,800 W
1U Rack
Rack height
1U Rack
100 GbE class
Fastest network option
Higher200 GbE class
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 R660 if…
The same 51 processors and 32 DDR5 slots as the 2U R760 in a 1U chassis, with up to 64 cores per socket and 8 TB of memory.
Choose the SR630 V3 if…
Fastest network option: 200 GbE class against 100 GbE class on the R660
Two sockets, 32 DDR5 slots and an 8 TB memory ceiling in 1U — the same ceiling Lenovo gives the 2U SR650 V3.
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.
VirtualisationR660: 128 cores with 8 TB. SR630 V3: 128 cores with 8 TB.Line ball
Databases & in-memoryMemory ceiling 8 TB against 8 TB, across 32 and 32 DIMM slots.Line ball
Storage density16 bays in 1U against 16 in 1U.Line ball
AI & acceleration3 accelerators against 3 in the vendor documents.Line ball
Network throughputFastest card listed: 100 GbE class against 200 GbE class.SR630 V3
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
R660
SR630 V3
Processors listed
51
84
Highest processor TDP
350 W
385 W
Processor families
Xeon Max (HBM) · 4th Gen Xeon Scalable · 5th Gen Xeon Scalable
Chassis depthVendors measure depth differently — see each data sheet
822.88 mm with bezel / 809.04 mm without bezel
773 mm
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.
R660: processors by cores and TDP
Xeon Max (HBM) 44th Gen Xeon Scalable 335th Gen Xeon Scalable 14Bubble size = L3 cache · hover a bubble for the full SKU
SR630 V3: processors by cores and TDP
5th Gen Xeon Scalable 324th Gen Xeon Scalable 52Bubble size = L3 cache · hover a bubble for the full SKU
R660: memory with every slot filled
SR630 V3: memory with every slot filled
R660: drive bays
Front panel
16 × EDSFF NVMe at the front — 16 bays in total.
SAS/SATANVMeSAS/SATA + NVMe
SR630 V3: drive bays
Front panel
16 × EDSFF NVMe at the front — 16 bays in total.
SAS/SATANVMeSAS/SATA + NVMe
R660: power supplies
AC277 VAC / HVDC−48 V DC
SR630 V3: power supplies
AC−48 V DC
06 — Like for like
45 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: 6 more are exclusive to the R660 and 39 to the SR630 V3.
Processor
Cores
TDP
Intel Xeon Platinum 8592+
64
350 W
Intel Xeon Platinum 8580
60
350 W
Intel Xeon Platinum 8480+
56
350 W
Intel Xeon Platinum 8470Q
52
350 W
Intel Xeon Platinum 8470N
52
300 W
Intel Xeon Platinum 8470
52
350 W
Intel Xeon Platinum 8468
48
350 W
Intel Xeon Platinum 8568Y+
48
350 W
Intel Xeon Platinum 8558U
48
300 W
Intel Xeon Platinum 8460Y+
40
300 W
Intel Xeon Platinum 8452Y
36
300 W
Intel Xeon Gold 6454S
32
270 W
07 — Questions
R660 vs SR630 V3, answered
Is the R660 or the SR630 V3 the faster server?
Neither document publishes benchmark results, so this page compares what they do state. The R660 lists 51 processors up to 64 cores at 350 W; the SR630 V3 lists 84 up to 64 cores at 385 W. Fully populated that is 128 cores against 128.
Which holds more memory?
The R660 has 32 DIMM slots and a stated ceiling of 8 TB. The SR630 V3 has 32 and 8 TB.
Which takes more drives?
R660: 16 bays across 13 documented layouts. SR630 V3: 16 across 17. Counts include rear and mid-chassis positions where the vendor documents them.
Can either take GPUs?
R660: up to 3 accelerators, 0 double-wide cards listed. SR630 V3: up to 3, 0 double-wide listed.
Do they share any processors?
Yes — 45 processors appear in both documents, including the Intel Xeon Platinum 8592+. That makes a like-for-like build possible on either server.
Where these figures come from. R660: Dell PowerEdge R660 Technical Guide (June 2026, Rev. A01) (Dell document). SR630 V3: Lenovo ThinkSystem SR630 V3 Server Product Guide (publication date is not printed in the text export) (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.