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Head-to-head · every figure from the vendor documents

Dell R660 vs Lenovo SR630 V4

A specification-by-specification comparison of the Dell PowerEdge R660 and the Lenovo ThinkSystem SR630 V4, built from Dell’s and Lenovo’s own documents. None of the headline measures favour the R660; 3 favour the SR630 V4, and they share no processors.

Bottom line. SR630 V4 leads on virtualisation, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Dell PowerEdge R660 front view with ten 2.5-inch drive bays, the left control panel, and VGA, USB and power button at the right
Dell PowerEdge
R660
1U Rack2 sockets32 DIMMiDRAC9
Configure the R660 →Full data sheet
VS
Lenovo ThinkSystem SR630 V4 1U server, front three-quarter view with the optional lockable security bezel in place
Lenovo ThinkSystem
SR630 V4
1U Rack2 sockets32 DIMMXClarity Controller 3
Configure the SR630 V4 →Full data sheet
01 — Scoreboard

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.

2
Processor sockets
2
128
Cores, fully populated
Largest listed processor × its socket count
Higher288
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
Higher2,000 W
1U Rack
Rack height
1U Rack
100 GbE class
Fastest network option
Higher800 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 V4 if…

  • Cores, fully populated: 288 against 128 on the R660
  • Largest power supply: 2,000 W against 1,800 W on the R660
  • Fastest network option: 800 GbE class against 100 GbE class on the R660
  • 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.
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 V4: 288 cores with 8 TB.SR630 V4
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 800 GbE class.SR630 V4
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.

SpecificationR660SR630 V4
Processors listed5134
Most cores per processor64144
Processor familiesXeon Max (HBM) · 4th Gen Xeon Scalable · 5th Gen Xeon ScalableXeon 6 P-core · Xeon 6 E-core

Memory

SpecificationR660SR630 V4
Fastest rated speed6,400 MT/s8,000 MT/s
Memory typesRDIMM DDR5-4800 · RDIMM DDR5-5600 · RDIMM DDR5-6400RDIMM 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.

SpecificationR660SR630 V4
Documented layouts1314
Boot devicesBOSS-N1Internal 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 controllers1020

Accelerators & I/O

SpecificationR660SR630 V4
OCP slots12
Network cards listed2630

Power & platform

SpecificationR660SR630 V4
Power-supply options810
Output range700–1,800 W800–2,000 W
Input typesAC · −48 V DC · 277 VAC / HVDCAC · 277 VAC / HVDC · −48 V DC
ManagementiDRAC9XClarity Controller 3
Chassis depthVendors measure depth differently — see each data sheet822.88 mm with bezel / 809.04 mm without bezel788 mm (31 in.)
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

Dell PowerEdge R660 processors0816243240485664100 W150 W200 W250 W300 W350 WCores per processorIntel Xeon Max 9480 — 56 cores / 112 threads · 350 W · 1.9 GHz base · 113 MB cache · DDR5-4800Intel Xeon Max 9470 — 52 cores / 104 threads · 350 W · 2 GHz base · 105 MB cache · DDR5-4800Intel Xeon Max 9460 — 40 cores / 80 threads · 350 W · 2.2 GHz base · 98 MB cache · DDR5-4800Intel Xeon Max 9462 — 32 cores / 64 threads · 350 W · 2.7 GHz base · 75 MB cache · DDR5-4800Intel Xeon Platinum 8480+ — 56 cores / 112 threads · 350 W · 2 GHz base · 105 MB cache · DDR5-4800Intel Xeon Platinum 8470Q — 52 cores / 104 threads · 350 W · 2.1 GHz base · 105 MB cache · DDR5-4800Intel Xeon Platinum 8470 — 52 cores / 104 threads · 350 W · 2 GHz base · 105 MB cache · DDR5-4800Intel Xeon Platinum 8471N — 52 cores / 104 threads · 300 W · 1.8 GHz base · 98 MB cache · DDR5-4800Intel Xeon Platinum 8470N — 52 cores / 104 threads · 300 W · 1.7 GHz base · 98 MB cache · DDR5-4800Intel Xeon Platinum 8468 — 48 cores / 96 threads · 350 W · 2.1 GHz base · 105 MB cache · DDR5-4800Intel Xeon Platinum 8460Y+ — 40 cores / 80 threads · 300 W · 2 GHz base · 105 MB cache · DDR5-4800Intel Xeon Platinum 8452Y — 36 cores / 72 threads · 300 W · 2 GHz base · 68 MB cache · DDR5-4800Intel Xeon Gold 6458Q — 32 cores / 64 threads · 350 W · 3.1 GHz base · 60 MB cache · DDR5-4800Intel Xeon Platinum 8462Y+ — 32 cores / 64 threads · 300 W · 2.8 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6454S — 32 cores / 64 threads · 270 W · 2.2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6430 — 32 cores / 64 threads · 270 W · 2.1 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6414U — 32 cores / 64 threads · 250 W · 2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6448Y — 32 cores / 64 threads · 225 W · 2.2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6438Y+ — 32 cores / 64 threads · 205 W · 2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6438N — 32 cores / 64 threads · 205 W · 2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6438M — 32 cores / 64 threads · 205 W · 2.2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6428N — 32 cores / 64 threads · 185 W · 1.8 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6421N — 32 cores / 64 threads · 185 W · 1.8 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 5420+ — 28 cores / 56 threads · 205 W · 2 GHz base · 53 MB cache · DDR5-4400Intel Xeon Gold 6442Y — 24 cores / 48 threads · 225 W · 2.6 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 5418Y — 24 cores / 48 threads · 185 W · 2 GHz base · 45 MB cache · DDR5-4400Intel Xeon Gold 5412U — 24 cores / 48 threads · 185 W · 2.1 GHz base · 45 MB cache · DDR5-4400Intel Xeon Gold 5418N — 24 cores / 48 threads · 165 W · 1.8 GHz base · 45 MB cache · DDR5-4400Intel Xeon Gold 5411N — 24 cores / 48 threads · 165 W · 1.9 GHz base · 45 MB cache · DDR5-4400Intel Xeon Silver 4416+ — 20 cores / 40 threads · 165 W · 2 GHz base · 38 MB cache · DDR5-4000Intel Xeon Gold 6444Y — 16 cores / 32 threads · 270 W · 3.5 GHz base · 45 MB cache · DDR5-4800Intel Xeon Gold 6426Y — 16 cores / 32 threads · 185 W · 2.6 GHz base · 38 MB cache · DDR5-4800Intel Xeon Gold 5416S — 16 cores / 32 threads · 150 W · 2 GHz base · 30 MB cache · DDR5-4400Intel Xeon Silver 4410Y — 12 cores / 24 threads · 150 W · 2 GHz base · 30 MB cache · DDR5-4000Intel Xeon Gold 6434 — 8 cores / 16 threads · 205 W · 3.7 GHz base · 23 MB cache · DDR5-4800Intel Xeon Gold 5415+ — 8 cores / 16 threads · 150 W · 2.9 GHz base · 23 MB cache · DDR5-4400Intel Xeon Bronze 3408U — 8 cores / 16 threads · 125 W · 1.8 GHz base · 23 MB cache · DDR5-4000Intel Xeon Platinum 8592+ — 64 cores / 128 threads · 350 W · 1.9 GHz base · 320 MB cache · DDR5-5600Intel Xeon Platinum 8580 — 60 cores / 120 threads · 350 W · 2 GHz base · 300 MB cache · DDR5-5600Intel Xeon Platinum 8568Y+ — 48 cores / 96 threads · 350 W · 2.3 GHz base · 300 MB cache · DDR5-5600Intel Xeon Platinum 8558U — 48 cores / 96 threads · 300 W · 2 GHz base · 260 MB cache · DDR5-4800Intel Xeon Platinum 8562Y+ — 32 cores / 64 threads · 300 W · 2.8 GHz base · 60 MB cache · DDR5-5600Intel Xeon Gold 6548N — 32 cores / 64 threads · 250 W · 2.8 GHz base · 60 MB cache · DDR5-5200Intel Xeon Gold 6548Y+ — 32 cores / 64 threads · 250 W · 2.5 GHz base · 60 MB cache · DDR5-5200Intel Xeon Gold 5512U — 28 cores / 56 threads · 185 W · 2.1 GHz base · 52.5 MB cache · DDR5-4800Intel Xeon Gold 6542Y — 24 cores / 48 threads · 250 W · 2.9 GHz base · 60 MB cache · DDR5-5200Intel Xeon Gold 6526Y — 16 cores / 32 threads · 195 W · 2.8 GHz base · 37.5 MB cache · DDR5-5200Intel Xeon Silver 4514Y — 16 cores / 32 threads · 150 W · 2 GHz base · 30 MB cache · DDR5-4400Intel Xeon Silver 4510 — 12 cores / 24 threads · 150 W · 2.4 GHz base · 30 MB cache · DDR5-4400Intel Xeon Gold 6534 — 8 cores / 16 threads · 195 W · 3.9 GHz base · 22.5 MB cache · DDR5-4800Intel Xeon Silver 4509Y — 8 cores / 16 threads · 125 W · 2.6 GHz base · 23 MB cache · DDR5-44008592+64 cores · 5.5 W/core — top SKU and most efficient
Xeon Max (HBM) 44th Gen Xeon Scalable 335th Gen Xeon Scalable 14Bubble size = L3 cache · hover a bubble for the full SKU

SR630 V4: processors by cores and TDP

Lenovo ThinkSystem SR630 V4 processors081624324048566472808896104112120128136144100 W150 W200 W250 W300 W350 WCores per processorIntel Xeon 6 6787P — 86 cores / 172 threads · 350 W · 2 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6 6781P — 80 cores / 160 threads · 350 W · 2 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6 6761P — 64 cores / 128 threads · 350 W · 2.5 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6 6767P — 64 cores / 128 threads · 350 W · 2.4 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6 6760P — 64 cores / 128 threads · 330 W · 2.2 GHz base · 320 MB cache · DDR5-6400Intel Xeon 6 6747P — 48 cores / 96 threads · 330 W · 2.7 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6 6741P — 48 cores / 96 threads · 300 W · 2.5 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6 6740P — 48 cores / 96 threads · 270 W · 2.1 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6 6736P — 36 cores / 72 threads · 205 W · 2 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6732P — 32 cores / 64 threads · 350 W · 3.8 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6745P — 32 cores / 64 threads · 300 W · 3.1 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6 6737P — 32 cores / 64 threads · 270 W · 2.9 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6730P — 32 cores / 64 threads · 250 W · 2.5 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6 6731P — 32 cores / 64 threads · 245 W · 2.5 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6530P — 32 cores / 64 threads · 225 W · 2.3 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6527P — 24 cores / 48 threads · 255 W · 3 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6521P — 24 cores / 48 threads · 225 W · 2.6 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6520P — 24 cores / 48 threads · 210 W · 2.4 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6725P — 16 cores / 32 threads · 235 W · 3.7 GHz base · 192 MB cache · DDR5-6400Intel Xeon 6 6724P — 16 cores / 32 threads · 210 W · 3.6 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6 6517P — 16 cores / 32 threads · 190 W · 3.2 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6 6511P — 16 cores / 32 threads · 150 W · 2.3 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6 6515P — 16 cores / 32 threads · 150 W · 2.3 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6 6505P — 12 cores / 24 threads · 150 W · 2.2 GHz base · 48 MB cache · DDR5-6400Intel Xeon 6 6714P — 8 cores / 16 threads · 165 W · 4 GHz base · 48 MB cache · DDR5-6400Intel Xeon 6 6507P — 8 cores / 16 threads · 150 W · 3.5 GHz base · 48 MB cache · DDR5-6400Intel Xeon 6 6503P — 8 cores / 16 threads · 135 W · 2.8 GHz base · 48 MB cache · DDR5-6400Intel Xeon 6 6780E — 144 cores / 144 threads · 330 W · 2.2 GHz base · 108 MB cache · DDR5-6400Intel Xeon 6 6766E — 144 cores / 144 threads · 250 W · 1.9 GHz base · 108 MB cache · DDR5-6400Intel Xeon 6 6756E — 128 cores / 128 threads · 225 W · 1.8 GHz base · 96 MB cache · DDR5-6400Intel Xeon 6 6746E — 112 cores / 112 threads · 250 W · 2 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6 6731E — 96 cores / 96 threads · 250 W · 2.2 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6 6740E — 96 cores / 96 threads · 250 W · 2.4 GHz base · 96 MB cache · DDR5-6400Intel Xeon 6 6710E — 64 cores / 64 threads · 205 W · 2.4 GHz base · 96 MB cache · DDR5-56006 6780E144 cores — the top SKU6 6766E1.7 W/core — most efficient
Xeon 6 P-core 27Xeon 6 E-core 7Bubble size = L3 cache · hover a bubble for the full SKU

R660: memory with every slot filled

16 GB512 GB32 GB1 TB64 GB2 TB96 GB3 TB128 GB4 TB256 GB8 TB32 slots · 16 per processor · each tick = one DIMM

SR630 V4: memory with every slot filled

16 GB512 GB32 GB1 TB64 GB2 TB96 GB3 TB128 GB4 TB256 GB8 TB32 slots · 16 per processor · each tick = one DIMM

R660: drive bays

Front panel

16 × EDSFF NVMe at the front — 16 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR630 V4: drive bays

Front panel

10 × 2.5" SAS/SATA at the front — 10 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

R660: power supplies

0500100015002000700 W Titanium — Mixed mode HLAC (200-240 V AC / 240 V DC); no 100-120 V low-line support; 60 mm700Titanium800 W N/A (-48 V DC) — -(48-60) V DC input (LVDC); 60 mm800DC800 W Platinum — Mixed mode (100-240 V AC / 240 V DC); 60 mm800Platinum1100 W N/A (-48 V DC) — -(48-60) V DC input (LVDC); 60 mm1100DC1100 W Titanium — Mixed mode (100-240 V AC / 240 V DC); 1050 W at low line 100-120 V; 60 mm10501100Titanium1400 W Platinum — Mixed mode (100-240 V AC / 240 V DC); 1050 W at low line 100-120 V; 60 mm10501400Platinum1400 W Titanium — Mixed mode 277 V AC and HVDC (336 V DC); 60 mm1400Titanium1800 W Titanium — Mixed mode HLAC (200-240 V AC / 240 V DC); no 100-120 V low-line support; 60 mm1800TitaniumWatts · dashed line = output at 100–120 V low line
AC277 VAC / HVDC−48 V DC

SR630 V4: power supplies

0500100015002000800 W Platinum — CRPS v1.5, 230V/115V, min qty 2800Platinum800 W Titanium — CRPS Premium, 230V/115V, min qty 1800Titanium800 W Titanium — CRPS v1.4, 230V/115V, min qty 2800Titanium1300 W not stated — -48V DC CRPS Premium (-44V to -54V DC), min qty 21300DC1300 W Platinum — CRPS v1.5, 230V/115V (1000W at 115V), min qty 21300Platinum1300 W Platinum — CRPS v2.4, 230V/115V (1000W at 115V), min qty 21300Platinum1300 W Platinum — HVAC/HVDC CRPS Premium, 200-277V AC / 240-380V DC, min qty 21300Platinum1300 W Titanium — CRPS Premium, 230V/115V (1000W at 115V), min qty 11300Titanium1300 W Titanium — CRPS v2.4, 230V/115V (1000W at 115V), min qty 21300Titanium2000 W Titanium — CRPS Premium, 230V only, min qty 22000TitaniumWatts · dashed line = output at 100–120 V low line
AC277 VAC / HVDC−48 V DC
07 — Questions

R660 vs SR630 V4, answered

Is the R660 or the SR630 V4 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 V4 lists 34 up to 144 cores at 350 W. Fully populated that is 128 cores against 288.

Which holds more memory?

The R660 has 32 DIMM slots and a stated ceiling of 8 TB. The SR630 V4 has 32 and 8 TB.

Which takes more drives?

R660: 16 bays across 13 documented layouts. SR630 V4: 16 across 14. 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 V4: up to 3, 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. R660: Dell PowerEdge R660 Technical Guide (June 2026, Rev. A01) (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.

Other comparisons in this class

R660 vs DL360 Gen11Dell vs HPER660 vs DL360 Gen12Dell vs HPER660 vs SR630 V3Dell vs LenovoR6625 vs SR630 V4Dell vs LenovoR670 vs SR630 V4Dell vs LenovoR6725 vs SR630 V4Dell vs LenovoDL360 Gen11 vs SR630 V4HPE vs LenovoDL360 Gen12 vs SR630 V4HPE vs Lenovo

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