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

Dell R6625 vs Lenovo SR630 V4

A specification-by-specification comparison of the Dell PowerEdge R6625 and the Lenovo ThinkSystem SR630 V4, built from Dell’s and Lenovo’s own documents. None of the headline measures favour the R6625; 5 favour the SR630 V4, and they share no processors.

Bottom line. SR630 V4 leads on virtualisation, databases and in-memory work, AI and acceleration, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Dell PowerEdge R6625 front view with ten 2.5-inch drive bays, the left control panel and VGA, USB and power button on the right
Dell PowerEdge
R6625
1U Rack2 sockets24 DIMMiDRAC9
Configure the R6625 →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
256
Cores, fully populated
Largest listed processor × its socket count
Higher288
6 TB
Memory ceiling
As each document states it
Higher8 TB
16
Drive bays
16
Up to 2
Accelerators
HigherUp 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 R6625 if…

  • Two sockets in one rack unit: a pair of 128-core 9754s gives 256 cores, and Dell rates them for air at 30°C with the 8 × 2.5-inch NVMe front or no backplane.

Choose the SR630 V4 if…

  • Cores, fully populated: 288 against 256 on the R6625
  • Memory ceiling: 8 TB against 6 TB on the R6625
  • Accelerators: Up to 3 against Up to 2 on the R6625
  • 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.

VirtualisationR6625: 256 cores with 6 TB. SR630 V4: 288 cores with 8 TB.SR630 V4
Databases & in-memoryMemory ceiling 6 TB against 8 TB, across 24 and 32 DIMM slots.SR630 V4
Storage density16 bays in 1U against 16 in 1U.Line ball
AI & acceleration2 accelerators against 3 in the vendor documents.SR630 V4
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.

SpecificationR6625SR630 V4
Processors listed1934
Most cores per processor128144
Highest processor TDP360 W350 W
Processor familiesAMD EPYC 9004Xeon 6 P-core · Xeon 6 E-core

Memory

SpecificationR6625SR630 V4
DIMM slots2432
Slots per processor1216
Fastest rated speed6,400 MT/s8,000 MT/s
Memory typesRDIMM DDR5-4800 · RDIMM DDR5-5600 · RDIMM DDR5-6400 · 3DS RDIMM DDR5RDIMM 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.

SpecificationR6625SR630 V4
Bay sizes3.5-inch · 2.5-inch · E3.S2.5-inch · E3.S
Boot devicesBOSS-N1 · IDSDMInternal 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

SpecificationR6625SR630 V4
Accelerators supportedUp to 2Up to 3
OCP slots12
Network cards listed1730

Power & platform

SpecificationR6625SR630 V4
Power-supply options710
Output range800–1,800 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 sheet822.89 mm with bezel / 809.05 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.

R6625: processors by cores and TDP

Dell PowerEdge R6625 processors081624324048566472808896104112120128200 W250 W300 W350 W400 WCores per processorAMD EPYC 9754 — 128 cores / 256 threads · 360 W · 2.25 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9734 — 112 cores / 224 threads · 340 W · 2.2 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9654 — 96 cores / 192 threads · 360 W · 2.4 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9684X — 96 cores / 192 threads · 320 W · 2.55 GHz base · 1152 MB cache · DDR5-4800AMD EPYC 9634 — 84 cores / 168 threads · 290 W · 2.25 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9554 — 64 cores / 128 threads · 360 W · 3.1 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9534 — 64 cores / 128 threads · 280 W · 2.45 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9474F — 48 cores / 96 threads · 360 W · 3.6 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9454 — 48 cores / 96 threads · 290 W · 2.75 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9384X — 32 cores / 64 threads · 320 W · 3.1 GHz base · 768 MB cache · DDR5-4800AMD EPYC 9374F — 32 cores / 64 threads · 320 W · 3.85 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9354 — 32 cores / 64 threads · 280 W · 3.25 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9334 — 32 cores / 64 threads · 210 W · 2.7 GHz base · 128 MB cache · DDR5-4800AMD EPYC 9274F — 24 cores / 48 threads · 320 W · 4.05 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9254 — 24 cores / 48 threads · 200 W · 2.9 GHz base · 128 MB cache · DDR5-4800AMD EPYC 9224 — 24 cores / 48 threads · 200 W · 2.5 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9184X — 16 cores / 32 threads · 320 W · 3.55 GHz base · 768 MB cache · DDR5-4800AMD EPYC 9174F — 16 cores / 32 threads · 320 W · 4.1 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9124 — 16 cores / 32 threads · 200 W · 3 GHz base · 64 MB cache · DDR5-4800EPYC 9754128 cores · 2.8 W/core — top SKU and most efficient
AMD EPYC 9004 19Bubble 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

R6625: memory with every slot filled

16 GB384 GB32 GB768 GB64 GB1.5 TB96 GB2.3 TB128 GB3 TB256 GB6 TB24 slots · 12 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

R6625: 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

R6625: power supplies

0500100015002000800 W Platinum — Mixed mode (100-240 V AC / 240 V HVDC); 60 mm800Platinum1100 W N/A (-48 V DC) — LVDC -48 to -60 V DC input; 60 mm1100DC1100 W Titanium — Mixed mode (100-240 V AC / 240 V HVDC); 1050 W at low line; 60 mm10501100Titanium1400 W Platinum — Mixed mode (100-240 V AC / 240 V HVDC); 1050 W at low line; 60 mm10501400Platinum1400 W Titanium — Mixed mode (100-240 V AC / 240 V HVDC); 1050 W at low line; 60 mm10501400Titanium1400 W Titanium — Mixed mode 277 V AC or 336 V HVDC (Table 2 only; not in Tables 33/34)1400Titanium1800 W Titanium — Mixed mode (Table 2: 100-240 V AC / 240 V HVDC; spec sheet: 200-240 V AC); no low-line rating (highline only per Table 33); 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

R6625 vs SR630 V4, answered

Is the R6625 or the SR630 V4 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The R6625 lists 19 processors up to 128 cores at 360 W; the SR630 V4 lists 34 up to 144 cores at 350 W. Fully populated that is 256 cores against 288.

Which holds more memory?

The R6625 has 24 DIMM slots and a stated ceiling of 6 TB. The SR630 V4 has 32 and 8 TB.

Which takes more drives?

R6625: 16 bays across 14 documented layouts. SR630 V4: 16 across 14. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

R6625: up to 2 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. R6625: Dell PowerEdge R6625 Technical Guide (July 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.

Other comparisons in this class

R660 vs SR630 V4Dell vs LenovoR6625 vs DL365 Gen11Dell vs HPER6625 vs DL360 Gen12Dell vs HPER6625 vs SR645 V3Dell 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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