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

Dell R760xd2 vs Lenovo SR650i V4

A specification-by-specification comparison of the Dell PowerEdge R760xd2 and the Lenovo ThinkSystem SR650i V4, built from Dell’s and Lenovo’s own documents. 2 headline measures favour the R760xd2, 1 favours the SR650i V4, and they share no processors.

Bottom line. R760xd2 leads on virtualisation, databases and in-memory work, storage density. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Dell PowerEdge R760xd2 front with the mid-bay drawer pulled out: twelve 3.5-inch drives at the front and twelve more in the mid bay
Dell PowerEdge
R760xd2
2U Rack2 sockets16 DIMMiDRAC9
Configure the R760xd2 →Full data sheet
VS
Lenovo ThinkSystem SR650i V4 Inference Model front: eight 2.5-inch drive bays in the centre, flanked by the front GPU riser openings
Lenovo ThinkSystem
SR650i V4
2U Rack2 sockets32 DIMMXClarity Controller 3
Configure the SR650i 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
64
Cores, fully populated
Largest listed processor × its socket count
64
1.5 TBHigher
Memory ceiling
As each document states it
0.5 TB
28Higher
Drive bays
8
Up to 2
Accelerators
Up to 2
1,800 W
Largest power supply
Higher3,200 W
2U Rack
Rack height
2U Rack
25 GbE class
Fastest network option
25 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 R760xd2 if…

  • Memory ceiling: 1.5 TB against 0.5 TB on the SR650i V4
  • Drive bays: 28 against 8 on the SR650i V4
  • Twenty-four 3.5-inch bays inside 2U — twelve at the front, twelve in a mid-bay drawer — plus a rear module for four 3.5-inch SAS/SATA drives or NVMe instead (4 × 2.5-inch in carriers, 2 × U.2 or 4 × E3.S).

Choose the SR650i V4 if…

  • Largest power supply: 3,200 W against 1,800 W on the R760xd2
  • 192 GB of GPU memory from a pair of RTX PRO 6000 Blackwell Server Edition cards from NVIDIA, each running in Lenovo’s full 600 W configuration.
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.

VirtualisationR760xd2: 64 cores with 1.5 TB. SR650i V4: 64 cores with 0.5 TB.R760xd2
Databases & in-memoryMemory ceiling 1.5 TB against 0.5 TB, across 16 and 32 DIMM slots.R760xd2
Storage density28 bays in 2U against 8 in 2U.R760xd2
AI & acceleration2 accelerators against 2 in the vendor documents.Line ball
Network throughputFastest card listed: 25 GbE class against 25 GbE class.Line ball
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.

SpecificationR760xd2SR650i V4
Processors listed151
Highest processor TDP185 W225 W
Processor families4th Gen Xeon Scalable · 5th Gen Xeon ScalableXeon 6 P-core
Single-processor optionYesNo

Memory

SpecificationR760xd2SR650i V4
DIMM slots1632
Slots per processor816
Largest module listed96 GB64 GB
Memory typesRDIMM DDR5-4800 · RDIMM DDR5-5600 · RDIMM DDR5-6400RDIMM DDR5-6400

Storage

Bay counts are the maximum each document states, including rear and mid-chassis positions.

SpecificationR760xd2SR650i V4
Maximum bays288
Documented layouts61
Bay sizes3.5-inch2.5-inch
Boot devicesBOSS-N1 (M.2)ThinkSystem M.2 RAID B550i-2i SATA/NVMe Enablement Kit (internal, 2x M.2 NVMe, integrated Broadcom RAID)
Storage controllers82

Accelerators & I/O

SpecificationR760xd2SR650i V4
OCP slots12
PCIe network slots514
Network cards listed121

Power & platform

SpecificationR760xd2SR650i V4
Power-supply options71
Output range700–1,800 W3,200–3,200 W
Input typesAC · 277 VAC / HVDC · −48 V DCAC
ManagementiDRAC9XClarity Controller 3
Chassis depthVendors measure depth differently — see each data sheet837 mm (872.74 mm ear to PSU handle)924 mm (36.4 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.

R760xd2: processors by cores and TDP

Dell PowerEdge R760xd2 processors08162432100 W150 W200 WCores per processorIntel Xeon Gold 6428N — 32 cores / 64 threads · 185 W · 1.8 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 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 5415+ — 8 cores / 16 threads · 150 W · 2.9 GHz base · 23 MB cache · DDR5-4400Intel Xeon Gold 5512U — 28 cores / 56 threads · 185 W · 2.1 GHz base · 52.5 MB cache · DDR5-4800Intel Xeon Silver 4516Y+ — 24 cores / 48 threads · 185 W · 2.2 GHz base · 45 MB cache · DDR5-4400Intel 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 Silver 4509Y — 8 cores / 16 threads · 125 W · 2.6 GHz base · 23 MB cache · DDR5-44006428N32 cores · 5.8 W/core — top SKU and most efficient
4th Gen Xeon Scalable 105th Gen Xeon Scalable 5Bubble size = L3 cache · hover a bubble for the full SKU

SR650i V4: processors by cores and TDP

Lenovo ThinkSystem SR650i V4 processors08162432200 W250 WCores per processorIntel Xeon 6 6530P — 32 cores / 64 threads · 225 W · 2.3 GHz base · 144 MB cache · DDR5-64006 6530P32 cores · 7.0 W/core — top SKU and most efficient
Xeon 6 P-core 1Bubble size = L3 cache · hover a bubble for the full SKU

R760xd2: memory with every slot filled

16 GB256 GB32 GB512 GB64 GB1 TB96 GB1.5 TB16 slots · 8 per processor · each tick = one DIMM

SR650i V4: memory with every slot filled

64 GB2 TB32 slots · 16 per processor · each tick = one DIMM

R760xd2: drive bays

Front panel

36 × 3.5" SAS/SATA at the front — 36 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR650i V4: drive bays

Front panel

8 × 2.5" NVMe at the front — 8 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

R760xd2: power supplies

0500100015002000700 W Titanium — Mixed mode HLAC 200-240 V AC / 240 V DC; 60 mm700Titanium1100 W N/A (-48 V DC) — (-48) to (-60) V DC input; 60 mm1100DC1100 W Titanium — Mixed mode 100-240 V AC / 240 V DC; 1050 W at low line; 60 mm10501100Titanium1400 W Platinum — Mixed mode 100-240 V AC / 240 V DC; 1050 W at low line; 60 mm10501400Platinum1400 W Titanium — Mixed mode 100-240 V AC / 240 V DC; 1050 W at low line; 60 mm10501400Titanium1400 W Titanium — 277 V AC and HVDC 336 V DC; 60 mm1400Titanium1800 W Titanium — Mixed mode HLAC 200-240 V AC / 240 V DC; 60 mm1800TitaniumWatts · dashed line = output at 100–120 V low line
AC277 VAC / HVDC−48 V DC

SR650i V4: power supplies

05001000150020002500300035003200 W Titanium — CRPS Premium; 230V only; C203200TitaniumWatts · dashed line = output at 100–120 V low line
AC
07 — Questions

R760xd2 vs SR650i V4, answered

Is the R760xd2 or the SR650i V4 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The R760xd2 lists 15 processors up to 32 cores at 185 W; the SR650i V4 lists 1 up to 32 cores at 225 W. Fully populated that is 64 cores against 64.

Which holds more memory?

The R760xd2 has 16 DIMM slots and a stated ceiling of 1.5 TB. The SR650i V4 has 32 and 512 GB as configured.

Which takes more drives?

R760xd2: 28 bays across 6 documented layouts. SR650i V4: 8 across 1. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

R760xd2: up to 2 accelerators, 1 double-wide cards listed. SR650i V4: up to 2, 1 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. R760xd2: Dell PowerEdge R760xd2 Technical Guide (June 2026, Rev. A07) (Dell document). SR650i V4: Lenovo ThinkSystem SR650a V4 and SR650i V4 Servers (August 27, 2026) (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

R760xs vs SR650i V4Dell vs LenovoDL380a Gen11 vs SR650i V4HPE vs LenovoDL380 Gen11 vs SR650i V4HPE vs LenovoR760 vs R760xd2Same familyR760xa vs R760xd2Same familyR760xd2 vs R760xsSame familySR650 V3 vs SR650i V4Same familySR650 V4 vs SR650i V4Same family

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