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

Dell R760xs vs Lenovo SR650i V4

A specification-by-specification comparison of the Dell PowerEdge R760xs and the Lenovo ThinkSystem SR650i V4, built from Dell’s and Lenovo’s own documents. 3 headline measures favour the R760xs, 1 favours the SR650i V4, and they share no processors.

Bottom line. R760xs leads on virtualisation, databases and in-memory work, storage density, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Dell PowerEdge R760xs front view of the 24-bay system: 16 SAS/SATA and 8 NVMe 2.5-inch carriers, control panels, USB and VGA ports
Dell PowerEdge
R760xs
2U Rack2 sockets16 DIMMiDRAC9
Configure the R760xs →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
24Higher
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
100 GbE classHigher
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 R760xs if…

  • Memory ceiling: 1.5 TB against 0.5 TB on the SR650i V4
  • Drive bays: 24 against 8 on the SR650i V4
  • Fastest network option: 100 GbE class against 25 GbE class on the SR650i V4
  • Storage breadth the 1U siblings cannot match: 24 front 2.5-inch bays (16 SAS/SATA plus 8 NVMe, up to 244.48 TB), or 8 or 12 × 3.5-inch bays up to 288 TB.

Choose the SR650i V4 if…

  • Largest power supply: 3,200 W against 1,800 W on the R760xs
  • 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.

VirtualisationR760xs: 64 cores with 1.5 TB. SR650i V4: 64 cores with 0.5 TB.R760xs
Databases & in-memoryMemory ceiling 1.5 TB against 0.5 TB, across 16 and 32 DIMM slots.R760xs
Storage density24 bays in 2U against 8 in 2U.R760xs
AI & acceleration2 accelerators against 2 in the vendor documents.Line ball
Network throughputFastest card listed: 100 GbE class against 25 GbE class.R760xs
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.

SpecificationR760xsSR650i V4
Processors listed211
Highest processor TDP250 W225 W
Processor families5th Gen Xeon Scalable · 4th Gen Xeon ScalableXeon 6 P-core
Single-processor optionYesNo

Memory

SpecificationR760xsSR650i V4
DIMM slots1632
Slots per processor816
Largest module listed96 GB64 GB
Fastest rated speed5,600 MT/s6,400 MT/s
Memory typesRDIMM DDR5-4800 · RDIMM DDR5-5600RDIMM DDR5-6400

Storage

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

SpecificationR760xsSR650i V4
Maximum bays248
Documented layouts71
Bay sizes3.5-inch · 2.5-inch2.5-inch
Boot devicesBOSS-N1 (HW RAID, 2 x M.2 NVMe 480 GB / 960 GB, RAID0/RAID1, front-facing hot-plug) · Internal USB 3.0 (optional)ThinkSystem M.2 RAID B550i-2i SATA/NVMe Enablement Kit (internal, 2x M.2 NVMe, integrated Broadcom RAID)
Storage controllers92

Accelerators & I/O

SpecificationR760xsSR650i V4
Double-wide cards listed01
OCP slots12
PCIe network slots614
Network cards listed271

Power & platform

SpecificationR760xsSR650i V4
Power-supply options91
Output range600–1,800 W3,200–3,200 W
Input typesAC · −48 V DC · 277 VAC / HVDCAC
ManagementiDRAC9XClarity Controller 3
Chassis depthVendors measure depth differently — see each data sheet685.78 mm ear to PSU handle (650.24 mm ear to PSU surface)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.

R760xs: processors by cores and TDP

Dell PowerEdge R760xs processors08162432100 W150 W200 W250 WCores per processorIntel Xeon Gold 5520+ — 28 cores · 205 W · 2.2 GHz base · 52.5 MB cache · DDR5-4800Intel Xeon Gold 5512U — 28 cores · 185 W · 2.1 GHz base · 52.5 MB cache · DDR5-4800Intel Xeon Silver 4516Y+ — 24 cores · 185 W · 2.2 GHz base · 45 MB cache · DDR5-4400Intel Xeon Gold 6526Y — 16 cores · 195 W · 2.8 GHz base · 37.5 MB cache · DDR5-5200Intel Xeon Silver 4514Y — 12 cores · 150 W · 2 GHz base · 30 MB cache · DDR5-4400Intel Xeon Silver 4510 — 12 cores · 150 W · 2.4 GHz base · 30 MB cache · DDR5-4400Intel Xeon Gold 6534 — 8 cores · 195 W · 3.9 GHz base · 22.5 MB cache · DDR5-4800Intel Xeon Silver 4509Y — 8 cores · 125 W · 2.6 GHz base · 23 MB cache · DDR5-4400Intel Xeon Gold 6414U — 32 cores · 250 W · 2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6448Y — 32 cores · 225 W · 2.2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6438Y+ — 32 cores · 205 W · 2 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 5420+ — 28 cores · 205 W · 2 GHz base · 53 MB cache · DDR5-4400Intel Xeon Gold 6442Y — 24 cores · 225 W · 2.6 GHz base · 45 MB cache · DDR5-4800Intel Xeon Gold 5418Y — 24 cores · 185 W · 2 GHz base · 45 MB cache · DDR5-4400Intel Xeon Silver 4416+ — 20 cores · 165 W · 2 GHz base · 38 MB cache · DDR5-4000Intel Xeon Gold 6426Y — 16 cores · 185 W · 2.6 GHz base · 30 MB cache · DDR5-4800Intel Xeon Gold 5416S — 16 cores · 150 W · 2 GHz base · 30 MB cache · DDR5-4400Intel Xeon Silver 4410Y — 12 cores · 150 W · 2 GHz base · 23 MB cache · DDR5-4000Intel Xeon Silver 4410T — 10 cores · 150 W · 2.7 GHz base · 27 MB cache · DDR5-4000Intel Xeon Gold 5415+ — 8 cores · 150 W · 2.9 GHz base · 15 MB cache · DDR5-4400Intel Xeon Bronze 3408U — 8 cores · 125 W · 1.8 GHz base · 15 MB cache · DDR5-40006414U32 cores — the top SKU6438Y+6.4 W/core — most efficient
5th Gen Xeon Scalable 84th Gen Xeon Scalable 13Bubble 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

R760xs: 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

R760xs: drive bays

Front panel

24 × 2.5" SAS/SATA + NVMe at the front — 24 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

R760xs: power supplies

0500100015002000600 W Platinum — Mixed mode 100-240 V AC / 240 V DC; 60 mm600Platinum700 W Titanium — Mixed mode HLAC 200-240 V AC / 240 V DC; 60 mm700Titanium800 W Platinum — Mixed mode 100-240 V AC / 240 V DC; 60 mm800Platinum1100 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

R760xs vs SR650i V4, answered

Is the R760xs or the SR650i V4 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The R760xs lists 21 processors up to 32 cores at 250 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 R760xs 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?

R760xs: 24 bays across 7 documented layouts. SR650i V4: 8 across 1. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

R760xs: up to 2 accelerators, 0 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. R760xs: Dell PowerEdge R760xs Technical Guide (June 2026, Rev. A04) (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.

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