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

Dell R740xd vs Lenovo SR650 V3

A specification-by-specification comparison of the Dell PowerEdge R740xd and the Lenovo ThinkSystem SR650 V3, built from Dell’s and Lenovo’s own documents. None of the headline measures favour the R740xd; 6 favour the SR650 V3, and they share no processors.

Bottom line. SR650 V3 leads on virtualisation, databases and in-memory work, storage density, AI and acceleration, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Rear of a Dell PowerEdge R740xd: 3.5-inch drive carriers in rear bays 12 and 13, three PCIe riser openings, iDRAC, serial, VGA, four RJ45, two PSUs
Dell PowerEdge
R740xd
2U Rack2 sockets24 DIMMiDRAC9
Configure the R740xd →Full data sheet
VS
Lenovo ThinkSystem SR650 V3 front view with 24 numbered 2.5-inch hot-swap drive bays and the front USB and VGA ports
Lenovo ThinkSystem
SR650 V3
2U Rack2 sockets32 DIMMXClarity Controller 2
Configure the SR650 V3 →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.

R740xd2
Processor sockets
SR650 V32
R740xd56
Cores, fully populated
Largest listed processor × its socket count
SR650 V3128Higher
R740xd3 TB
Memory ceiling
As each document states it
SR650 V38 TBHigher
R740xd24
Drive bays
SR650 V340Higher
R740xdUp to 6
Accelerators
SR650 V3Up to 8Higher
R740xd2,400 W
Largest power supply
SR650 V32,600 WHigher
R740xd2U Rack
Rack height
SR650 V32U Rack
R740xd25 GbE class
Fastest network option
SR650 V3200 GbE classHigher
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 R740xd if…

  • Dell’s specification table gives this chassis three separate rows of drive bays — front, mid-chassis and rear — where the R740 printed in the same document has front bays only.

Choose the SR650 V3 if…

  • Cores, fully populated: 128 against 56 on the R740xd
  • Memory ceiling: 8 TB against 3 TB on the R740xd
  • Drive bays: 40 against 24 on the R740xd
  • Three drive zones — front, mid-chassis and rear — take the 2U chassis to 40 × 2.5-inch or 20 × 3.5-inch bays, and up to 36 NVMe drives can each run on a dedicated x4 link with no oversubscription.
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.

VirtualisationR740xd: 56 cores with 3 TB. SR650 V3: 128 cores with 8 TB.SR650 V3
Databases & in-memoryMemory ceiling 3 TB against 8 TB, across 24 and 32 DIMM slots.SR650 V3
Storage density24 bays in 2U against 40 in 2U.SR650 V3
AI & acceleration6 accelerators against 8 in the vendor documents.SR650 V3
Network throughputFastest card listed: 25 GbE class against 200 GbE class.SR650 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.

SpecificationR740xdSR650 V3
Processors listed11184
Most cores per processor2864
Highest processor TDP205 W385 W
Processor familiesIntel Xeon Processor Scalable Family5th Gen Xeon Scalable · 4th Gen Xeon Scalable

Memory

SpecificationR740xdSR650 V3
DIMM slots2432
Slots per processor1216
Largest module listed512 GB256 GB
Fastest rated speed2,933 MT/s5,600 MT/s
Memory typesRDIMM DDR4-2666 · RDIMM DDR4-2933 · LRDIMM DDR4-2666 · NVDIMM-N DDR4-2666 + 1 moreRDIMM DDR5-5600 · RDIMM DDR5-4800 · 9x4 RDIMM · 3DS RDIMM DDR5-5600

Storage

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

SpecificationR740xdSR650 V3
Maximum bays2440
Documented layouts620
Bay sizes2.5-inch · 3.5-inch3.5-inch · 2.5-inch
Boot devicesBOSS - HW RAID, 2 x M.2 SATA SSD, 240 GB or 480 GB (Table 4) · IDSDM (2 x microSD, 16/32/64 GB) and/or vFlash (1 x 16 GB microSD)M.2 SATA/x4 NVMe 2-Bay Adapter (4Y37A79663) · M.2 NVMe 2-Bay RAID Adapter (4Y37A09750) · M.2 RAID B540i-2i SATA/NVMe Adapter (4Y37A90063) + 4 more
Storage controllers1024

Accelerators & I/O

SpecificationR740xdSR650 V3
Accelerators supportedUp to 6Up to 8
Double-wide cards listed21
OCP slots01
PCIe network slots812
Network cards listed431

Power & platform

SpecificationR740xdSR650 V3
Power-supply options1011
Output range495–2,400 W750–2,600 W
ManagementiDRAC9XClarity Controller 2
Chassis depthVendors measure depth differently — see each data sheetTables 4/17: height 86.8 mm766 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.

R740xd: processors by cores and TDP

Dell PowerEdge R740xd processors081624320 W50 W100 W150 W200 W250 WCores per processorIntel Xeon Platinum 8280L — 28 cores · 205 W · 2.7 GHz base · 38.5 MB cache · 2933Intel Xeon Platinum 8280M — 28 cores · 205 W · 2.7 GHz base · 38.5 MB cache · 2933Intel Xeon Platinum 8280 — 28 cores · 205 W · 2.7 GHz base · 38.5 MB cache · 2933Intel Xeon Platinum 8180M — 28 cores · 205 W · 2.5 GHz base · 38.5 MB cache · 2667Intel Xeon Platinum 8180 — 28 cores · 205 W · 2.5 GHz base · 38.5 MB cache · 2667Intel Xeon Gold 6258R — 28 cores · 205 W · 2.7 GHz base · 38.5 MB cache · 2933Intel Xeon Platinum 8276L — 28 cores · 165 W · 2.2 GHz base · 2933Intel Xeon Platinum 8276M — 28 cores · 165 W · 2.2 GHz base · 2933Intel Xeon Platinum 8276 — 28 cores · 165 W · 2.2 GHz base · 2933Intel Xeon Platinum 8176M — 28 cores · 165 W · 2.1 GHz base · 38 MB cache · 2667Intel Xeon Platinum 8176 — 28 cores · 165 W · 2.1 GHz base · 38 MB cache · 2667Intel Xeon Gold 6238R — 28 cores · 165 W · 2.2 GHz base · 38.5 MB cache · 2933Intel Xeon Platinum 8270 — 26 cores · 205 W · 2.7 GHz base · 2933Intel Xeon Platinum 8164 — 26 cores · 205 W · 2.7 GHz base · 33 MB cache · 2667Intel Xeon Platinum 8170M — 26 cores · 165 W · 2.1 GHz base · 36 MB cache · 2667Intel Xeon Platinum 8170 — 26 cores · 165 W · 2.1 GHz base · 36 MB cache · 2667Intel Xeon Gold 6230R — 26 cores · 150 W · 2.1 GHz base · 35.75 MB cache · 2933Intel Xeon Platinum 8268 — 24 cores · 205 W · 2.9 GHz base · 2933Intel Xeon Platinum 8168 — 24 cores · 205 W · 2.7 GHz base · 33 MB cache · 2667Intel Xeon Gold 6248R — 24 cores · 205 W · 3 GHz base · 35.75 MB cache · 2933Intel Xeon Platinum 8260L — 24 cores · 165 W · 2.4 GHz base · 2933Intel Xeon Platinum 8260M — 24 cores · 165 W · 2.4 GHz base · 2933Intel Xeon Platinum 8260Y — 24 cores · 165 W · 2.4 GHz base · 2933Intel Xeon Platinum 8260 — 24 cores · 165 W · 2.4 GHz base · 2933Intel Xeon Gold 6240 — 24 cores · 165 W · 2.6 GHz base · 2933Intel Xeon Gold 6240R — 24 cores · 165 W · 2.4 GHz base · 35.75 MB cache · 2933Intel Xeon Gold 6212U — 24 cores · 165 W · 2.4 GHz base · 2933Intel Xeon Platinum 8160M — 24 cores · 150 W · 2.1 GHz base · 33 MB cache · 2667Intel Xeon Platinum 8160 — 24 cores · 150 W · 2.1 GHz base · 33 MB cache · 2667Intel Xeon Gold 6252 — 24 cores · 150 W · 2.1 GHz base · 2933Intel Xeon Gold 6252N — 24 cores · 150 W · 3 GHz base · 35.75 MB cache · 2933Intel Xeon Gold 5220R — 24 cores · 150 W · 2.2 GHz base · 35.75 MB cache · 2933Intel Xeon Platinum 6262V — 24 cores · 135 W · 1.9 GHz base · 33 MB cache · 2400Intel Xeon Gold 6238 — 22 cores · 140 W · 2.1 GHz base · 30.25 MB cache · 2933Intel Xeon Gold 6238L — 22 cores · 140 W · 2.1 GHz base · 30.25 MB cache · 2933Intel Xeon Gold 6238M — 22 cores · 140 W · 2.1 GHz base · 30.25 MB cache · 2933Intel Xeon Gold 6152 — 22 cores · 140 W · 2.1 GHz base · 25 MB cache · 2667Intel Xeon Gold 6242R — 20 cores · 205 W · 3.1 GHz base · 27.5 MB cache · 2933Intel Xeon Gold 6248 — 20 cores · 150 W · 2.5 GHz base · 2933Intel Xeon Gold 6210U — 20 cores · 150 W · 2.5 GHz base · 2933Intel Xeon Gold 6148 — 20 cores · 150 W · 2.4 GHz base · 27 MB cache · 2667Intel Xeon Gold 6230N — 20 cores · 125 W · 2.3 GHz base · 27.5 MB cache · 2933Intel Xeon Gold 6230 — 20 cores · 125 W · 2.1 GHz base · 2933Intel Xeon Gold 6209U — 20 cores · 125 W · 2.1 GHz base · 27.5 MB cache · 2933Intel Xeon Gold 6138 — 20 cores · 125 W · 2 GHz base · 27.5 MB cache · 2667Intel Xeon Gold 5218 — 20 cores · 125 W · 2.3 GHz base · 22 MB cache · 2667Intel Xeon Gold 5218R — 20 cores · 125 W · 2.1 GHz base · 27.5 MB cache · 2667Intel Xeon Gold 6222V — 20 cores · 115 W · 1.8 GHz base · 27.5 MB cache · 2400Intel Xeon Gold 6254 — 18 cores · 200 W · 3.1 GHz base · 2933Intel Xeon Gold 6154 — 18 cores · 200 W · 3 GHz base · 25 MB cache · 2667Intel Xeon Gold 6150 — 18 cores · 165 W · 2.7 GHz base · 25 MB cache · 2667Intel Xeon Gold 6240L — 18 cores · 150 W · 2.6 GHz base · 24.75 MB cache · 2933Intel Xeon Gold 6240M — 18 cores · 150 W · 2.6 GHz base · 24.75 MB cache · 2933Intel Xeon Gold 6240Y — 18 cores · 150 W · 2.6 GHz base · 2933Intel Xeon Gold 6140M — 18 cores · 140 W · 2.3 GHz base · 25 MB cache · 2667Intel Xeon Gold 6140 — 18 cores · 140 W · 2.3 GHz base · 25 MB cache · 2667Intel Xeon Gold 5220 — 18 cores · 125 W · 2.2 GHz base · 2667Intel Xeon Gold 5220S — 18 cores · 125 W · 2.7 GHz base · 24.75 MB cache · 2667Intel Xeon Gold 6246R — 16 cores · 205 W · 3.4 GHz base · 22 MB cache · 2933Intel Xeon Gold 6242 — 16 cores · 150 W · 2.8 GHz base · 2933Intel Xeon Gold 6226R — 16 cores · 150 W · 2.9 GHz base · 22 MB cache · 2933Intel Xeon Gold 6208U — 16 cores · 150 W · 2.9 GHz base · 22 MB cache · 2933Intel Xeon Gold 6142M — 16 cores · 150 W · 2.6 GHz base · 22 MB cache · 2667Intel Xeon Gold 6142 — 16 cores · 150 W · 2.6 GHz base · 22 MB cache · 2667Intel Xeon Platinum 8253 — 16 cores · 125 W · 2.2 GHz base · 2933Intel Xeon Platinum 8153 — 16 cores · 125 W · 2 GHz base · 22 MB cache · 2667Intel Xeon Gold 6130 — 16 cores · 125 W · 2.1 GHz base · 22 MB cache · 2667Intel Xeon Gold 5218N — 16 cores · 110 W · 2.3 GHz base · 22 MB cache · 2667Intel Xeon Silver 4216 — 16 cores · 100 W · 2.1 GHz base · 2667Intel Xeon Gold 6132 — 14 cores · 140 W · 2.6 GHz base · 19.25 MB cache · 2667Intel Xeon Gold 5120 — 14 cores · 105 W · 2.2 GHz base · 19.25 MB cache · 2400Intel Xeon Gold 6246 — 12 cores · 165 W · 3.3 GHz base · 24.75 MB cache · 2933Intel Xeon Gold 6146 — 12 cores · 165 W · 3.2 GHz base · 24.75 MB cache · 2667Intel Xeon Platinum 8158 — 12 cores · 150 W · 3 GHz base · 24.75 MB cache · 2667Intel Xeon Gold 6226 — 12 cores · 125 W · 2.7 GHz base · 19.25 MB cache · 2933Intel Xeon Gold 6136 — 12 cores · 125 W · 3 GHz base · 24.75 MB cache · 2667Intel Xeon Gold 6126 — 12 cores · 125 W · 2.6 GHz base · 19.25 MB cache · 2667Intel Xeon Gold 5118 — 12 cores · 105 W · 2.3 GHz base · 16.5 MB cache · 2400Intel Xeon Silver 4214Y — 12 cores · 105 W · 2.2 GHz base · 2667Intel Xeon Silver 4214R — 12 cores · 100 W · 2.4 GHz base · 16.5 MB cache · 2400Intel Xeon Silver 4214 — 12 cores · 85 W · 2.2 GHz base · 2667Intel Xeon Silver 4116 — 12 cores · 85 W · 2.1 GHz base · 16 MB cache · 2400Intel Xeon Silver 4210R — 10 cores · 100 W · 2.4 GHz base · 13.75 MB cache · 2400Intel Xeon Gold 5215 — 10 cores · 85 W · 2.5 GHz base · 2667Intel Xeon Gold 5215M — 10 cores · 85 W · 2.5 GHz base · 2667Intel Xeon Gold 5215L — 10 cores · 85 W · 2.5 GHz base · 2667Intel Xeon Gold 5115 — 10 cores · 85 W · 2.4 GHz base · 13.75 MB cache · 2400Intel Xeon Silver 4210 — 10 cores · 85 W · 2.2 GHz base · 2667Intel Xeon Silver 4114 — 10 cores · 85 W · 2.2 GHz base · 14 MB cache · 2400Intel Xeon Gold 6244 — 8 cores · 150 W · 3.6 GHz base · 2933Intel Xeon Gold 6144 — 8 cores · 150 W · 3.5 GHz base · 24.75 MB cache · 2667Intel Xeon Gold 6234 — 8 cores · 130 W · 3.3 GHz base · 24.75 MB cache · 2933Intel Xeon Gold 6134M — 8 cores · 130 W · 3.2 GHz base · 24.75 MB cache · 2667Intel Xeon Gold 6134 — 8 cores · 130 W · 3.3 GHz base · 24.75 MB cache · 2667Intel Xeon Silver 4215R — 8 cores · 130 W · 3.2 GHz base · 11 MB cache · 2400Intel Xeon Gold 5217 — 8 cores · 125 W · 3 GHz base · 2667Intel Xeon Silver 4215 — 8 cores · 85 W · 2.5 GHz base · 2667Intel Xeon Silver 4208 — 8 cores · 85 W · 2.1 GHz base · 2667Intel Xeon Silver 4110 — 8 cores · 85 W · 2.1 GHz base · 11 MB cache · 2400Intel Xeon Silver 4108 — 8 cores · 85 W · 1.8 GHz base · 11 MB cache · 2400Intel Xeon Bronze 3206R — 8 cores · 85 W · 1.9 GHz base · 11 MB cache · 2400Intel Xeon Bronze 3106 — 8 cores · 85 W · 1.7 GHz base · 11 MB cache · 2133Intel Xeon Gold 6128 — 6 cores · 115 W · 3.4 GHz base · 19.25 MB cache · 2667Intel Xeon Bronze 3204 — 6 cores · 85 W · 1.9 GHz base · 2667Intel Xeon Bronze 3104 — 6 cores · 85 W · 1.7 GHz base · 11 MB cache · 2133Intel Xeon Platinum 8156 — 4 cores · 105 W · 3.6 GHz base · 16.5 MB cache · 2667Intel Xeon Gold 5222 — 4 cores · 105 W · 3.8 GHz base · 2933Intel Xeon Gold 5122 — 4 cores · 105 W · 3.6 GHz base · 16.5 MB cache · 2400Intel Xeon Silver 4112 — 4 cores · 85 W · 2.6 GHz base · 8.25 MB cache · 2400Intel Xeon Gold 6256 — null cores · null W · 3.6 GHz base · 33 MB cache · 2933Intel Xeon Gold 6250 — null cores · null W · 3.9 GHz base · 35.75 MB cache · 29338280L28 cores — the top SKU6262V5.6 W/core — most efficient
Intel Xeon Processor Scalable Family 111Bubble size = L3 cache · hover a bubble for the full SKU

SR650 V3: processors by cores and TDP

Lenovo ThinkSystem SR650 V3 processors0816243240485664100 W150 W200 W250 W300 W350 W400 WCores per processorIntel Xeon Platinum 8593Q — 64 cores / 128 threads · 385 W · 2.2 GHz base · 320 MB cache · 5600Intel Xeon Platinum 8592+ — 64 cores / 128 threads · 350 W · 1.9 GHz base · 320 MB cache · 5600Intel Xeon Platinum 8592V — 64 cores / 128 threads · 330 W · 2 GHz base · 320 MB cache · 4800Intel Xeon Platinum 8580 — 60 cores / 120 threads · 350 W · 2 GHz base · 300 MB cache · 5600Intel Xeon Platinum 8581V — 60 cores / 120 threads · 270 W · 2 GHz base · 300 MB cache · 4800Intel Xeon Platinum 8570 — 56 cores / 112 threads · 350 W · 2.1 GHz base · 300 MB cache · 5600Intel Xeon Platinum 8571N — 52 cores / 104 threads · 300 W · 2.4 GHz base · 300 MB cache · 4800Intel Xeon Platinum 8558P — 48 cores / 96 threads · 350 W · 2.7 GHz base · 260 MB cache · 5600Intel Xeon Platinum 8568Y+ — 48 cores / 96 threads · 350 W · 2.3 GHz base · 300 MB cache · 5600Intel Xeon Platinum 8558 — 48 cores / 96 threads · 330 W · 2.1 GHz base · 260 MB cache · 5200Intel Xeon Platinum 8558U — 48 cores / 96 threads · 300 W · 2 GHz base · 260 MB cache · 4800Intel Xeon Gold 6554S — 36 cores / 72 threads · 270 W · 2.2 GHz base · 180 MB cache · 5200Intel Xeon Gold 6558Q — 32 cores / 64 threads · 350 W · 3.2 GHz base · 60 MB cache · 5200Intel Xeon Platinum 8562Y+ — 32 cores / 64 threads · 300 W · 2.8 GHz base · 60 MB cache · 5600Intel Xeon Gold 6530 — 32 cores / 64 threads · 270 W · 2.1 GHz base · 160 MB cache · 4800Intel Xeon Gold 6548N — 32 cores / 64 threads · 250 W · 2.8 GHz base · 60 MB cache · 5200Intel Xeon Gold 6548Y+ — 32 cores / 64 threads · 250 W · 2.5 GHz base · 60 MB cache · 5200Intel Xeon Gold 6538Y+ — 32 cores / 64 threads · 225 W · 2.2 GHz base · 60 MB cache · 5200Intel Xeon Gold 6538N — 32 cores / 64 threads · 205 W · 2.1 GHz base · 60 MB cache · 5200Intel Xeon Gold 5520+ — 28 cores / 56 threads · 205 W · 2.2 GHz base · 52.5 MB cache · 4800Intel Xeon Gold 5512U — 28 cores / 56 threads · 185 W · 2.1 GHz base · 52.5 MB cache · 4800Intel Xeon Gold 6542Y — 24 cores / 48 threads · 250 W · 2.9 GHz base · 60 MB cache · 5200Intel Xeon Silver 4516Y+ — 24 cores / 48 threads · 185 W · 2.2 GHz base · 45 MB cache · 4400Intel Xeon Gold 6544Y — 16 cores / 32 threads · 270 W · 3.6 GHz base · 45 MB cache · 5200Intel Xeon Gold 6526Y — 16 cores / 32 threads · 195 W · 2.8 GHz base · 37.5 MB cache · 5200Intel Xeon Silver 4514Y — 16 cores / 32 threads · 150 W · 2 GHz base · 30 MB cache · 4400Intel Xeon Silver 4510 — 12 cores / 24 threads · 150 W · 2.4 GHz base · 30 MB cache · 4400Intel Xeon Silver 4510T — 12 cores / 24 threads · 115 W · 2 GHz base · 30 MB cache · 4400Intel Xeon Gold 6534 — 8 cores / 16 threads · 195 W · 3.9 GHz base · 22.5 MB cache · 4800Intel Xeon Gold 5515+ — 8 cores / 16 threads · 165 W · 3.2 GHz base · 22.5 MB cache · 4800Intel Xeon Bronze 3508U — 8 cores / 8 threads · 125 W · 2.1 GHz base · 22.5 MB cache · 4400Intel Xeon Silver 4509Y — 8 cores / 16 threads · 125 W · 2.6 GHz base · 22.5 MB cache · 4400Intel Xeon Platinum 8490H — 60 cores / 120 threads · 350 W · 1.9 GHz base · 112.5 MB cache · 4800Intel Xeon Platinum 8480+ — 56 cores / 112 threads · 350 W · 2 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8480CL — 56 cores / 112 threads · 350 W · 2 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8470 — 52 cores / 104 threads · 350 W · 2 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8470Q — 52 cores / 104 threads · 350 W · 2.1 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8470N — 52 cores / 104 threads · 300 W · 1.7 GHz base · 97.5 MB cache · 4800Intel Xeon Platinum 8468 — 48 cores / 96 threads · 350 W · 2.1 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8468H — 48 cores / 96 threads · 330 W · 2.1 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8468V — 48 cores / 96 threads · 330 W · 2.4 GHz base · 97.5 MB cache · 4800Intel Xeon Platinum 8461V — 48 cores / 96 threads · 300 W · 2.2 GHz base · 97.5 MB cache · 4800Intel Xeon Platinum 8458P — 44 cores / 88 threads · 350 W · 2.7 GHz base · 82.5 MB cache · 4800Intel Xeon Platinum 8460H — 40 cores / 80 threads · 330 W · 2.2 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8460Y+ — 40 cores / 80 threads · 300 W · 2 GHz base · 105 MB cache · 4800Intel Xeon Platinum 8452Y — 36 cores / 72 threads · 300 W · 2 GHz base · 67.5 MB cache · 4800Intel Xeon Gold 6458Q — 32 cores / 64 threads · 350 W · 3.1 GHz base · 60 MB cache · 4800Intel Xeon Platinum 8462Y+ — 32 cores / 64 threads · 300 W · 2.8 GHz base · 60 MB cache · 4800Intel Xeon Gold 6430 — 32 cores / 64 threads · 270 W · 2.1 GHz base · 60 MB cache · 4400Intel Xeon Gold 6454S — 32 cores / 64 threads · 270 W · 2.2 GHz base · 60 MB cache · 4800Intel Xeon Platinum 8454H — 32 cores / 64 threads · 270 W · 2.1 GHz base · 82.5 MB cache · 4800Intel Xeon Gold 6414U — 32 cores / 64 threads · 250 W · 2 GHz base · 60 MB cache · 4800Intel Xeon Gold 6448H — 32 cores / 64 threads · 250 W · 2.4 GHz base · 60 MB cache · 4800Intel Xeon Gold 6448Y — 32 cores / 64 threads · 225 W · 2.1 GHz base · 60 MB cache · 4800Intel Xeon Gold 6433N — 32 cores / 64 threads · 205 W · 2 GHz base · 60 MB cache · 4400Intel Xeon Gold 6438M — 32 cores / 64 threads · 205 W · 2.2 GHz base · 60 MB cache · 4800Intel Xeon Gold 6438N — 32 cores / 64 threads · 205 W · 2 GHz base · 60 MB cache · 4800Intel Xeon Gold 6438Y+ — 32 cores / 64 threads · 205 W · 2 GHz base · 60 MB cache · 4800Intel Xeon Gold 6443N — 32 cores / 64 threads · 195 W · 1.6 GHz base · 60 MB cache · 4400Intel Xeon Gold 6428N — 32 cores / 64 threads · 185 W · 1.8 GHz base · 60 MB cache · 4000Intel Xeon Platinum 8450H — 28 cores / 56 threads · 250 W · 2 GHz base · 75 MB cache · 4800Intel Xeon Gold 5420+ — 28 cores / 56 threads · 205 W · 2 GHz base · 52.5 MB cache · 4400Intel Xeon Gold 6423N — 28 cores / 56 threads · 195 W · 2 GHz base · 52.5 MB cache · 4400Intel Xeon Gold 6442Y — 24 cores / 48 threads · 225 W · 2.6 GHz base · 60 MB cache · 4800Intel Xeon Gold 5412U — 24 cores / 48 threads · 185 W · 2.1 GHz base · 45 MB cache · 4400Intel Xeon Gold 5418Y — 24 cores / 48 threads · 185 W · 2 GHz base · 45 MB cache · 4400Intel Xeon Gold 6403N — 24 cores / 48 threads · 185 W · 1.9 GHz base · 45 MB cache · 4000Intel Xeon Gold 6418H — 24 cores / 48 threads · 185 W · 2.1 GHz base · 60 MB cache · 4800Intel Xeon Gold 5411N — 24 cores / 48 threads · 165 W · 1.9 GHz base · 45 MB cache · 4400Intel Xeon Gold 5418N — 24 cores / 48 threads · 165 W · 1.8 GHz base · 45 MB cache · 4000Intel Xeon Silver 4416+ — 20 cores / 40 threads · 165 W · 2 GHz base · 37.5 MB cache · 4000Intel Xeon Gold 5433N — 20 cores / 48 threads · 160 W · 2.3 GHz base · 45 MB cache · 4000Intel Xeon Gold 5423N — 20 cores / 40 threads · 145 W · 2.1 GHz base · 37.5 MB cache · 4000Intel Xeon Gold 6416H — 18 cores / 36 threads · 165 W · 2.2 GHz base · 45 MB cache · 4800Intel Xeon Gold 6444Y — 16 cores / 32 threads · 270 W · 3.6 GHz base · 45 MB cache · 4800Intel Xeon Platinum 8444H — 16 cores / 32 threads · 270 W · 2.9 GHz base · 45 MB cache · 4800Intel Xeon Gold 6426Y — 16 cores / 32 threads · 185 W · 2.5 GHz base · 37.5 MB cache · 4800Intel Xeon Gold 5416S — 16 cores / 32 threads · 150 W · 2 GHz base · 30 MB cache · 4400Intel Xeon Silver 4410Y — 12 cores / 24 threads · 150 W · 2 GHz base · 30 MB cache · 4000Intel Xeon Silver 4410T — 10 cores / 20 threads · 150 W · 2.7 GHz base · 26.25 MB cache · 4000Intel Xeon Gold 6434 — 8 cores / 16 threads · 195 W · 3.7 GHz base · 22.5 MB cache · 4800Intel Xeon Gold 6434H — 8 cores / 16 threads · 195 W · 3.7 GHz base · 22.5 MB cache · 4800Intel Xeon Gold 5415+ — 8 cores / 16 threads · 150 W · 2.9 GHz base · 22.5 MB cache · 4400Intel Xeon Bronze 3408U — 8 cores / 8 threads · 125 W · 1.8 GHz base · 22.5 MB cache · 40008593Q64 cores — the top SKU8581V4.5 W/core — most efficient
5th Gen Xeon Scalable 324th Gen Xeon Scalable 52Bubble size = L3 cache · hover a bubble for the full SKU

R740xd: memory with every slot filled

8 GB192 GB16 GB384 GB32 GB768 GB64 GB1.5 TB128 GB3 TB256 GB6 TB512 GB12 TB24 slots · 12 per processor · each tick = one DIMM

SR650 V3: 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

R740xd: drive bays

Front panel

24 × 2.5" SAS/SATA + NVMe at the front — 24 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR650 V3: drive bays

Front panel

24 × 2.5" SAS/SATA at the front — 24 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

R740xd: power supplies

05001000150020002500495 W Platinum — Table 13: 50/60 Hz, 100-240 Vac / 6.5-3 A, 1908 BTU/hr. Table 14 efficiency 82/90/94/91% at 10/20/50/100% load.495Platinum750 W Platinum — Table 13: 50/60 Hz, 100-240 Vac / 10-5 A, 2891 BTU/hr. Table 14 efficiency 82/90/94/91%.750Platinum750 W Platinum — Table 13 "750W Mix Mode/HVDC (China Only)": 50/60 Hz 100-240 Vac / 10-5 A, or 240 Vdc / 4.5 A, 2891 BTU/hr. Table 14 lists 750W HVDC Platinum at 82/90/94/91%.750Platinum750 W Titanium — Table 13 lists this as "750WT": 50/60 Hz, 200-240 Vac / 5 A, 2843 BTU/hr. Table 14 efficiency 90/94/96/91%.750Titanium1100 W Gold — Table 13 "1100W DC": -48 V DC to -60 V DC, 32 A, 4416 BTU/hr (printed verbatim as "-48--60Vdc/32A"). Table 14 efficiency 80/88/91/88%. Tables 2/3/4 call it "Gold 1100W -48VDC".1100DC1100 W Platinum — Table 13: 50/60 Hz, 100-240 Vac / 12-6.5 A, 4100 BTU/hr. Table 14 efficiency 89/93/94.5/92%.1100Platinum1100 W Platinum — Table 13 "1100W Mix Mode/HVDC (China and Japan Only)": 50/60 Hz 100-240 Vac / 12-6.5 A, or 200-380 Vdc / 6.4-3.2 A, 4100 BTU/hr.1100Platinum1600 W Platinum — Table 13: 50/60 Hz, 100-240 Vac / 10 A, 6000 BTU/hr. Table 14 efficiency 87/90/94/91%.1600Platinum2000 W Platinum — Table 13: 50/60 Hz, 100-240 Vac / 11.5 A, 7500 BTU/hr. Table 14 efficiency 89/93/94/91%.2000Platinum2400 W Platinum — Table 13: 50/60 Hz, 100-240 Vac / 16 A, 9000 BTU/hr. Table 14 efficiency 89/93/94/91.5%.2400PlatinumWatts · dashed line = output at 100–120 V low line
AC−48 V DC

SR650 V3: power supplies

050010001500200025003000750 W Platinum — AC input power - 80 PLUS Platinum efficiency; input 230V/115V; max quantity 2750Platinum750 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 2750Titanium750 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 2750Titanium1100 W n/a (DC input) — -48V DC input power; input -48V DC; max quantity 21100DC1100 W Platinum — AC input power - 80 PLUS Platinum efficiency; input 230V/115V; max quantity 21100Platinum1100 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 21100Titanium1800 W Platinum — input 230V; max quantity 21800Platinum1800 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 21800Titanium1800 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 21800Titanium2400 W Platinum — input 230V; max quantity 22400Platinum2600 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 22600TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC
07 — Questions

R740xd vs SR650 V3, answered

Is the R740xd or the SR650 V3 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The R740xd lists 111 processors up to 28 cores at 205 W; the SR650 V3 lists 84 up to 64 cores at 385 W. Fully populated that is 56 cores against 128.

Which holds more memory?

The R740xd has 24 DIMM slots and a stated ceiling of 3 TB with RDIMM/LRDIMM. The SR650 V3 has 32 and 8 TB.

Which takes more drives?

R740xd: 24 bays across 6 documented layouts. SR650 V3: 40 across 20. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

R740xd: up to 6 accelerators, 2 double-wide cards listed. SR650 V3: up to 8, 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. R740xd: Dell EMC PowerEdge R740 and R740xd Technical Guide (Rev. A12, August 2022) (Dell document). SR650 V3: Lenovo ThinkSystem SR650 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.

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