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

Dell R640 vs Lenovo SR630 V3

A specification-by-specification comparison of the Dell PowerEdge R640 and the Lenovo ThinkSystem SR630 V3, built from Dell’s and Lenovo’s own documents. 1 headline measure favours the R640, 4 favour the SR630 V3, and they share no processors.

Bottom line. R640 leads on storage density. SR630 V3 leads on virtualisation, databases and in-memory work, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Dell PowerEdge R640 front: four 3.5-inch hot-plug bays, status panel at the left, VGA, USB and power button at the right
Dell PowerEdge
R640
1U Rack2 sockets24 DIMMiDRAC9
Configure the R640 →Full data sheet
VS
Lenovo ThinkSystem SR630 V3 1U front: ten 2.5-inch hot-swap drive bays, operator panel, two USB ports and the optional VGA port
Lenovo ThinkSystem
SR630 V3
1U Rack2 sockets32 DIMMXClarity Controller 2
Configure the SR630 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.

R6402
Processor sockets
SR630 V32
R64056
Cores, fully populated
Largest listed processor × its socket count
SR630 V3128Higher
R6401.53 TB
Memory ceiling
As each document states it
SR630 V38 TBHigher
R64018Higher
Drive bays
SR630 V316
R640Up to 3
Accelerators
SR630 V3Up to 3
R6401,600 W
Largest power supply
SR630 V31,800 WHigher
R6401U Rack
Rack height
SR630 V31U Rack
R64025 GbE class
Fastest network option
SR630 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 R640 if…

  • Drive bays: 18 against 16 on the SR630 V3
  • Slot count does not drop with the rack unit: the 2U members of this generation carry the same 24 DDR4 slots, so a memory-hungry workload costs no extra height here.

Choose the SR630 V3 if…

  • Cores, fully populated: 128 against 56 on the R640
  • Memory ceiling: 8 TB against 1.53 TB on the R640
  • Largest power supply: 1,800 W against 1,600 W on the R640
  • Two sockets, 32 DDR5 slots and an 8 TB memory ceiling in 1U — the same ceiling Lenovo gives the 2U SR650 V3.
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.

VirtualisationR640: 56 cores with 1.53 TB. SR630 V3: 128 cores with 8 TB.SR630 V3
Databases & in-memoryMemory ceiling 1.53 TB against 8 TB, across 24 and 32 DIMM slots.SR630 V3
Storage density18 bays in 1U against 16 in 1U.R640
AI & acceleration3 accelerators against 3 in the vendor documents.Line ball
Network throughputFastest card listed: 25 GbE class against 200 GbE class.SR630 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.

SpecificationR640SR630 V3
Processors listed7084
Most cores per processor2864
Highest processor TDP205 W385 W
Processor familiesIntel Xeon Processor Scalable Family5th Gen Xeon Scalable · 4th Gen Xeon Scalable

Memory

SpecificationR640SR630 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 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.

SpecificationR640SR630 V3
Maximum bays1816
Documented layouts617
Bay sizes2.5-inch · 3.5-inch3.5-inch · E3.S · 2.5-inch
Boot devicesBOSS - HW RAID controller presenting M.2 SATA · IDSDM (2 x microSD, 16/32/64 GB) and/or vFlash (1 x 16 GB microSD), in a dedicated proprietary PCIe x1 slot at the rear using a USB 3.0 interfaceM.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)
Storage controllers1224

Accelerators & I/O

SpecificationR640SR630 V3
OCP slots01
PCIe network slots35
Network cards listed430

Power & platform

SpecificationR640SR630 V3
Power-supply options119
Output range495–1,600 W750–1,800 W
ManagementiDRAC9XClarity Controller 2
Chassis depthVendors measure depth differently — see each data sheetTable 3: height 42.8 mm, width 482.0 mm, depth 808.5 mm, weight 21.9 kg, "Dimensions include bezel". The Appendix A figures instead give 718.89 mm bezel to die-casting rear wall, 737.19 mm bezel to rear wall PCIe area and 757.75 mm bezel to rear PSU handle (705.05 / 723.35 / 743.91 mm from the front plate). The guide does not reconcile the 808.5 mm figure with those measurements.773 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.

R640: processors by cores and TDP

Dell PowerEdge R640 processors0816243250 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 / 48 threads · 165 W · 2.4 GHz base · 2933Intel Xeon Platinum 8260 — 24 cores · 165 W · 2.4 GHz base · 2933Intel Xeon Gold 6240R — 24 cores · 165 W · 2.4 GHz base · 35.75 MB cache · 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 5220R — 24 cores · 150 W · 2.2 GHz base · 35.75 MB cache · 2667Intel Xeon Gold 6242R — 20 cores · 205 W · 3.1 GHz base · 27.5 MB cache · 2933Intel Xeon Gold 6230 — 20 cores · 125 W · 2.1 GHz base · 27.5 MB cache · 2933Intel Xeon Gold 6209U — 20 cores / 40 threads · 125 W · 2.1 GHz base · 27.5 MB cache · 2933Intel Xeon Gold 5218R — 20 cores · 125 W · 2.1 GHz base · 27.5 MB cache · 2667Intel Xeon Gold 6138 — 20 cores · 125 W · 2 GHz base · 27.5 MB cache · 2666Intel Xeon Gold 6222V — 20 cores / 40 threads · 115 W · 1.8 GHz base · 27.5 MB cache · 2400Intel Xeon Gold 5220 — 18 cores · 125 W · 2.2 GHz base · 24.75 MB cache · 2666Intel Xeon Gold 6246R — 16 cores · 205 W · 3.4 GHz base · 22 MB cache · 2933Intel Xeon Gold 6226R — 16 cores · 150 W · 2.9 GHz base · 22 MB cache · 2933Intel Xeon Gold 6208R — 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 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 5218 — 16 cores · 125 W · 2.3 GHz base · 22 MB cache · 2667Intel Xeon Gold 6130 — 16 cores · 125 W · 2.1 GHz base · 22 MB cache · 2666Intel Xeon Silver 4216 — 16 cores · 100 W · 2.5 GHz base · 22 MB cache · 2666Intel Xeon Gold 5120 — 14 cores · 105 W · 2.2 GHz base · 19.25 MB cache · 2400Intel 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 6126 — 12 cores · 125 W · 2.6 GHz base · 19.25 MB cache · 2666Intel Xeon Gold 5118 — 12 cores · 105 W · 2.3 GHz base · 16.5 MB cache · 2400Intel 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 · 16.5 MB cache · 2666Intel Xeon Silver 4116 — 12 cores · 85 W · 2.1 GHz base · 16 MB cache · 2400Intel Xeon Gold 5117 — 10 cores · 105 W · 2 GHz base · 19.25 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 · 13.75 MB cache · 2666Intel Xeon Silver 4210 — 10 cores · 85 W · 2.2 GHz base · 13.75 MB cache · 2400Intel Xeon Silver 4114 — 10 cores · 85 W · 2.2 GHz base · 13.75 MB cache · 2400Intel 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 · 11 MB cache · 2666Intel Xeon Silver 4215 — 8 cores · 85 W · 2.5 GHz base · 11 MB cache · 2666Intel Xeon Silver 4208 — 8 cores · 85 W · 2.1 GHz base · 11 MB cache · 2666Intel 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 Silver 3204 — 6 cores · 85 W · 1.9 GHz base · 8.25 MB cache · 2666Intel Xeon Bronze 3104 — 6 cores · 85 W · 1.7 GHz base · 8.25 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 · 3.9 GHz base · 16.5 MB cache · 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 · 24008280L28 cores — the top SKU6222V5.8 W/core — most efficient
Intel Xeon Processor Scalable Family 70Bubble size = L3 cache · hover a bubble for the full SKU

SR630 V3: processors by cores and TDP

Lenovo ThinkSystem SR630 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

R640: 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

SR630 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

R640: drive bays

Front panel

10 × 2.5" NVMe at the front — 10 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR630 V3: drive bays

Front panel

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

SAS/SATANVMeSAS/SATA + NVMe

R640: power supplies

0500100015002000495 W Platinum — Table 24: 1908 BTU/hr, 50/60 Hz, 100-240 V AC autoranging, 6.5-3 A.495Platinum750 W Platinum — Table 24: 2891 BTU/hr, 50/60 Hz, 100-240 V AC autoranging, 10-5 A.750Platinum750 W Platinum — Table 24 "750 W Mixed Mode HVDC - for China only": 2891 BTU/hr, 50/60 Hz, 100-240 V AC autoranging, 10-5 A. Table 25 lists a "750 W Mixed Mode HVDC - for China only" at class NA, 2891 BTU/hr, 240 V DC autoranging, 4.5 A.750Platinum750 W Platinum — Table 25 "750 W Platinum Mixed Mode DC - for China only": 2902 BTU/hr, 240 V DC autoranging, 5 A. Table 3 lists "750 W Mixed Mode DC (for China only)" and "750W 240 HVDC Platinum* (China only)" as separate line items.750Platinum750 W Titanium — Table 24: 2843 BTU/hr, 50/60 Hz, 200-240 V AC autoranging, 5 A.750Titanium750 W Titanium — Table 24 "750 W Mixed Mode AC": 2902 BTU/hr, 50/60 Hz, 100-240 V AC autoranging, 10-5 A. Table 3 calls the same unit "750 W Mixed Mode AC Platinum", so the class is stated inconsistently in this guide.750Titanium1100 W NA — Table 25 "1100 W DC": the Class column reads "NA", so efficiency carries the document's literal "NA" rather than a guessed class. 4416 BTU/hr, 50/60 Hz, -(48-60) V DC autoranging, 32 A. Table 3 lists it as "1100W - 48VDC", also with no class. The R740/R740xd guide rates its own 1100 W DC unit as Gold; this guide does not.1100DC1100 W Platinum — Table 24: 4100 BTU/hr, 50/60 Hz, 100-240 V AC autoranging, 12-6.5 A.1100Platinum1100 W Platinum — Table 24 "1100 W Mixed Mode HVDC - for China and Japan only": 4100 BTU/hr, 50/60 Hz, 100-240 V AC autoranging, 12-6.5 A. Table 25 lists the same unit at class NA, 200-380 V DC autoranging, 6.4-3.2 A. Table 3 calls it "1100W 380HVDC Platinum".1100Platinum1600 W Platinum — Table 24: 6000 BTU/hr, 50/60 Hz, 100-240 V AC autoranging, 10 A.1600Platinum1600 W Titanium — Table 24: 5970 BTU/hr, 200-240 V AC, 10 A. Also listed in Tables 2 and 3.1600TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC

SR630 V3: power supplies

0500100015002000750 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 — AC input power - 80 PLUS Platinum efficiency; 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 21800TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC
07 — Questions

R640 vs SR630 V3, answered

Is the R640 or the SR630 V3 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The R640 lists 70 processors up to 28 cores at 205 W; the SR630 V3 lists 84 up to 64 cores at 385 W. Fully populated that is 56 cores against 128.

Which holds more memory?

The R640 has 24 DIMM slots and a stated ceiling of RDIMM 1.53 TB; LRDIMM 3 TB; NVDIMM 192 GB; PMem 6.14 TB. The SR630 V3 has 32 and 8 TB.

Which takes more drives?

R640: 18 bays across 6 documented layouts. SR630 V3: 16 across 17. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

R640: up to 3 accelerators, 0 double-wide cards listed. SR630 V3: 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. R640: Dell EMC PowerEdge R640 Technical Guide (Rev. A10, August 2022) (Dell document). SR630 V3: Lenovo ThinkSystem SR630 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.

Other comparisons in this class

R640 vs DL360 Gen11Dell vs HPER640 vs DL360 Gen12Dell vs HPER640 vs SR630 V4Dell vs LenovoR660 vs SR630 V3Dell vs LenovoDL360 Gen11 vs SR630 V3HPE vs LenovoR670 vs SR630 V3Dell vs LenovoDL360 Gen12 vs SR630 V3HPE vs LenovoSR630 V3 vs SR630 V4Generation upgrade

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