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

Lenovo SR850 V3 vs Lenovo SR850 V4

A specification-by-specification comparison of the Lenovo ThinkSystem SR850 V3 and the Lenovo ThinkSystem SR850 V4, built from Lenovo’s own documents. None of the headline measures favour the SR850 V3; 4 favour the SR850 V4, and they share no processors.

Bottom line. SR850 V4 leads on virtualisation, storage density, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Lenovo ThinkSystem SR850 V3 2U front with 24 numbered 2.5-inch hot-swap drive bays, VGA and diagnostics ports and two USB ports
Lenovo ThinkSystem
SR850 V3
2U Rack4 sockets64 DIMMXClarity Controller 2
Configure the SR850 V3 →Full data sheet
VS
Lenovo ThinkSystem SR850 V4 2U four-socket server, front three-quarter view with the optional lockable security bezel over the drive bays
Lenovo ThinkSystem
SR850 V4
2U Rack4 sockets64 DIMMXClarity Controller 3
Configure the SR850 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.

4
Processor sockets
4
240
Cores, fully populated
Largest listed processor × its socket count
Higher344
16 TB
Memory ceiling
As each document states it
16 TB
24
Drive bays
Higher32
Up to 4
Accelerators
Up to 4
2,700 W
Largest power supply
Higher3,200 W
2U Rack
Rack height
2U Rack
200 GbE class
Fastest network option
Higher400 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 SR850 V3 if…

  • Four sockets, up to 240 cores and 64 DIMM slots (16 TB) in a chassis only 87 mm high.

Choose the SR850 V4 if…

  • Cores, fully populated: 344 against 240 on the SR850 V3
  • Drive bays: 32 against 24 on the SR850 V3
  • Largest power supply: 3,200 W against 2,700 W on the SR850 V3
  • Four sockets and 64 DIMM slots in 2U: filled with 256 GB 3DS RDIMMs the server reaches 16 TB, the same ceiling Lenovo quotes for the 4U SR860 V4.
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.

VirtualisationSR850 V3: 240 cores with 16 TB. SR850 V4: 344 cores with 16 TB.SR850 V4
Databases & in-memoryMemory ceiling 16 TB against 16 TB, across 64 and 64 DIMM slots.Line ball
Storage density24 bays in 2U against 32 in 2U.SR850 V4
AI & acceleration4 accelerators against 4 in the vendor documents.Line ball
Network throughputFastest card listed: 200 GbE class against 400 GbE class.SR850 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.

SpecificationSR850 V3SR850 V4
Processors listed107
Most cores per processor6086
Processor families4th Gen Xeon ScalableXeon 6 P-core

Memory

SpecificationSR850 V3SR850 V4
Largest module listed128 GB256 GB
Fastest rated speed5,600 MT/s6,400 MT/s
Memory typesRDIMM DDR5-4800 · 9x4 RDIMM · 3DS RDIMMRDIMM DDR5-6400 · 3DS RDIMM DDR5-6400 · CXL 2.0 E3.S 2T memory module

Storage

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

SpecificationSR850 V3SR850 V4
Maximum bays2432
Documented layouts24
Bay sizes2.5-inch2.5-inch · E3.S
Boot devicesM.2 SATA/NVMe 2-Bay Enablement Kit (4Y37A09738) · M.2 SATA/x4 NVMe 2-Bay Adapter (4Y37A79663) · M.2 NVMe 2-Bay RAID Adapter (4Y37A09750) + 2 moreM.2 RAID B550i-2i SATA/NVMe Enablement Kit (internal, 2 x M.2 NVMe, Broadcom RAID) · M.2 RAID B545i-2i SATA/NVMe Adapter (internal, 2 x M.2 SATA/NVMe, Broadcom RAID) · M.2 B350i-2i NVMe Enablement Kit (internal, 2 x M.2 NVMe, optional VROC RAID) + 2 more
Storage controllers1615

Accelerators & I/O

SpecificationSR850 V3SR850 V4
Double-wide cards listed01
PCIe network slots129
Network cards listed2914

Power & platform

SpecificationSR850 V3SR850 V4
Power-supply options127
Output range1,100–2,700 W1,300–3,200 W
ManagementXClarity Controller 2XClarity Controller 3
Chassis depthVendors measure depth differently — see each data sheet902 mm906 mm (2.5-inch chassis) / 946 mm (E3.S chassis)
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.

SR850 V3: processors by cores and TDP

Lenovo ThinkSystem SR850 V3 processors0816243240485664150 W200 W250 W300 W350 WCores per processorIntel Xeon Platinum 8490H — 60 cores / 120 threads · 350 W · 1.9 GHz base · 112.5 MB cache · DDR5-4800Intel Xeon Platinum 8468H — 48 cores / 96 threads · 330 W · 2.1 GHz base · 105 MB cache · DDR5-4800Intel Xeon Platinum 8460H — 40 cores / 80 threads · 330 W · 2.2 GHz base · 105 MB cache · DDR5-4800Intel Xeon Platinum 8454H — 32 cores / 64 threads · 270 W · 2.1 GHz base · 82.5 MB cache · DDR5-4800Intel Xeon Gold 6448H — 32 cores / 64 threads · 250 W · 2.4 GHz base · 60 MB cache · DDR5-4800Intel Xeon Platinum 8450H — 28 cores / 56 threads · 250 W · 2 GHz base · 75 MB cache · DDR5-4800Intel Xeon Gold 6418H — 24 cores / 48 threads · 185 W · 2.1 GHz base · 60 MB cache · DDR5-4800Intel Xeon Gold 6416H — 18 cores / 36 threads · 165 W · 2.2 GHz base · 45 MB cache · DDR5-4800Intel Xeon Platinum 8444H — 16 cores / 32 threads · 270 W · 2.9 GHz base · 45 MB cache · DDR5-4800Intel Xeon Gold 6434H — 8 cores / 16 threads · 195 W · 3.7 GHz base · 22.5 MB cache · DDR5-48008490H60 cores · 5.8 W/core — top SKU and most efficient
4th Gen Xeon Scalable 10Bubble size = L3 cache · hover a bubble for the full SKU

SR850 V4: processors by cores and TDP

Lenovo ThinkSystem SR850 V4 processors0816243240485664728088150 W200 W250 W300 W350 WCores per processorIntel Xeon 6 6788P — 86 cores / 172 threads · 350 W · 2 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6 6768P — 64 cores / 128 threads · 330 W · 2.4 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6 6748P — 48 cores / 96 threads · 300 W · 2.5 GHz base · 192 MB cache · DDR5-6400Intel Xeon 6 6738P — 32 cores / 64 threads · 270 W · 2.9 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6728P — 24 cores / 48 threads · 210 W · 2.7 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6 6724P — 16 cores / 32 threads · 210 W · 3.6 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6 6714P — 8 cores / 16 threads · 165 W · 4 GHz base · 48 MB cache · DDR5-64006 6788P86 cores · 4.1 W/core — top SKU and most efficient
Xeon 6 P-core 7Bubble size = L3 cache · hover a bubble for the full SKU

SR850 V3: memory with every slot filled

16 GB1 TB32 GB2 TB64 GB4 TB96 GB6 TB128 GB8 TB64 slots · 16 per processor · each tick = one DIMM

SR850 V4: memory with every slot filled

32 GB2 TB64 GB4 TB96 GB6 TB128 GB8 TB256 GB16 TB64 slots · 16 per processor · each tick = one DIMM

SR850 V3: drive bays

Front panel

8 × 2.5" SAS/SATA at the front — 8 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR850 V4: drive bays

Front panel

8 × 2.5" SAS/SATA at the front — 8 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR850 V3: power supplies

0500100015002000250030001100 W Platinum — Platinum power supplies (available in all markets); input 230V/115V; max quantity 21100Platinum1100 W Titanium — Titanium power supplies (available in all markets); input 230V; max quantity 21100Titanium1300 W Platinum — Power supplies for customers in China only; input 230V/115V; CRPS; China only; max quantity 21300Platinum1300 W Platinum — Power supplies for customers in China only; input 230V/115V; CRPS; China only; max quantity 21300Platinum1600 W n/a (DC input) — Power supplies for customers in China only; input 336V HVDC; CRPS; China only; max quantity 21600DC1600 W n/a (DC input) — Power supplies for customers in China only; input -48V DC; CRPS; China only; max quantity 21600DC1800 W Platinum — Platinum power supplies (available in all markets); input 230V; max quantity 21800Platinum1800 W Titanium — Titanium power supplies (available in all markets); input 230V; max quantity 21800Titanium2400 W Platinum — Platinum power supplies (available in all markets); input 230V; max quantity 22400Platinum2600 W Titanium — Titanium power supplies (available in all markets); input 230V; max quantity 22600Titanium2700 W Platinum — Power supplies for customers in China only; input 230V; CRPS; China only; max quantity 22700Platinum2700 W Platinum — Power supplies for customers in China only; input 230V; CRPS; China only; max quantity 22700PlatinumWatts · dashed line = output at 100–120 V low line
AC277 VAC / HVDC−48 V DC

SR850 V4: power supplies

05001000150020002500300035001300 W not stated — -48V DC (-44V to -54V), CRPS Premium, BizLink 115H0-025987-R1 connector; efficiency rating not stated in doc; max 21300DC1300 W Platinum — HVAC/HVDC 200-277V AC / 240-380V DC, CRPS Premium, Amphenol 10167814-002 connector; max 21300Platinum2000 W Titanium — 230V AC, CRPS Premium, C14 connector; max 22000Titanium2700 W Platinum — 230V AC, CRPS v2.3, C20 connector; max 22700Platinum2700 W Platinum — 230V AC, CRPS v2.4, C20 connector; max 22700Platinum2700 W Titanium — 230V AC, CRPS Premium, C20 connector; max 22700Titanium3200 W Titanium — 230V AC, CRPS Premium, C20 connector; max 23200TitaniumWatts · dashed line = output at 100–120 V low line
AC277 VAC / HVDC−48 V DC
07 — Questions

SR850 V3 vs SR850 V4, answered

Is the SR850 V3 or the SR850 V4 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The SR850 V3 lists 10 processors up to 60 cores at 350 W; the SR850 V4 lists 7 up to 86 cores at 350 W. Fully populated that is 240 cores against 344.

Which holds more memory?

The SR850 V3 has 64 DIMM slots and a stated ceiling of 16 TB. The SR850 V4 has 64 and 16 TB.

Which takes more drives?

SR850 V3: 24 bays across 2 documented layouts. SR850 V4: 32 across 4. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

SR850 V3: up to 4 accelerators, 0 double-wide cards listed. SR850 V4: up to 4, 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. SR850 V3: Lenovo ThinkSystem SR850 V3 Server Product Guide (publication date is not printed in the text export) (Lenovo document). SR850 V4: Lenovo ThinkSystem SR850 V4 Server (September 7, 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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