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Technical data sheet · ThinkSystem V3 · 2U four-socket

Lenovo ThinkSystem SR850 V3Specifications, configurations & comparisons

The ThinkSystem SR850 V3 puts four 4th Gen Intel Xeon Scalable processors and 64 DDR5 DIMM slots in a 2U chassis, and can be bought with two processors and taken to four later. It is built for scale-up databases, ERP and consolidation that outgrow a two-socket server but not a 2U slot; this page sets out its processor, memory, drive, riser and GPU rules.

2U Rack2 or 4 sockets4th Gen Xeon ScalableXClarity Controller 2
4processor socketsorder with 2, expand to 4
240cores maximum4 × 60-core Platinum 8490H
16TBDDR5 ceiling64 × 256 GB 3DS RDIMM
242.5" drive baysall AnyBay-capable · 24 NVMe
12PCIe slotsplus 2 × OCP 3.0
2double-wide GPUsor 4 single-wide

Every figure checked against the Lenovo ThinkSystem SR850 V3 Server Product Guide

Form factor
2U Rack · 4 sockets
Processors
4th Gen Xeon
Memory
64 × DDR5 RDIMM · up to 16 TB
Drive bays
Up to 24 · 2 backplane options
Expansion
12 × PCIe · 2 × OCP 3.0
GPUs
Up to 4 · 1 listed
Boot
M.2 and 7 mm · 5 boot options
Management
XClarity Controller 2
01 — Overview

The SR850 V3 at a glance

Our read of Lenovo’s documentation: where the SR850 V3 is strong, and the limits worth knowing before you spec one.

Strengths

  • Four sockets, up to 240 cores and 64 DIMM slots (16 TB) in a chassis only 87 mm high.
  • A staged purchase is supported: two processors bring 32 DIMM slots and 8 TB on day one, and sockets 3 and 4 can be filled later.
  • Every one of the 24 front bays can be NVMe, each on its own Gen5 x4 onboard link — no retimer or switch cards and no oversubscription.
  • Two OCP 3.0 SFF slots, each PCIe 5.0 x16, on top of as many as 12 riser slots.
  • XCC2 Platinum is standard, so remote console, virtual media and System Guard come without a licence upgrade.

Watch-outs

  • The chassis base is fixed in the factory: GPUs and full-length cards need base BT69, and the low-profile (BT67) or half-length (BT68) bases cannot be converted later.
  • Double-wide GPUs are allowed only with the 18-core, 165 W Gold 6416H, and Lenovo’s GPU table lists just the single-wide L4 today.
  • Big DIMMs cost drive bays: 96 GB RDIMMs and 128 GB 3DS RDIMMs cap the server at two backplanes (16 bays), 256 GB 3DS RDIMMs at one.
  • A two-processor server is limited to eight NVMe drives, five or six PCIe slots and four single-wide GPUs, with no double-wide cards.
  • There are no 3.5-inch bays, so spinning-disk capacity stops at 24 × 2.5-inch drives — 57.6 TB with 2.4 TB HDDs.
Processors10 SKUs
Cores / CPU8–60
DIMM slots64
Backplanes2
Max bays24
GPUsup to 4
PSU options12 · to 2,700 W
02 — Processors

10 supported processors, mapped

Ten 4th Gen Xeon Scalable processors are offered, all Gold or Platinum H-series parts, from the 8-core Gold 6434H to the 60-core Platinum 8490H. Each provides 80 PCIe 5.0 lanes, eight DDR5 channels and three UPI links at 16 GT/s, and with four fitted the processors are joined in a mesh.

Processor landscape — cores × TDP

10 SKUs · 1 family
Lenovo ThinkSystem SR850 V3: every supported processor by cores and TDP0816243240485664150 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

Processor explorer

filter · sort · compare
ProcessorCores / threadsBaseL3 cacheTDPW / coreMemory
Intel Xeon Platinum 8490H60 / 1201.9 GHz112.5 MB350 W5.8DDR5-4800
Intel Xeon Platinum 8468H48 / 962.1 GHz105 MB330 W6.9DDR5-4800
Intel Xeon Platinum 8460H40 / 802.2 GHz105 MB330 W8.3DDR5-4800
Intel Xeon Platinum 8454H32 / 642.1 GHz82.5 MB270 W8.4DDR5-4800
Intel Xeon Gold 6448H32 / 642.4 GHz60 MB250 W7.8DDR5-4800
Intel Xeon Platinum 8450H28 / 562 GHz75 MB250 W8.9DDR5-4800
Intel Xeon Gold 6418H24 / 482.1 GHz60 MB185 W7.7DDR5-4800
Intel Xeon Gold 6416H18 / 362.2 GHz45 MB165 W9.2DDR5-4800
Intel Xeon Platinum 8444H16 / 322.9 GHz45 MB270 W16.9DDR5-4800
Intel Xeon Gold 6434H8 / 163.7 GHz22.5 MB195 W24.4DDR5-4800
  • Two or four processors are the supported configurations; a three-processor server needs a special bid.
  • Lenovo’s tables disagree on two TDPs: the option descriptions in the ordering table give the Gold 6434H 205 W and the 6448H 225 W, while the processor-features table gives 195 W and 250 W. The explorer uses the features-table figures.
  • Double-wide GPUs and other full-length cards require 1U heatsinks on the rear processors, which cap TDP at 165 W — only the Gold 6416H qualifies.
  • QAT and DLB engines are present only on the 6448H, 8454H, 8468H and 8490H; every model includes DSA and IAA.
03 — Memory

64 DIMM slots, 16 per processor

Sixteen DIMM slots belong to each processor (two in each of its eight DDR5 channels): 64 in a four-processor server, 32 in a two-processor one. Modules run at 4800 MT/s with one per channel and 4400 MT/s with two. Per processor, Lenovo supports populations of one, two, four, six, eight, twelve or sixteen DIMMs.

Capacity with every slot filled

by DIMM size
16 GB1 TB32 GB2 TB64 GB4 TB96 GB6 TB8 or 16 per CPU128 GB8 TBruns at 480064 slots · 16 per processor · each tick = one DIMM

Operating speed

per Lenovo memory tables
Processor1 DIMM / channel2 DIMMs / channel
4th Gen Xeon Scalable (H-series)4800 MT/s4400 MT/s
  • Lenovo gives 16 TB as the maximum (64 × 256 GB 3DS RDIMMs, 4 TB per processor), yet this guide’s memory table lists only RDIMMs from 16 GB to 128 GB; with those, four processors reach 8 TB (64 × 128 GB). We confirm 3DS availability at quotation.
  • The 128 GB module (4X77A93887) is a 5600 MHz part that runs at up to 4800 MHz in this server.
  • 96 GB RDIMMs go in only as 8 or 16 per processor, and 128 GB and 256 GB 3DS modules may be mixed only as eight of each per processor.
  • Thermal rules tie DIMM size to drive count: 96 GB RDIMMs and 128 GB 3DS RDIMMs allow two backplanes (16 drives), 256 GB 3DS RDIMMs one (8 drives).
  • SDDC and ADDDC need 10x4 modules, and 9x4 modules give up mirroring. DIMM types, x4/x8 organisations and DRAM densities cannot be mixed, and a processor takes at most two capacities.
04 — Storage

2 backplane options, up to 24 bays

Every drive bay is 2.5-inch and front-mounted: three 8-bay backplanes, each either SAS/SATA or AnyBay, for up to 24 drives. Up to 24 NVMe drives connect straight to the processors over Gen5 x4 links with no retimer cards. The layouts below come from Lenovo’s supported drive-bay combinations, which also fix the processor count each one needs.

Headline layouts

front panel view

Front panel

Three SAS/SATA backplanes (BT3A): 24 SAS or SATA drives on a RAID adapter or HBA, supported with two or four processors.

SAS/SATANVMeSAS/SATA + NVMe

Controllers & boot

  • Intel VROC (VMD NVMe RAID) Standard (supports RAID 0, 1, 10 for all brands of drives) — Software RAID. Onboard NVMe - Intel VROC NVMe RAID; RAID levels: see Intel VROC section of the guide
  • Intel VROC (VMD NVMe RAID) Premium (license upgrade - to enable RAID-5 support) — Software RAID. Onboard NVMe - Intel VROC NVMe RAID; RAID levels: see Intel VROC section of the guide
  • Intel VROC RAID1 Only — Software RAID. Onboard NVMe - Intel VROC NVMe RAID; RAID 1 only (no RAID 0/10/5); Intel and non-Intel NVMe SSDs (Table 18)
  • 440-8i SAS/SATA PCIe Gen4 12Gb HBA — HBA. 12Gb SAS/6Gb SATA HBAs - Broadcom PCIe 4.0
  • 440-16i SAS/SATA PCIe Gen4 12Gb HBA — HBA. 12Gb SAS/6Gb SATA HBAs - Broadcom PCIe 4.0
  • RAID 540-8i PCIe Gen4 12Gb Adapter — RAID. 12Gb SAS/6Gb SATA RAID Adapters - Broadcom PCIe 4.0
  • RAID 540-16i PCIe Gen4 12Gb Adapter — RAID. 12Gb SAS/6Gb SATA RAID Adapters - Broadcom PCIe 4.0
  • RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter — RAID, 4GB cache. 12Gb SAS/6Gb SATA RAID Adapters - Broadcom PCIe 4.0
  • M.2 SATA/NVMe 2-Bay Enablement Kit (4Y37A09738) — boot
  • M.2 SATA/x4 NVMe 2-Bay Adapter (4Y37A79663) — boot
  • M.2 NVMe 2-Bay RAID Adapter (4Y37A09750) — boot
  • M.2 RAID B540i-2i SATA/NVMe Adapter (4Y37A90063) — boot
All 17 controllers and 5 boot options
  • RAID 940-8i 8GB Flash PCIe Gen4 12Gb Adapter — RAID, 8GB cache. 12Gb SAS/6Gb SATA RAID Adapters - Broadcom PCIe 4.0
  • RAID 940-16i 4GB Flash PCIe Gen4 12Gb Adapter — RAID, 4GB cache. 12Gb SAS/6Gb SATA RAID Adapters - Broadcom PCIe 4.0
  • RAID 940-16i 8GB Flash PCIe Gen4 12Gb Adapter — RAID, 8GB cache. 12Gb SAS/6Gb SATA RAID Adapters - Broadcom PCIe 4.0
  • RAID 940-32i 8GB Flash PCIe Gen4 12Gb Adapter — RAID, 8GB cache. 12Gb SAS/6Gb SATA RAID Adapters - Broadcom PCIe 4.0; RAID levels: None
  • RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter — RAID, 4GB cache. NVMe Adapters; RAID levels: not stated in this table; Tri-Mode (U.3 NVMe x1) usage of the same adapter, separate feature code
  • RAID 940-8i 8GB Flash PCIe Gen4 12Gb Adapter — RAID, 8GB cache. NVMe Adapters; RAID levels: not stated in this table; Tri-Mode (U.3 NVMe x1) usage of the same adapter, separate feature code
  • RAID 940-16i 4GB Flash PCIe Gen4 12Gb Adapter — RAID, 4GB cache. NVMe Adapters; RAID levels: not stated in this table; Tri-Mode (U.3 NVMe x1) usage of the same adapter, separate feature code
  • RAID 940-16i 8GB Flash PCIe Gen4 12Gb Adapter — RAID, 8GB cache. NVMe Adapters; RAID levels: not stated in this table; Tri-Mode (U.3 NVMe x1) usage of the same adapter, separate feature code
  • ThinkSystem 440-16e SAS/SATA PCIe Gen4 12Gb HBA — HBA. External SAS HBA (JBOD to external enclosures/tape), part 4Y37A09724 feature B8P7 - lp1605 L2436
  • 7mm SATA/NVMe 2-Bay Rear Hot-Swap RAID Enablement Kit (4Y37A90062, feature BYFG; SATA or NVMe, integrated Broadcom SAS3808N RAID; max 1; full-height-slot bases BT68/BT69 only; mutually exclusive with M.2) — boot
  • With two processors the NVMe count stops at eight, whatever the backplane mix.
  • One RAID adapter can serve all 24 bays; RAID 940 adapters come in 8-, 16- and 32-port versions with up to 8 GB of flash, alongside 440 HBAs.
  • Boot goes on an internal M.2 module (four adapter choices, VROC or on-card RAID) or on two rear 7mm hot-swap drives in place of slots 3 and 4. They share connectors, so a server has one or the other.
  • 7mm bays exist only on the full-height bases (BT68 and BT69), not on the 12-slot low-profile base.
  • The ConnectX-6 Dx 100GbE, ConnectX-6 HDR/200GbE, ConnectX-7 NDR200 and ConnectX-7 NDR400 adapters also limit the server to two backplanes for thermal reasons.
  • Intel VROC provides RAID on the onboard NVMe ports — including M.2 and 7mm boot drives — without an adapter; RAID 5 needs the Premium licence.

Every documented backplane

2 with drive bays
SR850 V3 8x 2.5" AnyBay Backplane Option KitSR850 V3 8x 2.5" AnyBay Backplane Option Kit8SR850 V3/SR860 V3 8x 2.5" SAS/SATA Backplane Optio…SR850 V3/SR860 V3 8x 2.5" SAS/SATA Backplane Option Kit8Bays · solid = front · dashed = rear · brighter = NVMe-only
2.5-inch3.5-inchEDSFF (E1.S / E3.S)
05 — Accelerators & I/O

GPUs, PCIe and networking

GPU support is decided when the server is built: only the BT69 base, with full-length slots and low-height heatsinks on the rear processors, takes GPUs, and it cannot be retrofitted. Lenovo quotes up to four single-wide or two double-wide cards, but its GPU table currently lists only the NVIDIA L4 — four at most, Controlled, and running at x8 in slots 3 and 9. Up to 4 × single-wide or 2 × double-wide GPUs (base BT69 only).

NVIDIA L4 24GB PCIe Gen4 Passive GPU

single-wide
24GB · up to 4

I/O topology

80 lanes per CPU
CPU 180 × PCIe 5.08 ch · 16 DIMMCPU 280 × PCIe 5.08 ch · 16 DIMMCPU 380 × PCIe 5.08 ch · 16 DIMMCPU 480 × PCIe 5.08 ch · 16 DIMMUPI · 3 links per CPU · 16 GT/s · mesh12 low-profile slots (BT67)12 × Gen4, or 8 × Gen5 + 4 × Gen46 FH + 3 LP slots (BT68/69)9 × Gen4, or 6 × Gen5 + 1 × Gen42 × OCP 3.0 SFF slotsPCIe 5.0 x16 host interface eachXCC2 Platinum standardrear 1GbE RJ-45 · AST2600 BMC

Each processor supplies up to 80 PCIe 5.0 lanes, but all expansion arrives through risers and the slot count depends on the chassis base. The low-profile base carries four risers and 12 slots; the full-height bases carry three risers with six full-height and three low-profile slots. Two OCP 3.0 slots come with either.

Network adapters Lenovo lists

29 options
AdapterPortsForm
Broadcom 5719 1GbE RJ45 4-port OCP Ethernet Adapter4 × 1GbEOCP 3.0
Intel I350 1GbE RJ45 4-Port OCP Ethernet Adapter V24 × 1GbEOCP 3.0
Broadcom 57412 10GBase-T 4-Port OCP Ethernet Adapter4 × 10GBase-TOCP 3.0
Broadcom 57416 10GBASE-T 2-port OCP Ethernet Adapter2 × 10GBASE-TOCP 3.0
Intel X710-T2L 10GBASE-T 2-port OCP Ethernet Adapter2 × 10GBASE-TOCP 3.0
Intel X710-T4L 10GBase-T 4-Port OCP Ethernet Adapter4 × 10GBase-TOCP 3.0
Broadcom 57414 10/25GbE SFP28 2-Port OCP Ethernet Adapter2 × 10/25GbEOCP 3.0
Broadcom 57504 10/25GbE SFP28 4-Port OCP Ethernet Adapter4 × 10/25GbEOCP 3.0
Intel E810-DA2 10/25GbE SFP28 2-Port OCP Ethernet Adapter2 × 10/25GbEOCP 3.0
Intel E810-DA4 10/25GbE SFP28 4-Port OCP Ethernet Adapter4 × 10/25GbEOCP 3.0
Mellanox ConnectX-6 Lx 10/25GbE SFP28 2-port OCP Ethernet Adapter2 × 10/25GbEOCP 3.0
Broadcom 57508 100GbE QSFP56 2-Port OCP Ethernet Adapter2 × 100GbEOCP 3.0
Broadcom 5719 1GbE RJ45 4-Port PCIe Ethernet Adapter4 × 1GbEPCIe
I350-T4 PCIe 1Gb 4-Port RJ45 Ethernet Adapter4 × 1GbPCIe
Broadcom 57412 10GBase-T 4-Port PCIe Ethernet Adapter4 × 10GBase-TPCIe
Broadcom 57416 10GBASE-T 2-Port PCIe Ethernet Adapter2 × 10GBASE-TPCIe
Intel X710-T2L 10GBase-T 2-Port PCIe Ethernet Adapter2 × 10GBase-TPCIe
Intel X710-T4L 10GBase-T 4-Port PCIe Ethernet Adapter4 × 10GBase-TPCIe
Broadcom 57414 10/25GbE SFP28 2-port PCIe Ethernet Adapter2 × 10/25GbEPCIe
Broadcom 57504 10/25GbE SFP28 4-port PCIe Ethernet Adapter4 × 10/25GbEPCIe
Intel E810-DA2 10/25GbE SFP28 2-Port PCIe Ethernet Adapter2 × 10/25GbEPCIe
Intel E810-DA4 10/25GbE SFP28 4-Port PCIe Ethernet Adapter4 × 10/25GbEPCIe
Mellanox ConnectX-6 Lx 10/25GbE SFP28 2-port PCIe Ethernet Adapter2 × 10/25GbEPCIe
Broadcom 57508 100GbE QSFP56 2-Port PCIe 4 Ethernet Adapter2 × 100GbEPCIe
Mellanox ConnectX-6 Dx 100GbE QSFP56 2-port PCIe Ethernet Adapter2 × 100GbEPCIe
Mellanox ConnectX-6 HDR100/100GbE QSFP56 1-port PCIe VPI Adapter1 × HDR100/100GbEPCIe
NVIDIA ConnectX-7 NDR200/200GbE QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter2 × NDR200/200GbEPCIe
Mellanox ConnectX-6 HDR/200GbE QSFP56 1-port PCIe 4 VPI Adapter1 × HDR/200GbEPCIe
NVIDIA ConnectX-7 NDR400 OSFP 1-port PCIe Gen5 VPI Adapter1 × NDR400PCIe
  • Every x8 slot has a physical x16 connector.
  • The Gen5 riser set on the full-height bases populates seven slots — six Gen5 and one Gen4 — rather than nine.
  • Only base BT69 has full-length slots; on BT68 the full-height slots are half-length.
  • A serial port, available only in factory builds, takes the place of slot 11.
  • Two-processor servers keep five full-height half-length or six half-height slots.
06 — Power & cooling

12 power supplies, 1,100–2,700 W

The SR850 V3 holds two hot-swap supplies, configured for redundancy and always of matching wattage. Titanium units come in 1100, 1800 and 2600 W and Platinum units in 1100, 1800 and 2400 W; of these, only the 1100 W Platinum also accepts 115 V input.

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
  • The 1100 W and 1800 W supplies take C13 cords; the 2400 W and 2600 W units take C19.
  • On 100–127 V mains the 1100 W Platinum needs a power cable rated above 10 A.
  • China-only CRPS options add 1300 W and 2700 W Platinum AC units and 1600 W supplies for 336 V HVDC or −48 V DC; CRPS and standard supplies use different power distribution boards and cannot be swapped in the field.
  • Cooling is six 60 mm dual-rotor hot-swap fans with N+1 redundancy, a fan on each of the two upper riser units and one in each supply.
  • Measured from the rack flange, the chassis extends to 869 mm at the PSU handles with supplies up to 1100 W, 897 mm with 1800 W and 923 mm with 2400 W.
  • Zero-output (standby) mode is not supported.
07 — Management, security & OS

Run it, secure it, choose the OS

Management

  • XClarity Controller 2 (XCC2) on an ASPEED AST2600 BMC
  • XCC2 Platinum included: remote KVM, virtual media, boot capture, power capping, System Guard, Neighbor Group
  • Dedicated rear 1GbE management port · optional Redundant System Management Port Adapter
  • XClarity Provisioning Manager (UEFI, F1 at boot)
  • XClarity One, XClarity Integrator plugins and XClarity Energy Manager
  • IPMI-over-LAN disabled by default (enable in the factory if required)
  • Optional External Diagnostics Handset on the front diagnostics port
  • XClarity Mobile via the front USB 2.0 port

Security

  • Platform Firmware Resiliency hardware Root of Trust (NIST SP 800-193)
  • TPM 2.0 on the Root of Trust module
  • UEFI Secure Boot, factory-enabled or left for the customer
  • System Guard and CNSA 1.0 Enterprise Strict Security (XCC2 Platinum)
  • Intel TDX, SGX and TME/MKTME
  • Self-encrypting drives with KMIP key managers, including IBM SKLM
  • Chassis intrusion switch (standard on some models) · optional lockable front bezel
  • NIST SP 800-147B compliant

Operating systems

  • Microsoft Windows Server 2019, 2022 and 2025
  • Red Hat Enterprise Linux 8.6 to 10.2
  • SUSE Linux Enterprise Server 15 (SP4–SP7) and 16
  • Ubuntu 20.04, 22.04, 24.04 and 26.04 LTS
  • VMware ESXi 7.0 U3, 8.0 (to U3), 9.0 and 9.1 · factory preload available
08 — Compare

SR850 V2 → SR850 V3 → SR850 V4

Two Lenovo comparison tables frame the SR850 V3: one against the Cooper Lake-based SR850 V2 in its own guide, and one against the Xeon 6 SR850 V4 in the successor’s guide. The V3 brought DDR5, PCIe 5.0 and a second OCP slot; the V4 raises cores and memory speed but lowers the slot maximum.

Previous generationThinkSystem SR850 V2
This modelThinkSystem SR850 V3
Processors
4 × 3rd Gen Xeon Scalable (Cooper Lake) · 28 cores · 250 W
4 × 4th Gen Xeon Scalable · 60 cores · 350 W
4 × Xeon 6700 P-core · 86 cores · 350 W
PCIe lanes per CPU
48 × PCIe 3.0
80 × PCIe 5.0
88 × PCIe 5.0
Memory
DDR4 to 3200 MHz · 6 channels · 48 DIMMs
DDR5 to 4800 MHz · 8 channels · 64 DIMMs
DDR5 to 6400 MHz · 8 channels · 64 DIMMs · CXL 2.0
Maximum memory
12 TB
16 TB
16 TB
Drive bays
24 × 2.5" · 24 NVMe (Gen3), 16 direct
24 × 2.5" · 24 NVMe (Gen4/Gen5), all direct
24 × 2.5" or 32 × E3.S 1T
PCIe slots
Up to 7, all Gen3
Up to 12 (Gen4, or 8 Gen5 + 4 Gen4)
Up to 9 (7 Gen5 + 2 Gen4)
OCP 3.0
1 × PCIe 3.0 x16
2 × PCIe 5.0 x16
2 × PCIe 5.0
GPUs
2 single-wide
4 single-wide or 2 double-wide
4 single-wide or 2 double-wide
Boot drives
2 × 7mm in a dedicated bay (hardware RAID)
2 × 7mm in a slot or 2 × internal M.2 (VROC)
2 × internal M.2 or 2 × rear hot-swap M.2
Management
XClarity Controller
XClarity Controller 2
XClarity Controller 3
AC power supplies
750–2600 W
1100–2600 W
1300, 2000, 2700 and 3200 W

Source: Lenovo Press LP1605 (SR850 V3 product guide), Table 1 — SR850 V3 vs SR850 V2; Lenovo Press LP2230 (SR850 V4 product guide), Table 2 — SR850 V4 vs SR850 V3.

The SR850 V3 family side by side

The SR850 V3 is Lenovo’s dense four-socket V3 server. The SR860 V3 uses the same processors and 64 DIMM slots in 4U with twice the drive bays and more GPU room, the SR950 V3 scales to eight sockets, the SR650 V3 and SR630 V3 are the two-socket Intel models, and the SR850 V4 is the Xeon 6 successor.

SR850 V3SR860 V3SR950 V3SR650 V3SR630 V3SR850 V4Cores / CPUSR850 V3: 6060SR860 V3: 6060SR950 V3: 6060SR650 V3: 6464SR630 V3: 6464SR850 V4: 8686DIMM slotsSR850 V3: 6464SR860 V3: 6464SR950 V3: 128128SR650 V3: 3232SR630 V3: 3232SR850 V4: 6464Max memorySR850 V3: 16 TB16SR860 V3: 16 TB16SR950 V3: 32 TB32SR650 V3: 8 TB8SR630 V3: 8 TB8SR850 V4: 16 TB16Max drive baysSR850 V3: 2424SR860 V3: 4848SR950 V3: 1616SR650 V3: 4040SR630 V3: 1616SR850 V4: 3232Max GPUsSR850 V3: 44SR860 V3: 88SR950 V3: 00SR650 V3: 88SR630 V3: 33SR850 V4: 44Largest PSUSR850 V3: 2,700 W2,700SR860 V3: 2,700 W2,700SR950 V3: 1,800 W1,800SR650 V3: 2,600 W2,600SR630 V3: 1,800 W1,800SR850 V4: 3,200 W3,200
This modelSiblings and successorEach value from that model’s own verified spec file · bars scale per column

Head-to-head comparisons

Every figure on this page, set against the machines buyers weigh it up with.

09 — Use cases

Four builds that suit the SR850 V3

Four starting configurations for the SR850 V3, built only from parts our Lenovo configurator allows on this chassis. Adjust any of them online; the base, backplane-count and inlet-temperature rules Lenovo attaches to four-socket builds are confirmed at quotation.

In-memory databases

Four-socket in-memory host

Four 40-core Platinum 8460H processors give 160 cores, and eight 128 GB RDIMMs per processor put one module in every channel — 4 TB at the full 4800 MT/s rather than the 4400 MT/s of two per channel. Lenovo also offers a dedicated SAP HANA machine type (7D98) for this server.

  • 4 × Xeon Platinum 8460H — 40 cores @ 2.2 GHz, 330 W each
  • 32 × 128 GB TruDDR5 — 4 TB, one DIMM per channel, at 4800 MT/s
  • 8 × 3.84 TB NVMe U.3 on one AnyBay backplane
  • 2 × 480 GB M.2 boot
  • Broadcom 57414 2 × 25GbE OCP 3.0
  • 2 × 2600 W Titanium
  • SUSE Linux Enterprise Server 15 SP5

Processors above 250 W and 128 GB modules each hold inlet air to 30 °C, and 128 GB RDIMMs limit the front to 16 drives.

Open this build in the configurator →
Consolidation

Two sockets now, four later

Two 28-core Platinum 8450H processors to start, with sockets 3 and 4 kept for growth. Sixteen 64 GB DIMMs give 1 TB at one per channel, and the eight NVMe drives are the most a two-processor SR850 V3 supports.

  • 2 × Xeon Platinum 8450H — 28 cores @ 2 GHz, 250 W each
  • 16 × 64 GB TruDDR5 — 1 TB, one DIMM per channel
  • 8 × 7.68 TB NVMe U.3 — the two-processor NVMe maximum
  • 2 × 480 GB M.2 boot
  • Intel E810-DA2 2 × 25GbE OCP 3.0
  • 2 × 1800 W Titanium
  • VMware ESXi 8.0

Until CPUs 3 and 4 are fitted the server has 32 DIMM slots, eight NVMe connections and five or six PCIe slots.

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Transactional databases

High-clock OLTP server

Four 8-core Gold 6434H processors at 3.7 GHz base hold the total to 32 cores for per-core-licensed database engines, with 1 TB of memory, eight SAS SSDs behind a flash-backed RAID 940 and eight NVMe drives wired straight to the processors for hot data.

  • 4 × Xeon Gold 6434H — 8 cores @ 3.7 GHz, 195 W each
  • 32 × 32 GB TruDDR5 — 1 TB, one DIMM per channel
  • 8 × 3.84 TB SAS SSD on a SAS/SATA backplane, RAID 940-8i with 8 GB flash cache
  • 8 × 3.84 TB NVMe U.3 on an AnyBay backplane
  • 2 × 480 GB M.2 boot
  • Broadcom 57504 4 × 25GbE OCP 3.0
  • 2 × 1800 W Titanium
  • Windows Server 2025

Lenovo lists the 6434H at 205 W in one table and 195 W in another; either figure sits in the 35 °C inlet band.

Open this build in the configurator →
VDI & graphics

Four-GPU VDI host

Four NVIDIA L4 cards — the single-wide maximum for this chassis — for GPU-accelerated virtual desktops, with four 32-core Platinum 8454H processors and 2 TB of memory.

  • 4 × Xeon Platinum 8454H — 32 cores @ 2.1 GHz, 270 W each
  • 4 × NVIDIA L4 24 GB, single-wide
  • 32 × 64 GB TruDDR5 — 2 TB
  • 8 × 3.84 TB NVMe U.3 on one AnyBay backplane
  • 2 × 480 GB M.2 boot
  • Intel E810-DA4 4 × 25GbE OCP 3.0
  • 2 × 2600 W Titanium
  • VMware ESXi 8.0

GPUs need the factory BT69 base, and the Controlled L4 ships only on “for AI” models. With single-wide GPUs and 270 W processors Lenovo allows 30 °C inlet and at most eight 2.5-inch drives; an L4 in slot 3 or 9 runs at x8.

Open this build in the configurator →
10 — Refurbished alternatives

When a refurbished server makes more sense

Our refurbished configurator has no four-socket servers, and Lenovo ThinkSystem is not in it at all. If the workload fits in two sockets and 8 TB — the SR850 V3’s own two-processor ceiling — a re-certified Dell or HPE 2U from the DDR4 generation may be enough.

Gen10 Plus · re-certified

HPE ProLiant DL380 Gen10 Plus

  • 2U · two sockets
  • 32 DIMM slots · up to 8 TB DDR4
  • Up to 24 × SFF or 12 × LFF
  • DDR4-3200 · PCIe 4.0 · OCP 3.0 · iLO 5

Matches a two-processor SR850 V3 on memory — 32 slots and 8 TB — for database and virtualisation work that will never need sockets 3 and 4.

Configure a refurbished DL380 Gen10 Plus →
14G · re-certified

Dell PowerEdge R740xd

  • 2U · two sockets
  • 24 DIMM slots · up to 3 TB DDR4
  • Up to 24 × 2.5" / 12 × 3.5"
  • Up to 24 NVMe · iDRAC9

Keeps a 24-bay, 24-NVMe front for storage-led projects where 3 TB of memory is plenty.

Configure a refurbished R740xd →
11 — Full specifications

Lenovo ThinkSystem SR850 V3 specifications

Chassis & cooling

Form factor2U rack server, four sockets
Machine types7D96 (3-year) · 7D97 (1-year) · 7D98 (SAP HANA, 3-year)
Dimensions (W × H × D)447 × 87 × 902 mm · 482 mm across the EIA flanges
WeightUp to 36.7 kg
Fans6 × 60 mm dual-rotor hot-swap, N+1 · plus riser-unit and PSU fans
Chassis basesBT67 (12 LP slots) · BT68 (FH half-length) · BT69 (GPUs, full-length)
ChipsetIntel C741

Processor

SocketsTwo or four (three by special bid)
Family4th Gen Intel Xeon Scalable, Gold and Platinum H-series
CoresUp to 60 per processor · 240 in total
Maximum TDP350 W
Maximum core speed3.7 GHz
UPI3 links per processor at 16 GT/s · mesh topology
PCIe lanesUp to 80 × PCIe 5.0 per processor

Memory

Slots64 DDR5 (32 with two processors) · 8 channels × 2 DIMMs per CPU
TypesTruDDR5 RDIMM, 9x4 RDIMM and 3DS RDIMM (no UDIMM or LRDIMM)
Listed modules16, 32, 64, 96 and 128 GB RDIMMs
Speed4800 MT/s at 1 DPC · 4400 MT/s at 2 DPC
Maximum16 TB with 64 × 256 GB 3DS RDIMM · 8 TB with two processors
ProtectionECC, SDDC and ADDDC (10x4 DIMMs), memory mirroring
Persistent memoryNot supported

Storage

Front24 × 2.5" hot-swap via three 8-bay backplanes (SAS/SATA or AnyBay)
NVMeUp to 24 direct Gen5 x4 connections (8 with two processors)
3.5-inch baysNot supported
Boot2 × internal M.2 or 2 × rear 7mm (not both)
ControllersIntel VROC (NVMe) · RAID 540 / 940 (8, 16 or 32 ports, up to 8 GB flash) · 440 HBAs
Largest capacity quoted1474.56 TB with 24 × 61.44 TB NVMe SSDs

Expansion & networking

PCIe slotsUp to 12 (BT67) or 9 (BT68/BT69) · Gen4 or Gen5/Gen4 mixes
OCP2 × OCP 3.0 SFF, PCIe 5.0 x16
SerialOptional DB-9 (factory only), in place of slot 11
CXLCXL 1.1 ready

Accelerators

GPU envelopeUp to 4 × single-wide or 2 × double-wide (base BT69)
Listed GPUNVIDIA L4 24 GB (Controlled, up to 4)
Double-wide ruleGold 6416H (165 W) only

Power

SuppliesTwo hot-swap, redundant, identical wattage
AC Titanium1100, 1800 and 2600 W (230 V)
AC Platinum1100 W (230 V / 115 V) · 1800 and 2400 W (230 V)
China onlyCRPS 1300 / 2700 W AC · 1600 W 336 V HVDC or −48 V DC

Ports & video

FrontVGA · 1 × USB 3.2 Gen 1 · 1 × USB 2.0 (XClarity Mobile) · external diagnostics port
Rear3 × USB 3.2 Gen 1 · VGA · 1GbE XCC port · optional DB-9
Video16 MB, integrated in XCC2 · up to 1920 × 1200 at 60 Hz

Environment & warranty

ASHRAEClass A2 in most configurations; A3, A4 or H1 depending on configuration
Operating temperature10–35 °C (A2)
Maximum altitude3,050 m
Warranty1 or 3 years by machine type · CRU and onsite, 9 × 5 next business day
12 — FAQ

SR850 V3 questions, answered from the documentation

What is the maximum memory of the Lenovo ThinkSystem SR850 V3?

Lenovo quotes 16 TB: all 64 slots holding 256 GB 3DS RDIMMs, with four processors at 4 TB each. The memory table in the same guide lists RDIMMs only up to 128 GB, which gives 8 TB across 64 slots, so we confirm 3DS availability when quoting. With two processors there are 32 slots and an 8 TB ceiling.

Which processors does the SR850 V3 support?

Ten 4th Gen Xeon Scalable H-series parts: Gold 6416H, 6418H, 6434H and 6448H, and Platinum 8444H, 8450H, 8454H, 8460H, 8468H and 8490H. Between them they cover 8–60 cores and TDPs from 165 W up to 350 W. Servers take two or four; a three-processor build needs a special bid.

Can the SR850 V3 start with two processors and add two later?

Yes. A two-processor SR850 V3 is a supported configuration with 32 DIMM slots (8 TB), five or six PCIe slots, eight NVMe drives and up to four single-wide GPUs. Adding processors 3 and 4 later brings the rest of the memory, slots and NVMe connections into use.

How many drives does the SR850 V3 hold?

Up to 24 × 2.5-inch hot-swap drives at the front, on three 8-bay SAS/SATA or AnyBay backplanes; there are no 3.5-inch bays. With four processors all 24 can be NVMe. Boot uses an internal M.2 module or two rear 7mm drives.

Does the SR850 V3 support GPUs?

Up to four single-wide or two double-wide GPUs, but only on the BT69 base chosen at the factory. Double-wide cards are restricted to the 165 W Gold 6416H, and the only GPU in Lenovo’s current table is the single-wide NVIDIA L4, a Controlled part sold on “for AI” models.

What power supplies does the SR850 V3 use?

A redundant pair of matching hot-swap supplies. Titanium units are offered at 1100, 1800 and 2600 W and Platinum units at 1100, 1800 and 2400 W; 115 V input is limited to the 1100 W Platinum, and the two largest ratings need C19 cords.

How big and heavy is the SR850 V3?

It is 2U: 447 mm wide (482 mm with the rack flanges), 87 mm high and 902 mm deep. Measured from the rack flange, the power-supply handles reach 923 mm with 2400 W units. Maximum weight is 36.7 kg.

How does the SR850 V3 differ from the SR860 V3?

Both take the same ten processors, 64 DIMM slots and 16 TB. The 4U SR860 V3 doubles the front bays to 48 (still 24 NVMe), offers up to 18 PCIe slots and four power supplies, and supports eight single-wide or four double-wide GPUs. The SR850 V3 fits the four sockets into 2U with 24 bays, 12 slots and two supplies.

What changed in the SR850 V4?

The SR850 V4 uses Xeon 6700-series P-core processors — 86 cores at most, each with 88 lanes of PCIe 5.0 — plus DDR5 up to 6400 MHz, CXL 2.0 memory modules in E3.S bays and up to 32 E3.S 1T drives. Its slot maximum drops to nine, and management moves to XClarity Controller 3.

Is the Lenovo ThinkSystem SR850 V3 end of life?

Lenovo’s SR850 V3 guide carries no end-of-life or end-of-service date and still lists its processors and options as currently supported. Lenovo sells warranty extensions and service upgrades beyond the base term, and our end-of-life checker records any date Lenovo publishes.

Sources & verification

Where these figures come from

Specifications are extracted from Lenovo’s published documents and independently re-checked line by line. Configurations are quote-based; availability and exact options are confirmed at quotation. Last reviewed 2026-09-11.

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