Product comparison · 2 servers

Lenovo ThinkSystem SR550 server vs Lenovo ThinkSystem ST550

74specifications compared
17differ
57identical
20known for one product only

Key differences

Processor model
- ThinkSystem SR550 server:4108
- ThinkSystem ST550:4110
Processor frequency
- ThinkSystem SR550 server:1.8 GHz
- ThinkSystem ST550:2.1 GHz
Embedded options available
- ThinkSystem SR550 server:No
- ThinkSystem ST550:Yes
Memory types supported by processor
- ThinkSystem SR550 server:DDR4-SDRAM
- ThinkSystem ST550:LPDDR4-SDRAM
Memory slots
- ThinkSystem SR550 server:24x DIMM
- ThinkSystem ST550:12
Maximum internal memory
- ThinkSystem SR550 server:3 TB
- ThinkSystem ST550:768 GB
Maximum storage capacity
- ThinkSystem SR550 server:61.4 TB
- ThinkSystem ST550:61.44 TB
Supported HDD sizes
- ThinkSystem SR550 server:2.5"
- ThinkSystem ST550:2.5,3.5"

Side by side

Differences highlightedShow differences only

Comparison of SR550, ThinkSystem ST550
94 specifications	A Lenovo ThinkSystem SR550 server Model SR550 View product	B Lenovo ThinkSystem ST550 View product
Processor4 differ
Processor modelDiffers	4108	4110
Processor frequencyDiffers	1.8 GHz	2.1 GHz
Embedded options availableDiffers	No	Yes
Memory types supported by processorDiffers	DDR4-SDRAM	LPDDR4-SDRAM
Number of QPI linksKnown for one	2	Unknown — not stated by the source
Processor codeKnown for one	SR3GJ	Unknown — not stated by the source
SteppingKnown for one	U0	Unknown — not stated by the source
Memory2 differ
ECCKnown for one	Yes	Unknown — not stated by the source
Memory slotsDiffers	24x DIMM	12
Maximum internal memoryDiffers	3 TB	768 GB
Storage3 differ
Maximum storage capacityDiffers	61.4 TB	61.44 TB
Total storage capacityKnown for one	0 GB	Unknown — not stated by the source
Supported HDD sizesDiffers	2.5"	2.5,3.5"
RAID levelsDiffers	0, 1, 5, 6, 10, 50, 60, JBOD	0, 1, 5, 6, 10, 50, 60
Optical drive typeKnown for one	No	Unknown — not stated by the source
Supported storage drive interfacesKnown for one	SAS, Serial ATA III	Unknown — not stated by the source
HDD interfaceKnown for one	Unknown — not stated by the source	Serial ATA, Serial Attached SCSI (SAS)
Hot-Plug supportKnown for one	Unknown — not stated by the source	Yes
Expansion slots1 differ
PCI Express x16 (Gen 3.x) slotsDiffers	1	2
Design1 differ
Chassis typeDiffers	Rack (2U)	Tower
Rack mountingKnown for one	Yes	Unknown — not stated by the source
Rack railsKnown for one	Yes	Unknown — not stated by the source
Redundant fans supportKnown for one	Yes	Unknown — not stated by the source
Processor special features1 differ
Processor ARK IDDiffers	123544	123547
Poweridentical
Number of redundant power supplies installedKnown for one	1	Unknown — not stated by the source
Number of main power suppliesKnown for one	Unknown — not stated by the source	1
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 45 °C	10 - 35 °C
Operating relative humidity (H-H)Differs	8 - 90%	20 - 80%
Weight & dimensions3 differ
WidthDiffers	482 mm	175.8 mm
DepthDiffers	763.7 mm	666.4 mm
HeightDiffers	86.5 mm	425.5 mm
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
On-board graphics card modelKnown for one	Unknown — not stated by the source	Matrox G200
Ports & interfacesidentical
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	3
VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	1
Softwareidentical
Compatible operating systemsKnown for one	Unknown — not stated by the source	Microsoft Windows Server 2016/2012 R2, Red Hat Enterprise Linux 7.3/6.9, SUSE, Linux Enterprise Server 12 SP2/11 SP4, VMware vSphere (ESXi) 6.5/6.0 U3

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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