Product comparison · 2 servers

Lenovo ThinkServer RD550 server vs Lenovo ThinkServer RD650 server

121specifications compared
10differ
111identical
15known for one product only

Key differences

Maximum storage capacity
- ThinkServer RD550 server:14.4 TB
- ThinkServer RD650 server:30.8 TB
Number of HDDs supported
- ThinkServer RD550 server:12
- ThinkServer RD650 server:26
USB 2.0 ports quantity
- ThinkServer RD550 server:0
- ThinkServer RD650 server:2
DisplayPorts quantity
- ThinkServer RD550 server:1
- ThinkServer RD650 server:2
PCI Express x8 (Gen 3.x) slots
- ThinkServer RD550 server:2
- ThinkServer RD650 server:8
Chassis type
- ThinkServer RD550 server:Rack (1U)
- ThinkServer RD650 server:Rack (2U)
Depth
- ThinkServer RD550 server:780 mm
- ThinkServer RD650 server:764 mm
Height
- ThinkServer RD550 server:43 mm
- ThinkServer RD650 server:87 mm

Side by side

Differences highlightedShow differences only

Comparison of RD550, RD650
136 specifications	A Lenovo ThinkServer RD550 server Model RD550 View product	B Lenovo ThinkServer RD650 server Model RD650 View product
Processoridentical
Compatible processor seriesKnown for one	Unknown — not stated by the source	Intel® Xeon®
Storage2 differ
Maximum storage capacityDiffers	14.4 TB	30.8 TB
HDD interfaceKnown for one	Serial ATA, Serial Attached SCSI (SAS)	Unknown — not stated by the source
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Number of HDDs supportedDiffers	12	26
Supported HDD sizesKnown for one	Unknown — not stated by the source	2.5"
Supported storage drive interfacesKnown for one	Unknown — not stated by the source	SAS, Serial ATA III
Network1 differ
Ethernet interface typeDiffers	Gigabit Ethernet	10 Gigabit Ethernet, Gigabit Ethernet
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	0	2
DisplayPorts quantityDiffers	1	2
Expansion slots1 differ
PCI Express x8 (Gen 3.x) slotsDiffers	2	8
PCI Express x16 (Gen 3.x) slotsKnown for one	1	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Rack (1U)	Rack (2U)
Rack mountingKnown for one	Unknown — not stated by the source	Yes
Performanceidentical
Noise levelKnown for one	6.5 dB	Unknown — not stated by the source
Software1 differ
Compatible operating systemsDiffers	- Microsoft Windows Server 2012 R2, 2012, 2008 R2, Windows Small Business Server 2011 - Red Hat Enterprise Linux 6.5, SUSE Linux Enterprise Server 11 - VMware vSphere (ESXi) 5.5 U2	Microsoft Windows Server 2012 R2 (Hyper-V) Microsoft Windows Server 2012 (Hyper-V) Microsoft Windows Server 2008 R2 SP1 (Hyper-V) SUSE Linux Enterprise Server Red Hat Enterprise Linux Server VMware vSphere ESXi Citrix XenServer
Operating system installedKnown for one	Unknown — not stated by the source	No
Poweridentical
Number of main power suppliesKnown for one	1	Unknown — not stated by the source
Number of redundant power supplies supportedKnown for one	Unknown — not stated by the source	2
Number of redundant power supplies installedKnown for one	Unknown — not stated by the source	1
Operational conditionsidentical
Operating altitudeKnown for one	0 - 3048 m	Unknown — not stated by the source
Weight & dimensions2 differ
DepthDiffers	780 mm	764 mm
HeightDiffers	43 mm	87 mm
WeightKnown for one	13.5 kg	Unknown — not stated by the source
Other featuresidentical
Security featuresKnown for one	Power-on and administrator password	Unknown — not stated by the source

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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