Product comparison · 2 pcs/workstations

Lenovo ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2 vs Lenovo ThinkCentre M81

8specifications compared
7differ
1identical
107known for one product only

Key differences

Processor cache
- ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2:8 MB
- ThinkCentre M81:3 MB
Memory clock speed
- ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2:1600 MHz
- ThinkCentre M81:1333 MHz
HDD capacity
- ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2:1 TB
- ThinkCentre M81:500 GB
Product type
- ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2:Workstation
- ThinkCentre M81:PC
Width
- ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2:175 mm
- ThinkCentre M81:337 mm
Depth
- ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2:430 mm
- ThinkCentre M81:369 mm
Height
- ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2:425 mm
- ThinkCentre M81:99.7 mm

Side by side

Differences highlightedShow differences only

Comparison of E31, ThinkCentre M81
115 specifications	A Lenovo ThinkStation E31 Intel® Xeon® E3 V2 Family E3-1225V2 Model E31 View product	B Lenovo ThinkCentre M81 View product
Processor1 differ
Processor manufacturerKnown for one	Intel	Unknown — not stated by the source
Processor familyKnown for one	Intel® Xeon® E3 V2 Family	Unknown — not stated by the source
Processor modelKnown for one	E3-1225V2	Unknown — not stated by the source
Processor coresKnown for one	4	Unknown — not stated by the source
Processor threadsKnown for one	4	Unknown — not stated by the source
Processor boost frequencyKnown for one	3.6 GHz	Unknown — not stated by the source
Processor frequencyKnown for one	3.2 GHz	Unknown — not stated by the source
Processor cacheDiffers	8 MB	3 MB
Processor cache typeKnown for one	Smart Cache	Unknown — not stated by the source
Bus typeKnown for one	DMI	Unknown — not stated by the source
FSB ParityKnown for one	No	Unknown — not stated by the source
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor lithographyKnown for one	22 nm	Unknown — not stated by the source
Processor operating modesKnown for one	64-bit	Unknown — not stated by the source
Processor seriesKnown for one	Intel Xeon E3-1200 v2	Unknown — not stated by the source
Processor codenameKnown for one	Ivy Bridge	Unknown — not stated by the source
Thermal Design Power (TDP)Known for one	77 W	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16+1x4, 1x8+3x4, 2x8+1x4	Unknown — not stated by the source
PCI Express slots versionKnown for one	3.0	Unknown — not stated by the source
Number of processors installedKnown for one	1	Unknown — not stated by the source
Processor socketKnown for one	LGA 1155 (Socket H2)	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Known for one	32	Unknown — not stated by the source
SteppingKnown for one	E1	Unknown — not stated by the source
Maximum internal memory supported by processorKnown for one	32 GB	Unknown — not stated by the source
Memory types supported by processorKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory clock speeds supported by processorKnown for one	1333,1600 MHz	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Known for one	25.6 GB/s	Unknown — not stated by the source
ECC supported by processorKnown for one	Yes	Unknown — not stated by the source
Memory1 differ
Internal memory	4 GB	4 GB
Maximum internal memoryKnown for one	32 GB	Unknown — not stated by the source
Internal memory typeKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory layout (slots x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Memory slotsKnown for one	4x DIMM	Unknown — not stated by the source
Memory clock speedDiffers	1600 MHz	1333 MHz
Memory channelsKnown for one	Dual-channel	Unknown — not stated by the source
Storage1 differ
Total storage capacityKnown for one	1 TB	Unknown — not stated by the source
Optical drive typeKnown for one	DVD-RW	Unknown — not stated by the source
Storage mediaKnown for one	HDD	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityDiffers	1 TB	500 GB
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Graphicsidentical
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelKnown for one	Intel® HD Graphics P4000	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	3	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	650 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	1250 MHz	Unknown — not stated by the source
Performance1 differ
Product typeDiffers	Workstation	PC
Audio output channelsKnown for one	5.1 channels	Unknown — not stated by the source
Optical driveidentical
Optical drives quantityKnown for one	1	Unknown — not stated by the source
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Ports & interfacesidentical
USB 2.0 ports quantityKnown for one	5	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	4	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
Headphone outputsKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Poweridentical
Power supplyKnown for one	280 W	Unknown — not stated by the source
Designidentical
Chassis typeKnown for one	Tower	Unknown — not stated by the source
Placement supportedKnown for one	Vertical	Unknown — not stated by the source
Product colourKnown for one	Black	Unknown — not stated by the source
Cooling typeKnown for one	Active	Unknown — not stated by the source
Softwareidentical
Operating system installedKnown for one	Windows 7 Professional	Unknown — not stated by the source
Operating system architectureKnown for one	64-bit	Unknown — not stated by the source
Displayidentical
Display includedKnown for one	No	Unknown — not stated by the source
Processor special featuresidentical
CPU configuration (max)Known for one	1	Unknown — not stated by the source
Embedded options availableKnown for one	Yes	Unknown — not stated by the source
Enhanced Intel SpeedStep TechnologyKnown for one	Yes	Unknown — not stated by the source
Execute Disable BitKnown for one	Yes	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel 64Known for one	Yes	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	Yes	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	No	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
Intel FDI TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Fast Memory AccessKnown for one	Yes	Unknown — not stated by the source
Intel Flex Memory AccessKnown for one	Yes	Unknown — not stated by the source
Intel Identity Protection Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel TSX-NIKnown for one	No	Unknown — not stated by the source
Intel TSX-NI versionKnown for one	0.00	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Yes	Unknown — not stated by the source
Intel® AES New Instructions (Intel® AES-NI)Known for one	Yes	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Yes	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Known for one	No	Unknown — not stated by the source
Processor ARK IDKnown for one	65733	Unknown — not stated by the source
Supported instruction setsKnown for one	AVX	Unknown — not stated by the source
Thermal Monitoring TechnologiesKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	2.0	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	No	Unknown — not stated by the source
Intel® Quick Sync Video TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)Known for one	No	Unknown — not stated by the source
Intel® Identity Protection Technology (Intel® IPT)Known for one	Yes	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)Known for one	No	Unknown — not stated by the source
Conflict-Free processorKnown for one	No	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	175 mm	337 mm
DepthDiffers	430 mm	369 mm
HeightDiffers	425 mm	99.7 mm
WeightKnown for one	11.2 kg	Unknown — not stated by the source
Packaging contentidentical
Mouse includedKnown for one	No	Unknown — not stated by the source
Keyboard includedKnown for one	No	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	1000 Mbit/s

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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