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Product comparison · 2 pcs/workstations

Lenovo M91 USFF + ThinkVision L2251p vs Lenovo M91p + L2250p

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  • 111specifications compared
  • 27differ
  • 84identical
  • 29known for one product only

Key differences

The Lenovo M91p + L2250p has 2 more processor cores than the Lenovo M91 USFF + ThinkVision L2251p (4 vs 2). The Lenovo M91 USFF + ThinkVision L2251p has 0.2 GHz more processor frequency than the Lenovo M91p + L2250p (3.3 GHz vs 3.1 GHz). The Lenovo M91p + L2250p has 3 MB more processor cache than the Lenovo M91 USFF + ThinkVision L2251p (6 MB vs 3 MB). Only the Lenovo M91 USFF + ThinkVision L2251p has card reader integrated. Only the Lenovo M91p + L2250p has Intel Trusted Execution Technology.

  • Processor family
    • Intel® Core™ i3
    • Intel® Core™ i5
  • Processor generation
    • 2nd gen Intel® Core™ i3
    • 2nd gen Intel® Core™ i5
  • Processor model
    • i3-2120
    • i5-2400
  • Processor cores
    • 2
    • 4
  • Processor frequency
    • 3.3 GHz
    • 3.1 GHz
  • Processor cache
    • 3 MB
    • 6 MB
  • Thermal Design Power (TDP)
    • 65 W
    • 95 W
  • Tcase
    • 69.1 °C
    • 72.6 °C

Side by side

Differences highlightedShow differences only
140 specifications
A

Lenovo

M91 USFF + ThinkVision L2251pView product
B

Lenovo

M91p + L2250pView product
Processor11 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Core™ i3Intel® Core™ i5
Processor generationDiffers2nd gen Intel® Core™ i32nd gen Intel® Core™ i5
Processor modelDiffersi3-2120i5-2400
Processor coresDiffers24
Processor threads44
Processor boost frequencyKnown for one3.4 GHz
Processor frequencyDiffers3.3 GHz3.1 GHz
Processor cacheDiffers3 MB6 MB
Processor cache typeSmart CacheSmart Cache
Bus typeDMIDMI
FSB ParityNoNo
System bus rate5 GT/s5 GT/s
Processor lithography32 nm32 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core i3-2100 Desktop SeriesIntel Core i5-2400 Desktop Series
Processor codenameSandy BridgeSandy Bridge
Thermal Design Power (TDP)Differs65 W95 W
TcaseDiffers69.1 °C72.6 °C
Maximum number of PCI Express lanes1616
PCI Express slots version2.02.0
Number of processors installed11
Processor socketLGA 1155 (Socket H2)LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)Differs3331
Maximum internal memory supported by processor32 GB32 GB
Memory types supported by processorDiffersDDR3 1066/1333DDR3-SDRAM
Memory clock speeds supported by processorKnown for one1066,1333 MHz
Memory bandwidth supported by processor (max)21 GB/s21 GB/s
ECC supported by processorNoNo
Memory2 differ
Internal memory4 GB4 GB
Maximum internal memoryDiffers8 GB16 GB
Internal memory typeDDR3-SDRAMDDR3-SDRAM
Memory slotsDiffers2x SO-DIMM4x DIMM
Memory clock speed1333 MHz1333 MHz
Memory channelsDual-channelDual-channel
Memory layout (slots x size)Known for one1 x 4 GB
Storage2 differ
Total storage capacityDiffers320 GB500 GB
Optical drive typeDVD-RWDVD-RW
Number of HDDs installed11
HDD capacityKnown for one500 GB
HDD interfaceSATASATA
HDD speed7200 RPM7200 RPM
Card reader integratedDiffersYesNo
RAID levelsKnown for one0, 1
Graphicsidentical
On-board graphics cardYesYes
On-board graphics card familyIntel® HD GraphicsIntel® HD Graphics
On-board graphics card modelIntel® HD Graphics 2000Intel® HD Graphics 2000
Number of displays supported (on-board graphics)22
On-board graphics card base frequency850 MHz850 MHz
On-board graphics card dynamic frequency (max)1100 MHz1100 MHz
On-board graphics card ID0x1020x102
Graphics card familyIntelIntel
Discrete graphics card modelKnown for oneNot available
Performanceidentical
Product typePCPC
Motherboard chipsetIntel® Q67 ExpressIntel® Q67 Express
Networkidentical
Ethernet LANYesYes
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Cabling technologyKnown for one10/100/1000Base-T(X)
Wi-FiNoNo
Wake-on-LAN readyKnown for oneYes
Networking featuresGigabit EthernetGigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity88
DisplayPorts quantity11
HDMI ports quantityKnown for one0
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Line-outKnown for oneYes
Line-inKnown for oneYes
Microphone inYesYes
VGA (D-Sub) ports quantity11
DVI portNoNo
PS/2 ports quantityKnown for one0
Firewire (IEEE 1394) portsKnown for one0
DC-in jackKnown for oneYes
Serial ports quantityKnown for one1
Expansion slotsidentical
Number of 3.5" baysKnown for one2
PCI Express x1 slotsKnown for one1
PCI Express x16 slotsKnown for one1
PCI slotsKnown for one2
Power1 differ
Power supplyDiffers150 W240 W
Designidentical
Chassis typeKnown for oneSFF
Number of 5.25" baysKnown for one1
Cable lock slotKnown for oneYes
Cable lock slot typeKnown for oneKensington
Product colourBlackBlack
Softwareidentical
Operating system installedWindows 7 ProfessionalWindows 7 Professional
Operating system architecture64-bit64-bit
Displayidentical
Display includedYesYes
Display diagonal55.9 cm (22")55.9 cm (22")
Display resolution1680 x 1050 pixels1680 x 1050 pixels
Native aspect ratioKnown for one16:10
Contrast ratio (typical)1000:11000:1
Viewing angle, horizontal170°170°
Viewing angle, vertical160°160°
Display brightnessKnown for one250 cd/m²
Processor special features6 differ
CPU configuration (max)11
Embedded options availableYesYes
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingNoNo
Intel Dual Display Capable TechnologyYesYes
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyYesYes
Intel Fast Memory AccessYesYes
Intel Flex Memory AccessYesYes
Intel Identity Protection Technology version1.001.00
Intel Rapid Storage TechnologyNoNo
Intel Trusted Execution TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)DiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)YesYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)NoNo
Intel® InTru™ 3D TechnologyYesYes
Intel® Insider™YesYes
Intel® Wireless Display (Intel® WiDi)NoNo
Processor ARK IDDiffers5342652207
Processor package size37.5 x 37.5 mm37.5 x 37.5 mm
Supported instruction setsAVXAVX
Thermal Monitoring TechnologiesYesYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersYesNo
Intel® Quick Sync Video TechnologyYesYes
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Identity Protection Technology (Intel® IPT)YesYes
Intel® Anti-Theft Technology (Intel® AT)NoNo
Conflict-Free processorNoNo
Audio1 differ
Audio systemDiffersHigh Definition AudioHD
Weight & dimensions4 differ
WidthDiffers79 mm337 mm
DepthDiffers275 mm369 mm
HeightDiffers238 mm99.7 mm
WeightDiffers4.2 kg7.5 kg
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Compliance industry standardsKnown for oneIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR
Other featuresidentical
Intel segment taggingEnterprise, ProfessionalEnterprise, Professional

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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