Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M90i Intel® Core™ i5 i5-650 vs Lenovo M91p + ThinkVision LS2251

105specifications compared
38differ
67identical
48known for one product only

Key differences

The Lenovo M91p + ThinkVision LS2251 has 2 more processor cores than the Lenovo ThinkCentre M90i Intel® Core™ i5 i5-650 (4 vs 2). The Lenovo ThinkCentre M90i Intel® Core™ i5 i5-650 has 0.06 GHz more processor boost frequency than the Lenovo M91p + ThinkVision LS2251 (3.46 GHz vs 3.4 GHz). The Lenovo ThinkCentre M90i Intel® Core™ i5 i5-650 has 0.1 GHz more processor frequency than the Lenovo M91p + ThinkVision LS2251 (3.2 GHz vs 3.1 GHz). Only the Lenovo M91p + ThinkVision LS2251 has display included. Only the Lenovo M91p + ThinkVision LS2251 has embedded options available.

Processor generation
- ThinkCentre M90i Intel® Core™ i5 i5-650:Intel® Core™ i5
- M91p + ThinkVision LS2251:2nd gen Intel® Core™ i5
Processor model
- ThinkCentre M90i Intel® Core™ i5 i5-650:i5-650
- M91p + ThinkVision LS2251:i5-2400
Processor cores
- ThinkCentre M90i Intel® Core™ i5 i5-650:2
- M91p + ThinkVision LS2251:4
Processor boost frequency
- ThinkCentre M90i Intel® Core™ i5 i5-650:3.46 GHz
- M91p + ThinkVision LS2251:3.4 GHz
Processor frequency
- ThinkCentre M90i Intel® Core™ i5 i5-650:3.2 GHz
- M91p + ThinkVision LS2251:3.1 GHz
Processor cache
- ThinkCentre M90i Intel® Core™ i5 i5-650:4 MB
- M91p + ThinkVision LS2251:6 MB
System bus rate
- ThinkCentre M90i Intel® Core™ i5 i5-650:2.5 GT/s
- M91p + ThinkVision LS2251:5 GT/s
Processor codename
- ThinkCentre M90i Intel® Core™ i5 i5-650:Clarkdale
- M91p + ThinkVision LS2251:Sandy Bridge

Side by side

Differences highlightedShow differences only

Comparison of M90i, M91p + ThinkVision LS2251
153 specifications	A Lenovo ThinkCentre M90i Intel® Core™ i5 i5-650 Model M90i View product	B Lenovo M91p + ThinkVision LS2251 View product
Processor14 differ
Processor generationDiffers	Intel® Core™ i5	2nd gen Intel® Core™ i5
Processor modelDiffers	i5-650	i5-2400
Processor coresDiffers	2	4
Processor boost frequencyDiffers	3.46 GHz	3.4 GHz
Processor frequencyDiffers	3.2 GHz	3.1 GHz
Processor cacheDiffers	4 MB	6 MB
System bus rateDiffers	2.5 GT/s	5 GT/s
Processor seriesDiffers	Intel Core i5-600 Desktop Series	Intel Core i5-2400 Desktop Series
Processor codenameDiffers	Clarkdale	Sandy Bridge
Thermal Design Power (TDP)Differs	73 W	95 W
PCI Express configurationsKnown for one	1x16, 2x8	Unknown — not stated by the source
Processor socketDiffers	LGA 1156 (Socket H)	LGA 1155 (Socket H2)
Number of Processing Die TransistorsKnown for one	382 M	Unknown — not stated by the source
Processing Die sizeKnown for one	81 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Differs	24	31
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
PlatformKnown for one	PC	Unknown — not stated by the source
SteppingKnown for one	C2	Unknown — not stated by the source
Maximum internal memory supported by processorDiffers	16 GB	32 GB
Memory types supported by processorDiffers	DDR3 1066/1333	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	1066,1333 MHz
Memory2 differ
Internal memoryDiffers	3 GB	4 GB
Maximum internal memoryDiffers	8 GB	16 GB
Memory layout (slots x size)Known for one	1 x 1 + 1 x 2 GB	Unknown — not stated by the source
Storageidentical
HDD capacityKnown for one	500 GB	Unknown — not stated by the source
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Floppy drive installedKnown for one	No	Unknown — not stated by the source
RAID levelsKnown for one	0, 1	Unknown — not stated by the source
Graphics2 differ
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 2000
On-board graphics card base frequencyDiffers	733 MHz	850 MHz
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	1100 MHz
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x102
Performance1 differ
Motherboard chipsetDiffers	Intel® Q57	Intel® Q67 Express
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Networkidentical
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
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Ports & interfacesidentical
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Line-outKnown for one	Yes	Unknown — not stated by the source
Line-inKnown for one	Yes	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Expansion slotsidentical
Number of 3.5" baysKnown for one	2	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
PCI slotsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supply typeKnown for one	AC/DC	Unknown — not stated by the source
Power supplyDiffers	240 W	280 W
Design1 differ
Chassis typeDiffers	SFF	Tower
Number of 5.25" baysKnown for one	1	Unknown — not stated by the source
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
External drive baysKnown for one	1 x 5.25", 1 x 3.5"	Unknown — not stated by the source
Internal drive baysKnown for one	1 x 3.5"	Unknown — not stated by the source
Software1 differ
Operating system architectureDiffers	32-bit	64-bit
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	55.9 cm (22")
Display resolutionKnown for one	Unknown — not stated by the source	1680 x 1050 pixels
Contrast ratio (typical)Known for one	Unknown — not stated by the source	1000:1
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	170°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	160°
Processor special features11 differ
Embedded options availableDiffers	No	Yes
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Physical Address Extension (PAE)Known for one	36 bit	Unknown — not stated by the source
Processor ARK IDDiffers	43546	52207
Supported instruction setsDiffers	SSE4.2	AVX
Thermal Monitoring TechnologiesDiffers	No	Yes
Intel® Turbo Boost TechnologyDiffers	1.0	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Audio1 differ
Audio systemDiffers	HD	High Definition Audio
Weight & dimensions3 differ
WidthDiffers	317 mm	175 mm
DepthDiffers	355 mm	442 mm
HeightDiffers	99 mm	414 mm
WeightKnown for one	Unknown — not stated by the source	11 kg
Certificatesidentical
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Other featuresidentical
Security featuresKnown for one	TPM 1.2	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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