Product comparison · 2 pcs/workstations

Lenovo M90 USFF + ThinkVision L2251p vs Lenovo M91 USFF

94specifications compared
29differ
65identical
27known for one product only

Key differences

Processor family
- M90 USFF + ThinkVision L2251p:Intel® Core™ i3
- M91 USFF:Intel® Pentium®
Processor model
- M90 USFF + ThinkVision L2251p:i3-550
- M91 USFF:G620
Processor threads
- M90 USFF + ThinkVision L2251p:4
- M91 USFF:2
Processor frequency
- M90 USFF + ThinkVision L2251p:3.2 GHz
- M91 USFF:2.6 GHz
Processor cache
- M90 USFF + ThinkVision L2251p:4 MB
- M91 USFF:3 MB
System bus rate
- M90 USFF + ThinkVision L2251p:2.5 GT/s
- M91 USFF:5 GT/s
Processor codename
- M90 USFF + ThinkVision L2251p:Clarkdale
- M91 USFF:Sandy Bridge
Thermal Design Power (TDP)
- M90 USFF + ThinkVision L2251p:73 W
- M91 USFF:65 W

Side by side

Differences highlightedShow differences only

Comparison of M90 USFF + ThinkVision L2251p, M91 USFF
121 specifications	A Lenovo M90 USFF + ThinkVision L2251p View product	B Lenovo M91 USFF View product
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Pentium®
Processor generationKnown for one	Intel® Core™ i3	Unknown — not stated by the source
Processor modelDiffers	i3-550	G620
Processor cores	2	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	3.2 GHz	2.6 GHz
Processor cacheDiffers	4 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI	DMI
FSB ParityKnown for one	No	Unknown — not stated by the source
System bus rateDiffers	2.5 GT/s	5 GT/s
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-500 Desktop Series	Intel Pentium G600 Series for Desktop
Processor codenameDiffers	Clarkdale	Sandy Bridge
Thermal Design Power (TDP)Differs	73 W	65 W
TcaseDiffers	72.6 °C	69.1 °C
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16, 2x8	Unknown — not stated by the source
PCI Express slots version	2.0	2.0
Number of processors installed	1	1
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	26
SteppingDiffers	K0	Q0
Maximum internal memory supported by processorDiffers	16 GB	32 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	1066,1333 MHz	1066 MHz
Memory bandwidth supported by processor (max)Differs	21 GB/s	17 GB/s
ECC supported by processorKnown for one	No	Unknown — not stated by the source
Memoryidentical
Internal memory	2 GB	2 GB
Maximum internal memory	8 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Known for one	1 x 2 GB	Unknown — not stated by the source
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Memory clock speed	1333 MHz	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storageidentical
Total storage capacity	320 GB	320 GB
Optical drive type	DVD-RW	DVD-RW
Number of HDDs installed	1	1
HDD capacity	320 GB	320 GB
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
Graphics1 differ
On-board graphics card	Yes	Yes
Discrete graphics card model	Not available	Not available
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics	Intel® HD Graphics
Number of displays supported (on-board graphics)	2	2
On-board graphics card base frequencyDiffers	733 MHz	850 MHz
Graphics card family	Intel	Intel
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	1100 MHz
Performance1 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® Q57	Intel® Q67 Express
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Wi-Fi	No	No
Ports & interfacesidentical
USB 2.0 ports quantity	8	8
DisplayPorts quantity	1	1
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	No	No
Power1 differ
Power supplyDiffers	130 W	150 W
Designidentical
Product colour	Black	Black
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Display1 differ
Display includedDiffers	Yes	No
Display diagonalKnown for one	55.9 cm (22")	Unknown — not stated by the source
Display resolutionKnown for one	1680 x 1050 pixels	Unknown — not stated by the source
Native aspect ratioKnown for one	16:10	Unknown — not stated by the source
Contrast ratio (typical)Known for one	1000:1	Unknown — not stated by the source
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Viewing angle, horizontalKnown for one	170°	Unknown — not stated by the source
Viewing angle, verticalKnown for one	160°	Unknown — not stated by the source
Processor special features8 differ
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	No	Unknown — not stated by the source
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory AccessDiffers	No	Yes
Intel Rapid Storage TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	No
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 Technology	No	No
Intel® Insider™	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)Known for one	Yes	Unknown — not stated by the source
Processor ARK IDDiffers	48505	53480
Processor codeDiffers	SLBUD	SR05R
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction setsDiffers	SSE4.2	SSE4.1, SSE4.2
Thermal Monitoring TechnologiesDiffers	No	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video Technology	No	No
Intel® My WiFi Technology (Intel® MWT)Known for one	No	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
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Weight & dimensions1 differ
WidthDiffers	278 mm	275 mm
Depth	238 mm	238 mm
Height	79 mm	79 mm
Weight	4.2 kg	4.2 kg
Other featuresidentical
Intel segment tagging	Enterprise, Professional	Enterprise, 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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