Product comparison · 2 pcs/workstations

Lenovo M81 + L2440p vs Lenovo M91 + ThinkVision L2251p

98specifications compared
25differ
73identical
41known for one product only

Key differences

Processor family
- M81 + L2440p:Intel® Core™ i3
- M91 + ThinkVision L2251p:Intel® Pentium®
Processor model
- M81 + L2440p:i3-2100
- M91 + ThinkVision L2251p:G620
Processor threads
- M81 + L2440p:4
- M91 + ThinkVision L2251p:2
Processor frequency
- M81 + L2440p:3.1 GHz
- M91 + ThinkVision L2251p:2.6 GHz
Thermal Design Power (TDP)
- M81 + L2440p:35, 65
- M91 + ThinkVision L2251p:65 W
CPU multiplier (bus/core ratio)
- M81 + L2440p:31
- M91 + ThinkVision L2251p:26
Memory clock speeds supported by processor
- M81 + L2440p:1066,1333 MHz
- M91 + ThinkVision L2251p:1066 MHz
Memory bandwidth supported by processor (max)
- M81 + L2440p:21 GB/s
- M91 + ThinkVision L2251p:17 GB/s

Side by side

Differences highlightedShow differences only

Comparison of M81 + L2440p, M91 + ThinkVision L2251p
139 specifications	A Lenovo M81 + L2440p View product	B Lenovo M91 + ThinkVision L2251p View product
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Pentium®
Processor generationKnown for one	2nd gen Intel® Core™ i3	Unknown — not stated by the source
Processor modelDiffers	i3-2100	G620
Processor cores	2	2
Processor threadsDiffers	4	2
Processor frequencyDiffers	3.1 GHz	2.6 GHz
Processor cache	3 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 rate	5 GT/s	5 GT/s
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-2100 Desktop Series	Intel Pentium G600 Series for Desktop
Processor codename	Sandy Bridge	Sandy Bridge
Thermal Design Power (TDP)Differs	35, 65	65 W
Tcase	69.1 °C	69.1 °C
Maximum number of PCI Express lanesKnown for one	16	Unknown — not stated by the source
PCI Express slots version	2.0	2.0
Number of processors installed	1	1
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)Differs	31	26
Stepping	Q0	Q0
Maximum internal memory supported by processor	32 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
Memory1 differ
Internal memory	2 GB	2 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)	1 x 2 GB	1 x 2 GB
Memory slotsDiffers	4x DIMM	2x SO-DIMM
Memory clock speed	1333 MHz	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storage1 differ
Total storage capacity	320 GB	320 GB
Optical drive type	DVD-RW	DVD-RW
Number of HDDs installed	1	1
HDD interface	SATA	SATA
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Card reader integratedDiffers	Yes	No
RAID levelsKnown for one	0, 1	Unknown — not stated by the source
Graphics2 differ
On-board graphics card	Yes	Yes
Discrete graphics card modelDiffers	Intel® HD Graphics 2000	Intel® HD Graphics
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelDiffers	Intel® HD Graphics 2000	Intel® HD Graphics
Number of displays supported (on-board graphics)	2	2
On-board graphics card base frequency	850 MHz	850 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card IDKnown for one	0x102	Unknown — not stated by the source
Graphics card family	Intel	Intel
Performanceidentical
Product type	PC	PC
Motherboard chipsetKnown for one	Intel® Q65 Express	Unknown — not stated by the source
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Wi-Fi	No	No
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	8	10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-outKnown for one	Yes	Unknown — not stated by the source
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	No	No
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Firewire (IEEE 1394) ports	0	0
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Expansion slots1 differ
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
PCI slotsDiffers	2	1
Poweridentical
Power supplyKnown for one	240 W	Unknown — not stated by the source
Designidentical
Chassis typeKnown for one	SFF	Unknown — not stated by the source
Product colour	Black	Black
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Display3 differ
Display included	Yes	Yes
Display diagonalDiffers	61 cm (24")	55.9 cm (22")
Display resolutionDiffers	1920 x 1200 pixels	1680 x 1050 pixels
Contrast ratio (typical)	1000:1	1000:1
Display brightnessDiffers	300 cd/m²	250 cd/m²
Viewing angle, horizontal	170°	170°
Viewing angle, vertical	160°	160°
Processor special features7 differ
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
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 Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
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 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 TechnologyDiffers	Yes	No
Intel® Insider™Differs	Yes	No
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	53422	53480
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction setsDiffers	AVX	SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video TechnologyDiffers	Yes	No
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
Processor codeKnown for one	Unknown — not stated by the source	SR05R
Weight & dimensionsidentical
WidthKnown for one	99.7 mm	Unknown — not stated by the source
DepthKnown for one	369 mm	Unknown — not stated by the source
HeightKnown for one	337 mm	Unknown — not stated by the source
WeightKnown for one	7.5 kg	Unknown — not stated by the source
Packaging contentidentical
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Keyboard includedKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
CertificationKnown for one	Unknown — not stated by the source	RoHS
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	Unknown — not stated by the source
Other featuresidentical
Intel segment tagging	Enterprise, Professional	Enterprise, Professional
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	HD

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.

More pcs/workstations comparisons

All pcs/workstations comparisons