Product comparison · 2 pcs/workstations

Lenovo Edge 71 + ThinkVision L2251x vs Lenovo M81 + ThinkVision LS2421p

113specifications compared
30differ
83identical
11known for one product only

Key differences

The Lenovo Edge 71 + ThinkVision L2251x has 2 more processor cores than the Lenovo M81 + ThinkVision LS2421p (4 vs 2). The Lenovo M81 + ThinkVision LS2421p has 0.6 GHz more processor frequency than the Lenovo Edge 71 + ThinkVision L2251x (3.1 GHz vs 2.5 GHz). The Lenovo Edge 71 + ThinkVision L2251x has 3 MB more processor cache than the Lenovo M81 + ThinkVision LS2421p (6 MB vs 3 MB). Only the Lenovo Edge 71 + ThinkVision L2251x has DVI port. Only the Lenovo Edge 71 + ThinkVision L2251x has Intel Trusted Execution Technology.

Processor family
- Edge 71 + ThinkVision L2251x:Intel® Core™ i5
- M81 + ThinkVision LS2421p:Intel® Core™ i3
Processor generation
- Edge 71 + ThinkVision L2251x:2nd gen Intel® Core™ i5
- M81 + ThinkVision LS2421p:2nd gen Intel® Core™ i3
Processor model
- Edge 71 + ThinkVision L2251x:i5-2400S
- M81 + ThinkVision LS2421p:i3-2100
Processor cores
- Edge 71 + ThinkVision L2251x:4
- M81 + ThinkVision LS2421p:2
Processor frequency
- Edge 71 + ThinkVision L2251x:2.5 GHz
- M81 + ThinkVision LS2421p:3.1 GHz
Processor cache
- Edge 71 + ThinkVision L2251x:6 MB
- M81 + ThinkVision LS2421p:3 MB
Thermal Design Power (TDP)
- Edge 71 + ThinkVision L2251x:65 W
- M81 + ThinkVision LS2421p:35, 65
Stepping
- Edge 71 + ThinkVision L2251x:D2
- M81 + ThinkVision LS2421p:Q0

Side by side

Differences highlightedShow differences only

Comparison of Edge 71 + ThinkVision L2251x, M81 + ThinkVision LS2421p
124 specifications	A Lenovo Edge 71 + ThinkVision L2251x View product	B Lenovo M81 + ThinkVision LS2421p View product
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i3
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i3
Processor modelDiffers	i5-2400S	i3-2100
Processor coresDiffers	4	2
Processor threads	4	4
Processor boost frequencyKnown for one	3.3 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.5 GHz	3.1 GHz
Processor cacheDiffers	6 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI	DMI
FSB Parity	No	No
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 i5-2400 Desktop Series	Intel Core i3-2100 Desktop Series
Processor codename	Sandy Bridge	Sandy Bridge
Thermal Design Power (TDP)Differs	65 W	35, 65
Tcase	69.1 °C	69.1 °C
Maximum number of PCI Express lanes	16	16
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)	31	31
SteppingDiffers	D2	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 processor	1066,1333 MHz	1066,1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
ECC supported by processor	No	No
Memory3 differ
Internal memoryDiffers	4 GB	2 GB
Maximum internal memoryDiffers	8 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	1 x 4 GB	1 x 2 GB
Memory slotsKnown for one	2x DIMM	Unknown — not stated by the source
Memory clock speed	1333 MHz	1333 MHz
Memory channels	Dual-channel	Dual-channel
Storage1 differ
Total storage capacityDiffers	500 GB	320 GB
Optical drive type	DVD-RW	DVD-RW
Number of HDDs installed	1	1
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
HDD capacityKnown for one	Unknown — not stated by the source	320 GB
Graphicsidentical
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 2000	Intel® HD Graphics 2000
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 ID	0x102	0x102
Graphics card family	Intel	Intel
Performance1 differ
Product type	PC	PC
Motherboard chipsetDiffers	Intel® H61	Intel® Q65 Express
Networkidentical
Ethernet LAN	Yes	Yes
Wi-Fi	No	No
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers	6	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI portDiffers	Yes	No
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Serial ports quantityKnown for one	Unknown — not stated by the source	1
Power1 differ
Power supplyDiffers	180 W	280 W
Designidentical
Chassis type	Tower	Tower
Product colour	Black	Black
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	55.9 cm (22")	59.9 cm (23.6")
Display resolutionDiffers	1680 x 1050 pixels	1920 x 1080 pixels
Native aspect ratioKnown for one	16:10	Unknown — not stated by the source
Contrast ratio (typical)	1000:1	1000:1
Display brightnessDiffers	250 cd/m²	300 cd/m²
Viewing angle, horizontal	170°	170°
Viewing angle, vertical	160°	160°
Processor special features6 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 Technology	No	No
Intel Demand Based Switching	No	No
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 version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	Yes	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)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	52208	53422
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost TechnologyDiffers	2.0	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Weight & dimensions4 differ
WidthDiffers	160 mm	175 mm
DepthDiffers	355 mm	442 mm
HeightDiffers	392 mm	414 mm
WeightDiffers	7 kg	11 kg
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	Unknown — not stated by the source
Other featuresidentical
Intel segment taggingKnown for one	Unknown — not stated by the source	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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