Product comparison · 2 pcs/workstations

Lenovo E71 + ThinkVision L2251x vs Lenovo Edge 71 + LS1951

113specifications compared
19differ
94identical
36known for one product only

Key differences

Processor model
- E71 + ThinkVision L2251x:G840
- Edge 71 + LS1951:G850
Processor frequency
- E71 + ThinkVision L2251x:2.8 GHz
- Edge 71 + LS1951:2.9 GHz
CPU multiplier (bus/core ratio)
- E71 + ThinkVision L2251x:28
- Edge 71 + LS1951:29
Total storage capacity
- E71 + ThinkVision L2251x:320 GB
- Edge 71 + LS1951:500 GB
HDD capacity
- E71 + ThinkVision L2251x:320 GB
- Edge 71 + LS1951:500 GB
Number of 3.5" bays
- E71 + ThinkVision L2251x:1
- Edge 71 + LS1951:2
PCI Express x1 slots
- E71 + ThinkVision L2251x:1
- Edge 71 + LS1951:2
Power supply
- E71 + ThinkVision L2251x:180 W
- Edge 71 + LS1951:280 W

Side by side

Differences highlightedShow differences only

Comparison of E71 + ThinkVision L2251x, Edge 71 + LS1951
149 specifications	A Lenovo E71 + ThinkVision L2251x View product	B Lenovo Edge 71 + LS1951 View product
Processor3 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Pentium®	Intel® Pentium®
Processor modelDiffers	G840	G850
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.8 GHz	2.9 GHz
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI	DMI
System bus rate	5 GT/s	5 GT/s
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor codename	Sandy Bridge	Sandy Bridge
Thermal Design Power (TDP)	65 W	65 W
Tcase	69.1 °C	69.1 °C
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	28	29
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
PlatformKnown for one	PC	Unknown — not stated by the source
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 processor	1066,1333 MHz	1066,1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
FSB ParityKnown for one	Unknown — not stated by the source	No
Processor seriesKnown for one	Unknown — not stated by the source	Intel Pentium G800 Series for Desktop
ECC supported by processorKnown for one	Unknown — not stated by the source	No
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)	1 x 2 GB	1 x 2 GB
Memory channels	Dual-channel	Dual-channel
Storage2 differ
Total storage capacityDiffers	320 GB	500 GB
Optical drive type	DVD-RW	DVD-RW
Number of HDDs installed	1	1
HDD capacityDiffers	320 GB	500 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Card reader integratedKnown for one	No	Unknown — not stated by the source
Floppy drive installedKnown for one	No	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
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 frequency	850 MHz	850 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
Graphics card family	Intel	Intel
Performanceidentical
Product type	PC	PC
Motherboard chipset	Intel® H61	Intel® H61
Optical driveidentical
LightScribeKnown for one	No	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
Copper ethernet cabling technologyKnown for one	1000BASE-T, 1000BASE-TX, 100BASE-T, 100BASE-TX, 10BASE-T	Unknown — not stated by the source
Ethernet interface typeKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	6	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI port	Yes	Yes
PS/2 ports quantity	0	0
Firewire (IEEE 1394) ports	0	0
Serial ports quantityKnown for one	0	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Microphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
USB connector typeKnown for one	USB Type-A	Unknown — not stated by the source
DC-in jackKnown for one	Unknown — not stated by the source	Yes
Expansion slots2 differ
Number of 3.5" baysDiffers	1	2
PCI Express x1 slotsDiffers	1	2
PCI Express x16 slots	1	1
Power1 differ
Power supply typeKnown for one	AC/DC	Unknown — not stated by the source
Power supplyDiffers	180 W	280 W
Design1 differ
Chassis typeDiffers	SFF	Tower
Number of 5.25" bays	1	1
Product colour	Black	Black
External drive baysKnown for one	1 x 5.25"	Unknown — not stated by the source
Internal drive baysKnown for one	1 x 3.5"	Unknown — not stated by the source
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
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Display2 differ
Display included	Yes	Yes
Display diagonalDiffers	55.9 cm (22")	48.3 cm (19")
Display typeKnown for one	LED	Unknown — not stated by the source
Display resolutionDiffers	1680 x 1050 pixels	1440 x 900 pixels
Native aspect ratio	16:10	16:10
Contrast ratio (typical)	1000:1	1000:1
Display number of colours	16.78 million colours	16.78 million colours
TouchscreenKnown for one	No	Unknown — not stated by the source
Display brightness	250 cd/m²	250 cd/m²
Viewing angle, horizontal	170°	170°
Viewing angle, vertical	160°	160°
Display	LCD	LCD
Processor special features3 differ
CPU configuration (max)	1	1
Embedded options availableDiffers	No	Yes
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
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 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)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	53490	53491
Processor codeDiffers	SR05P	SR05Q
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction sets	SSE4.1, SSE4.2	SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® Quick Sync Video Technology	No	No
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	Yes
Audio1 differ
Audio systemDiffers	Realtek ALC662	ADI
Ergonomicsidentical
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	333 mm	160 mm
DepthDiffers	368 mm	355 mm
HeightDiffers	99 mm	392 mm
WeightDiffers	6 kg	6.5 kg
Certificatesidentical
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab

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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