Product comparison · 2 laptops

Lenovo ThinkPad Edge E520 Intel® Core™ i3 i3-2310M vs Lenovo X1 Intel® Core™ i5 i5-2520M

123specifications compared
35differ
88identical
30known for one product only

Key differences

Display diagonal
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:39.6 cm (15.6")
- X1 Intel® Core™ i5 i5-2520M:33.8 cm (13.3")
Processor family
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:Intel® Core™ i3
- X1 Intel® Core™ i5 i5-2520M:Intel® Core™ i5
Processor generation
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:2nd gen Intel® Core™ i3
- X1 Intel® Core™ i5 i5-2520M:2nd gen Intel® Core™ i5
Processor model
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:i3-2310M
- X1 Intel® Core™ i5 i5-2520M:i5-2520M
Processor frequency
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:2.1 GHz
- X1 Intel® Core™ i5 i5-2520M:2.5 GHz
Processor socket
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:BGA 1023
- X1 Intel® Core™ i5 i5-2520M:Socket 988
CPU multiplier (bus/core ratio)
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:21
- X1 Intel® Core™ i5 i5-2520M:25
Internal memory
- ThinkPad Edge E520 Intel® Core™ i3 i3-2310M:4 GB
- X1 Intel® Core™ i5 i5-2520M:8 GB

Side by side

Differences highlightedShow differences only

Comparison of E520, X1
153 specifications	A Lenovo ThinkPad Edge E520 Intel® Core™ i3 i3-2310M Model E520 View product	B Lenovo X1 Intel® Core™ i5 i5-2520M Model X1 View product
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Display1 differ
Display diagonalDiffers	39.6 cm (15.6")	33.8 cm (13.3")
Display resolution	1366 x 768 pixels	1366 x 768 pixels
Native aspect ratio	16:9	16:9
Display brightnessKnown for one	Unknown — not stated by the source	350 cd/m²
LED backlightKnown for one	Yes	Unknown — not stated by the source
Processor7 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i3	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i3	2nd gen Intel® Core™ i5
Processor modelDiffers	i3-2310M	i5-2520M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.2 GHz
Processor frequencyDiffers	2.1 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	BGA 1023	Socket 988
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i3-2300 Mobile Series	Intel Core i5-2500 Mobile Series
Processor codename	Sandy Bridge	Sandy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
Stepping	J1	J1
Thermal Design Power (TDP)	35 W	35 W
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	21	25
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	4 GB	8 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slotsDiffers	2x SO-DIMM	1x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storage3 differ
Total storage capacityDiffers	500 GB	160 GB
Number of HDDs installed	1	1
SSD capacityKnown for one	Unknown — not stated by the source	160 GB
Optical drive typeDiffers	DVD-RW	No
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO, SD, SDHC, xD	MMC, SD, SDHC, SDXC
HDD capacityKnown for one	500 GB	Unknown — not stated by the source
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Graphics1 differ
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	Unknown — not stated by the source	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 3000	Intel® HD Graphics 3000
On-board graphics card base frequency	650 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	Dolby Home Theater
Number of built-in speakers	2	2
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1.3 MP
Swivel webcamKnown for one	Unknown — not stated by the source	No
Network2 differ
Wi-Fi	Yes	Yes
Networking featuresDiffers	Gigabit Ethernet	Gigabit Ethernet, WLAN
Ethernet LAN	Yes	Yes
BluetoothDiffers	No	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	3.0+HS
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Integrated 4G WiMAX	Yes	Yes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	3	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	1
eSATA/USB 2.0 ports quantity	1	1
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantity	1	1
HDMI versionKnown for one	Unknown — not stated by the source	1.4a
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connector	No	No
ExpressCard slotDiffers	Yes	No
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
TV-out	No	No
Keyboard1 differ
Pointing deviceDiffers	Touchpad	ThinkPad UltraNav
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special features8 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	32 nm	32 nm
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	No	Yes
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	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
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® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™Differs	Yes	No
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Processor ARK IDDiffers	52220	52229
Processor codeDiffers	SR04S	SR048
Processor package sizeDiffers	37.5 x 37.5 xrPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Batteryidentical
Battery life (max)Known for one	Unknown — not stated by the source	5.2 h
Number of battery cellsKnown for one	6	Unknown — not stated by the source
Poweridentical
DC-in jack	Yes	Yes
Security1 differ
Cable lock slotDiffers	Yes	No
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
Weight & dimensions5 differ
WeightDiffers	2.4 kg	1.69 kg
WidthDiffers	375 mm	337 mm
DepthDiffers	245 mm	231 mm
Height (front)Differs	2.8 cm	1.65 cm
Height (rear)Differs	3.3 cm	2.13 cm
Packaging contentidentical
AC adapter included	Yes	Yes
Other features1 differ
Infrared data port	No	No
Power requirementsKnown for one	Unknown — not stated by the source	100 - 240V
Power supply typeDiffers	AC/DC	AC
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Intel segment taggingKnown for one	Home office, Small Business	Unknown — not stated by the source
Supplied AC adapter typeKnown for one	AC	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel QM65	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	EPEAT Gold, RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	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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