Product comparison · 2 laptops

Lenovo L520 + Kit vs Lenovo X121e + warranty extension

97specifications compared
24differ
73identical
62known for one product only

Key differences

Display diagonal
- L520 + Kit:39.6 cm (15.6")
- X121e + warranty extension:29.5 cm (11.6")
Display resolution
- L520 + Kit:1600 x 900 pixels
- X121e + warranty extension:1366 x 768 pixels
Processor family
- L520 + Kit:Intel® Core™ i5
- X121e + warranty extension:Intel® Core™ i3
Processor generation
- L520 + Kit:2nd gen Intel® Core™ i5
- X121e + warranty extension:2nd gen Intel® Core™ i3
Processor model
- L520 + Kit:i5-2410M
- X121e + warranty extension:i3-2357M
Processor frequency
- L520 + Kit:2.3 GHz
- X121e + warranty extension:1.3 GHz
Processor cache type
- L520 + Kit:Smart Cache
- X121e + warranty extension:L3
Thermal Design Power (TDP)
- L520 + Kit:35 W
- X121e + warranty extension:17 W

Side by side

Differences highlightedShow differences only

Comparison of L520 + Kit, X121e + warranty extension
159 specifications	A Lenovo L520 + Kit View product	B Lenovo X121e + warranty extension View product
Designidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Form factorKnown for one	Clamshell	Unknown — not stated by the source
Display2 differ
Display diagonalDiffers	39.6 cm (15.6")	29.5 cm (11.6")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
HD typeKnown for one	HD+	Unknown — not stated by the source
Display brightnessKnown for one	Unknown — not stated by the source	200 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	300:1
Processor8 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Core™ i3
Processor generationDiffers	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i3
Processor modelDiffers	i5-2410M	i3-2357M
Processor boost frequencyKnown for one	2.9 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.3 GHz	1.3 GHz
Processor cache typeDiffers	Smart Cache	L3
Processor socketKnown for one	BGA 1023	Unknown — not stated by the source
Processor seriesDiffers	Intel Core i5-2400 Mobile Series	Intel Core i3-2300 Mobile Series
FSB ParityKnown for one	No	Unknown — not stated by the source
SteppingKnown for one	J1	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	35 W	17 W
PCI Express configurationsDiffers	1x8, 1x16, 2x4, 2x8	1x16, 1x8+2x4, 2x8
CPU multiplier (bus/core ratio)Known for one	23	Unknown — not stated by the source
Memoryidentical
Memory clock speedKnown for one	1333 MHz	Unknown — not stated by the source
Memory slots (available)Known for one	1	Unknown — not stated by the source
Storage1 differ
Storage mediaKnown for one	HDD	Unknown — not stated by the source
HDD capacityKnown for one	320 GB	Unknown — not stated by the source
Optical drive typeDiffers	DVD Super Multi DL	No
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDHC, SDXC
Graphics2 differ
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card base frequencyDiffers	650 MHz	350 MHz
On-board graphics card dynamic frequency (max)Differs	1200 MHz	950 MHz
On-board graphics card IDKnown for one	0x116	Unknown — not stated by the source
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 3000
Audio1 differ
Audio systemDiffers	HD	High Definition Audio
Speaker powerKnown for one	Unknown — not stated by the source	2 W
Network2 differ
Wireless technologyKnown for one	Wi-Fi	Unknown — not stated by the source
Wi-Fi standardsDiffers	802.11a, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
BluetoothDiffers	No	Yes
Mobile network connectionKnown for one	Unknown — not stated by the source	Yes
Mobile network generationKnown for one	Unknown — not stated by the source	3G
Bluetooth versionKnown for one	Unknown — not stated by the source	3.0+HS
Ports & interfaces2 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	0	Unknown — not stated by the source
eSATA/USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
eSATA ports quantityKnown for one	0	Unknown — not stated by the source
HDMI ports quantityDiffers	0	1
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
ExpressCard slotDiffers	Yes	No
Docking connectorKnown for one	Unknown — not stated by the source	No
SmartCard slotKnown for one	Unknown — not stated by the source	Yes
Keyboardidentical
Numeric keypadKnown for one	No	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Processor special features3 differ
Intel® Wireless Display (Intel® WiDi)Known for one	Yes	Unknown — not stated by the source
Graphics & IMC lithographyKnown for one	32 nm	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	No	Unknown — not stated by the source
Intel Dual Display Capable TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Enhanced Halt StateKnown for one	Yes	Unknown — not stated by the source
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® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	No	Unknown — not stated by the source
Intel® Insider™Known for one	No	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDKnown for one	52224	Unknown — not stated by the source
Processor package sizeDiffers	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)	31 x 24 mm
Conflict-Free processorDiffers	No	Yes
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Batteryidentical
Battery technologyKnown for one	Lithium-Ion (Li-Ion)	Unknown — not stated by the source
Battery life (max)Known for one	Unknown — not stated by the source	9.3 h
Securityidentical
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Unknown — not stated by the source	IBM
Sustainabilityidentical
Sustainability certificatesKnown for one	EPEAT Gold, ENERGY STAR	Unknown — not stated by the source
Weight & dimensions3 differ
WeightDiffers	2.6 kg	1.55 kg
WidthDiffers	379.9 mm	289.6 mm
DepthDiffers	246.8 mm	208 mm
Height (front)Known for one	3.2 cm	Unknown — not stated by the source
Height (rear)Known for one	3.6 cm	Unknown — not stated by the source
HeightKnown for one	Unknown — not stated by the source	23.5 mm
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
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
Cameraidentical
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	0.3 MP

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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