Product comparison · 2 laptops

Lenovo L420 + Mini Dock Series 3 (EMEA) vs Lenovo L520 + ThinkPad Port Replicator Series 3

124specifications compared
11differ
113identical
28known for one product only

Key differences

Display diagonal
- L420 + Mini Dock Series 3 (EMEA):35.6 cm (14")
- L520 + ThinkPad Port Replicator Series 3:39.6 cm (15.6")
Display resolution
- L420 + Mini Dock Series 3 (EMEA):1366 x 768 pixels
- L520 + ThinkPad Port Replicator Series 3:1600 x 900 pixels
Optical drive type
- L420 + Mini Dock Series 3 (EMEA):DVD-RW
- L520 + ThinkPad Port Replicator Series 3:DVD±RW
Audio system
- L420 + Mini Dock Series 3 (EMEA):HD
- L520 + ThinkPad Port Replicator Series 3:High Definition Audio
Bluetooth
- L420 + Mini Dock Series 3 (EMEA):No
- L520 + ThinkPad Port Replicator Series 3:Yes
eSATA/USB 2.0 ports quantity
- L420 + Mini Dock Series 3 (EMEA):0
- L520 + ThinkPad Port Replicator Series 3:1
Docking connector
- L420 + Mini Dock Series 3 (EMEA):No
- L520 + ThinkPad Port Replicator Series 3:Yes
Battery life (max)
- L420 + Mini Dock Series 3 (EMEA):11.6 h
- L520 + ThinkPad Port Replicator Series 3:6.6 h

Side by side

Differences highlightedShow differences only

Comparison of L420 + Mini Dock Series 3 (EMEA), L520 + ThinkPad Port Replicator Series 3
152 specifications	A Lenovo L420 + Mini Dock Series 3 (EMEA)View product	B Lenovo L520 + ThinkPad Port Replicator Series 3 View product
Display2 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolutionDiffers	1366 x 768 pixels	1600 x 900 pixels
HD typeKnown for one	Unknown — not stated by the source	HD+
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightnessKnown for one	Unknown — not stated by the source	220 cd/m²
Contrast ratio (typical)Known for one	Unknown — not stated by the source	500:1
Processoridentical
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generation	2nd gen Intel® Core™ i5	2nd gen Intel® Core™ i5
Processor model	i5-2450M	i5-2450M
Processor cores	2	2
Processor threads	4	4
Processor boost frequency	3.1 GHz	3.1 GHz
Processor frequency	2.5 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 lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor series	Intel Core i5-2400 Mobile Series	Intel Core i5-2400 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)	25	25
ECC supported by processor	No	No
Memoryidentical
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speed	1333 MHz	1333 MHz
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	8 GB	8 GB
Storage1 differ
Total storage capacity	500 GB	500 GB
Storage media	HDD	HDD
Number of HDDs installed	1	1
HDD capacityKnown for one	Unknown — not stated by the source	500 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Optical drive typeDiffers	DVD-RW	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	Unknown — not stated by the source	MMC, SD, SDHC, SDXC
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
Graphics card family	Intel	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)	1300 MHz	1300 MHz
On-board graphics card ID	0x116	0x116
Audio1 differ
Audio systemDiffers	HD	High Definition Audio
Number of built-in speakersKnown for one	Unknown — not stated by the source	2
Speaker powerKnown for one	Unknown — not stated by the source	1.5 W
Built-in microphoneKnown for one	Unknown — not stated by the source	Yes
Network1 differ
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesKnown for one	Unknown — not stated by the source	10,100,1000 Mbit/s
BluetoothDiffers	No	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	3.0+HS
Integrated 4G WiMAX	Yes	Yes
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Ports & interfaces2 differ
USB 2.0 ports quantity	3	3
eSATA/USB 2.0 ports quantityDiffers	0	1
Ethernet LAN (RJ-45) ports	1	1
DisplayPorts quantity	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Headphone outputs	1	1
S/PDIF out port	No	No
Microphone in	Yes	Yes
Docking connectorDiffers	No	Yes
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantity	0	0
CardBus PCMCIA slot type	No	No
SmartCard slot	No	No
TV-out	No	No
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	3	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	1	Unknown — not stated by the source
HDMI ports quantityKnown for one	0	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
USB 1.1 ports quantityKnown for one	0	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® HM65 Express
Keyboardidentical
Pointing deviceKnown for one	Unknown — not stated by the source	ThinkPad UltraNav
Numeric keypad	No	No
Keyboard layoutKnown for one	Unknown — not stated by the source	QWERTY
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special featuresidentical
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 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)	Yes	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™	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK ID	53452	53452
Processor code	SR04Z	SR04Z
Processor package size	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	No	No
Battery1 differ
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cellsKnown for one	Unknown — not stated by the source	6
Battery life (max)Differs	11.6 h	6.6 h
Poweridentical
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
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 & dimensions3 differ
WeightDiffers	2.3 kg	2.61 kg
WidthDiffers	3439 mm	380 mm
DepthDiffers	2329 mm	247 mm
Height (front)	3.2 cm	3.2 cm
Height (rear)	3.6 cm	3.6 cm
Other featuresidentical
Infrared data port	No	No
Intel segment tagging	Home office, Small Business	Home office, Small Business
Supplied AC adapter typeKnown for one	AC	Unknown — not stated by the source
Designidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Packaging contentidentical
AC adapter includedKnown for one	Yes	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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