Product comparison · 2 laptops

Lenovo T420 + ThinkPad Mini Dock Series 3 vs Lenovo ThinkPad X220 Tablet + ThinkPad Battery 19+

108specifications compared
24differ
84identical
39known for one product only

Key differences

Display diagonal
- T420 + ThinkPad Mini Dock Series 3:35.6 cm (14")
- ThinkPad X220 Tablet + ThinkPad Battery 19+:31.8 cm (12.5")
Display brightness
- T420 + ThinkPad Mini Dock Series 3:200 cd/m²
- ThinkPad X220 Tablet + ThinkPad Battery 19+:300 cd/m²
Contrast ratio (typical)
- T420 + ThinkPad Mini Dock Series 3:300:1
- ThinkPad X220 Tablet + ThinkPad Battery 19+:500:1
Processor model
- T420 + ThinkPad Mini Dock Series 3:i5-2410M
- ThinkPad X220 Tablet + ThinkPad Battery 19+:i5-2520M
Processor boost frequency
- T420 + ThinkPad Mini Dock Series 3:2.9 GHz
- ThinkPad X220 Tablet + ThinkPad Battery 19+:3.2 GHz
Processor frequency
- T420 + ThinkPad Mini Dock Series 3:2.3 GHz
- ThinkPad X220 Tablet + ThinkPad Battery 19+:2.5 GHz
Processor socket
- T420 + ThinkPad Mini Dock Series 3:BGA 1023
- ThinkPad X220 Tablet + ThinkPad Battery 19+:Socket 988
PCI Express configurations
- T420 + ThinkPad Mini Dock Series 3:1x8, 1x16, 2x4, 2x8
- ThinkPad X220 Tablet + ThinkPad Battery 19+:1x16, 2x8, 1x8+2x4

Side by side

Differences highlightedShow differences only

Comparison of T420 + ThinkPad Mini Dock Series 3, ThinkPad X220 Tablet + ThinkPad Battery 19+
147 specifications	A Lenovo T420 + ThinkPad Mini Dock Series 3 View product	B Lenovo ThinkPad X220 Tablet + ThinkPad Battery 19+View product
Display3 differ
Display diagonalDiffers	35.6 cm (14")	31.8 cm (12.5")
Display brightnessDiffers	200 cd/m²	300 cd/m²
Contrast ratio (typical)Differs	300:1	500:1
TouchscreenKnown for one	Unknown — not stated by the source	Yes
Processor7 differ
Processor modelDiffers	i5-2410M	i5-2520M
Processor boost frequencyDiffers	2.9 GHz	3.2 GHz
Processor frequencyDiffers	2.3 GHz	2.5 GHz
Processor socketDiffers	BGA 1023	Socket 988
Processor seriesDiffers	Intel Core i5-2400 Mobile Series	Intel Core i5-2500 Mobile Series
PCI Express configurationsDiffers	1x8, 1x16, 2x4, 2x8	1x16, 2x8, 1x8+2x4
CPU multiplier (bus/core ratio)Differs	23	25
Memoryidentical
Internal memory typeKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory layout (slots x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Storageidentical
Total storage capacityKnown for one	320 GB	Unknown — not stated by the source
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Optical drive typeKnown for one	DVD-RW	Unknown — not stated by the source
SSD capacityKnown for one	Unknown — not stated by the source	160 GB
Graphics1 differ
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Intel® HD Graphics 3000	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Differs	1200 MHz	1300 MHz
Graphics cardKnown for one	Unknown — not stated by the source	HD Graphics 3000
Audioidentical
Speaker powerKnown for one	1 W	Unknown — not stated by the source
Built-in microphoneKnown for one	Unknown — not stated by the source	Yes
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Bluetooth versionKnown for one	Unknown — not stated by the source	3.0+HS
Ports & interfaces1 differ
eSATA/USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
S/PDIF out portKnown for one	No	Unknown — not stated by the source
Docking connectorDiffers	Yes	No
CardBus PCMCIA slots quantityKnown for one	0	Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	Yes	Unknown — not stated by the source
Modem (RJ-11) portsKnown for one	1	Unknown — not stated by the source
TV-outKnown for one	No	Unknown — not stated by the source
Performanceidentical
Motherboard chipsetKnown for one	Intel® QM67 Express	Unknown — not stated by the source
GPS (satellite)Known for one	Unknown — not stated by the source	No
Keyboardidentical
Pointing deviceKnown for one	ThinkPad UltraNav	Unknown — not stated by the source
Processor special features5 differ
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Processor ARK IDDiffers	52224	52229
Processor package sizeDiffers	37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
CPU configuration (max)Known for one	Unknown — not stated by the source	1
Processor codeKnown for one	Unknown — not stated by the source	SR048
Battery1 differ
Battery life (max)Differs	9 h	8.8 h
Battery technologyKnown for one	Unknown — not stated by the source	Lithium-Ion (Li-Ion)
Security1 differ
Cable lock slot typeDiffers	IBM	Kensington
Trusted Platform Module (TPM)Known for one	Unknown — not stated by the source	Yes
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions5 differ
WeightDiffers	2.17 kg	1.8 kg
WidthDiffers	340.5 mm	305 mm
DepthDiffers	233 mm	228.7 mm
Height (front)Differs	3.01 cm	2.7 cm
Height (rear)Differs	3.05 cm	3.13 cm
Other featuresidentical
Infrared data portKnown for one	No	Unknown — not stated by the source
Internal modemKnown for one	Yes	Unknown — not stated by the source
Modem speedKnown for one	56 Kbit/s	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
Designidentical
Product typeKnown for one	Unknown — not stated by the source	Hybrid (2-in-1)
Form factorKnown for one	Unknown — not stated by the source	Convertible (Swivel)

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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