Product comparison · 2 laptops

Lenovo T420 + 45N6678 vs Lenovo ThinkPad X220 Tablet + ThinkPad Battery 19+

109specifications compared
25differ
84identical
36known for one product only

Key differences

Display diagonal
- T420 + 45N6678:35.6 cm (14")
- ThinkPad X220 Tablet + ThinkPad Battery 19+:31.8 cm (12.5")
Display resolution
- T420 + 45N6678:1600 x 900 pixels
- ThinkPad X220 Tablet + ThinkPad Battery 19+:1366 x 768 pixels
Display brightness
- T420 + 45N6678:250 cd/m²
- ThinkPad X220 Tablet + ThinkPad Battery 19+:300 cd/m²
Contrast ratio (typical)
- T420 + 45N6678:300:1
- ThinkPad X220 Tablet + ThinkPad Battery 19+:500:1
Processor family
- T420 + 45N6678:Intel® Core™ i7
- ThinkPad X220 Tablet + ThinkPad Battery 19+:Intel® Core™ i5
Processor generation
- T420 + 45N6678:2nd gen Intel® Core™ i7
- ThinkPad X220 Tablet + ThinkPad Battery 19+:2nd gen Intel® Core™ i5
Processor model
- T420 + 45N6678:i7-2620M
- ThinkPad X220 Tablet + ThinkPad Battery 19+:i5-2520M
Processor boost frequency
- T420 + 45N6678:3.4 GHz
- ThinkPad X220 Tablet + ThinkPad Battery 19+:3.2 GHz

Side by side

Differences highlightedShow differences only

Comparison of T420 + 45N6678, ThinkPad X220 Tablet + ThinkPad Battery 19+
145 specifications	A Lenovo T420 + 45N6678 View product	B Lenovo ThinkPad X220 Tablet + ThinkPad Battery 19+View product
Display4 differ
Display diagonalDiffers	35.6 cm (14")	31.8 cm (12.5")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
HD typeKnown for one	HD+	Unknown — not stated by the source
Display brightnessDiffers	250 cd/m²	300 cd/m²
Contrast ratio (typical)Differs	300:1	500:1
TouchscreenKnown for one	Unknown — not stated by the source	Yes
Processor9 differ
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor generationDiffers	2nd gen Intel® Core™ i7	2nd gen Intel® Core™ i5
Processor modelDiffers	i7-2620M	i5-2520M
Processor boost frequencyDiffers	3.4 GHz	3.2 GHz
Processor frequencyDiffers	2.7 GHz	2.5 GHz
Processor cacheDiffers	4 MB	3 MB
Processor socketDiffers	BGA 1023	Socket 988
Processor seriesDiffers	Intel Core i7-2600 Mobile Series	Intel Core i5-2500 Mobile Series
CPU multiplier (bus/core ratio)Differs	27	25
Memoryidentical
Internal memory typeKnown for one	DDR3-SDRAM	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	500 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
Graphicsidentical
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
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
Network1 differ
Mobile network connectionKnown for one	Yes	Unknown — not stated by the source
Mobile network generationKnown for one	3G	Unknown — not stated by the source
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
BluetoothDiffers	No	Yes
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
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 features3 differ
Intel® Insider™Differs	Yes	No
Processor ARK IDDiffers	52231	52229
Processor codeDiffers	SR041	SR048
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
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	2.2 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
Intel segment taggingKnown for one	Home office, Small Business	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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