Product comparison · 2 laptops

Lenovo T420 + 433610W vs Lenovo T520 + 433610W

118specifications compared
13differ
105identical
27known for one product only

Key differences

Display diagonal
- T420 + 433610W:35.6 cm (14")
- T520 + 433610W:39.6 cm (15.6")
Bluetooth
- T420 + 433610W:No
- T520 + 433610W:Yes
USB 2.0 ports quantity
- T420 + 433610W:3
- T520 + 433610W:4
eSATA/USB 2.0 ports quantity
- T420 + 433610W:1
- T520 + 433610W:0
Microphone in
- T420 + 433610W:Yes
- T520 + 433610W:No
SmartCard slot
- T420 + 433610W:Yes
- T520 + 433610W:No
Pointing device
- T420 + 433610W:ThinkPad UltraNav
- T520 + 433610W:Touchpad
Cable lock slot type
- T420 + 433610W:IBM
- T520 + 433610W:Kensington

Side by side

Differences highlightedShow differences only

Comparison of T420 + 433610W, T520 + 433610W
145 specifications	A Lenovo T420 + 433610W View product	B Lenovo T520 + 433610W View product
Display1 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Contrast ratio (typical)Known for one	300:1	Unknown — not stated by the source
Memoryidentical
Memory clock speedKnown for one	1333 MHz	Unknown — not stated by the source
Storageidentical
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Card reader integratedKnown for one	Yes	Unknown — not stated by the source
Compatible memory cardsKnown for one	MMC, SD, SDHC, SDXC	Unknown — not stated by the source
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
Graphicsidentical
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Intel® HD Graphics	Unknown — not stated by the source
Graphics card familyKnown for one	Intel	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	High Definition Audio	Unknown — not stated by the source
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Speaker powerKnown for one	1 W	Unknown — not stated by the source
Network1 differ
BluetoothDiffers	No	Yes
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	3	4
eSATA/USB 2.0 ports quantityDiffers	1	0
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
Microphone inDiffers	Yes	No
SmartCard slotDiffers	Yes	No
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	0
eSATA ports quantityKnown for one	Unknown — not stated by the source	0
HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	0
Thunderbolt ports quantityKnown for one	Unknown — not stated by the source	0
Keyboard1 differ
Pointing deviceDiffers	ThinkPad UltraNav	Touchpad
Batteryidentical
Number of battery cellsKnown for one	6	Unknown — not stated by the source
Battery life (max)Known for one	9 h	Unknown — not stated by the source
Security1 differ
Cable lock slot typeDiffers	IBM	Kensington
Weight & dimensions5 differ
WeightDiffers	2.2 kg	2.52 kg
WidthDiffers	340.5 mm	373 mm
DepthDiffers	233 mm	245 mm
Height (front)Differs	3.01 cm	3.18 cm
Height (rear)Differs	3.05 cm	3.56 cm
Other featuresidentical
Power supply typeKnown for one	Unknown — not stated by the source	AC - DC
Supplied AC adapter typeKnown for one	Unknown — not stated by the source	AC
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Packaging contentidentical
AC adapter includedKnown for one	Unknown — not stated by the source	Yes

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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