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Lenovo ThinkPad T420 vs Lenovo ThinkPad T430

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

LenovoThinkPad T420LenovoThinkPad T430
Overview
ReleasedMarch 2011June 2012
Display
Screen size14″14″
Resolution1366 × 768 or 1600 × 9001366 × 768 or 1600 × 900
Brightness200 nits or 250 nits200 nits or 250 nits
TouchscreenNoNo
Display type14-inch 1366 × 768 (200 nits) or 1600 × 900 (250 nits) LED-backlit LCD; 300:1 contrast14-inch 1366 × 768 (200 nits) or 1600 × 900 (250 nits) LED-backlit LCD; 300:1 contrast
Screen finishAnti-glareAnti-glare
Performance
ProcessorIntel Core i5-2520MIntel Core i5-3210M or Intel Core i7-3520M
CPU cores22
CPU threads44
GraphicsIntel HD Graphics 3000 or NVIDIA NVS 4200MIntel HD Graphics 4000 or NVIDIA NVS 5400M
Memory4 GB4 GB or 8 GB
Storage128 GB to 500 GB320 GB to 500 GB
CPUSecond-generation Intel Core i3, i5 and i7 dual-core processors; QM67 chipsetThird-generation Intel Core i5 and i7 dual-core processors; some i5-2520M models; QM77 chipset
GPUIntegrated Intel HD Graphics 3000; optional NVIDIA NVS 4200M with 1 GB and OptimusIntegrated Intel HD Graphics 4000 on Ivy Bridge processors, HD Graphics 3000 on i5-2520M; optional NVIDIA NVS 5400M with 1 GB and Optimus
Memory typeDDR3-1333; two SO-DIMM sockets, up to 8 GBDDR3-1600; two SO-DIMM sockets, up to 16 GB
Storage typeRemovable 2.5-inch SATA HDD or SSD; removable Ultrabay Enhanced DVD burner; optional second drive adapterRemovable 2.5-inch SATA HDD or SSD; removable Ultrabay Enhanced DVD burner; selected models support mSATA SSD instead of WWAN
Battery and size
Battery life (maker's claim)Up to 9 hoursUp to 9.7 hours
Battery capacity57 Wh57 Wh
Weight2.2 kg2.17 kg
Thickness30.5 mm29.9 mm
Width × depth340.5 × 233 mm340.5 × 232 mm
Battery life detailMobileMark 2007: integrated graphics, six-cell 57 Wh up to 9 hours, nine-cell 94 Wh up to 15 hours, nine-cell plus slice up to 30 hours; Optimus up to 8.8 / 14.7 / 29.5 hours; four-cell option; weight shown with six-cell batteryIntegrated graphics: six-cell 57 Wh up to 9.7 hours, nine-cell 94 Wh up to 16.2 hours, nine-cell plus 94 Wh slice up to 32.5 hours; Optimus up to 9.4 / 15.8 / 31.6 hours; weight shown with six-cell battery
Charger65 W; 90 W on Optimus models65 W on integrated graphics models; 90 W on Optimus models
MaterialsCarbon-fibre/glass-fibre hybrid display cover; carbon-fibre reinforced plastic bottom; magnesium roll cageCarbon-fibre/glass-fibre hybrid display cover; carbon-fibre reinforced plastic bottom; magnesium roll cage
ColoursBlackBlack
Connections
Ports4 × USB-A, Ethernet, SD card slot, headphone jack4 × USB-A, Ethernet, SD card slot, headphone jack
Wi-Fi802.11b/g/n or 802.11a/b/g/n802.11b/g/n or 802.11a/b/g/n
BluetoothOptional Bluetooth 3.0Optional Bluetooth 4.0
WebcamOptional 720pOptional 720p
Operating systemWindowsWindows
Port detailThree USB 2.0 (one powered), one USB 2.0/eSATA combo, VGA, DisplayPort, Gigabit Ethernet, audio combo, 4-in-1 SD reader and ExpressCard/34; optional modem, FireWire and smart card readerTwo USB 3.0, two USB 2.0 (one powered), VGA, Mini DisplayPort, Gigabit Ethernet, audio combo, SD/MMC/SDHC/SDXC reader and ExpressCard/34; docking connector
External displaysUp to 2560 × 1600 at 60 Hz via DisplayPort; 2048 × 1536 at 75 Hz via VGA; Optimus variants support three independent displaysUp to 2560 × 1600 at 60 Hz via Mini DisplayPort; 2048 × 1536 at 75 Hz via VGA
KeyboardSeven-row spill-resistant keyboard; TrackPoint; ThinkLight overhead illuminationSix-row spill-resistant keyboard; TrackPoint; optional backlight and ThinkLight overhead illumination
TrackpadUltraNav multi-touch touchpadUltraNav multi-touch touchpad
Speakers1 W × 2 stereo speakers1 W × 2 stereo speakers
MicrophonesDual-array microphoneDual-array microphone
BiometricsOptional swipe fingerprint reader; TPM 1.2Optional swipe fingerprint reader; TPM 1.2

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