Home Laptops Lenovo ThinkPad T420 Lenovo · ThinkPad T
Released March 2011
A 14-inch business laptop with second-generation Intel Core processors, a seven-row keyboard and removable batteries, for office work and older ThinkPad upgrade comparisons.
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Size 14″
Display –
Processor Intel Core i5
Memory 4 GB
Weight 2.2 kg
Battery 9 h What reviewers say Reviewers praise the comfortable keyboard, strong everyday performance and long battery life with the extended battery. Both criticise the lack of USB 3.0; Notebookcheck also finds the screen colour range limited, while Laptop Mag recommends the higher-resolution screen.
From laptopmag.com and notebookcheck.net
Display
Screen size 14″
Resolution 1366 × 768 or 1600 × 900
Brightness 200 nits or 250 nits
Touchscreen No
Display type 14-inch 1366 × 768 (200 nits) or 1600 × 900 (250 nits) LED-backlit LCD; 300:1 contrast
Screen finish Anti-glare
Processor Intel Core i5-2520M
CPU cores 2
CPU threads 4
Graphics Intel HD Graphics 3000 or NVIDIA NVS 4200M
Memory 4 GB
Storage 128 GB to 500 GB
CPU Second-generation Intel Core i3, i5 and i7 dual-core processors; QM67 chipset
GPU Integrated Intel HD Graphics 3000; optional NVIDIA NVS 4200M with 1 GB and Optimus
Memory type DDR3-1333; two SO-DIMM sockets, up to 8 GB
Storage type Removable 2.5-inch SATA HDD or SSD; removable Ultrabay Enhanced DVD burner; optional second drive adapter Battery and size
Battery life (maker's claim) Up to 9 hours
Battery capacity 57 Wh
Weight 2.2 kg
Thickness 30.5 mm
Width × depth 340.5 × 233 mm
Battery life detail MobileMark 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 battery
Charger 65 W; 90 W on Optimus models
Materials Carbon-fibre/glass-fibre hybrid display cover; carbon-fibre reinforced plastic bottom; magnesium roll cage
Colours Black Connections
Ports 4 × USB-A, Ethernet, SD card slot, headphone jack
Wi-Fi 802.11b/g/n or 802.11a/b/g/n
Bluetooth Optional Bluetooth 3.0
Webcam Optional 720p
Operating system Windows
Port detail Three 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 reader
External displays Up to 2560 × 1600 at 60 Hz via DisplayPort; 2048 × 1536 at 75 Hz via VGA; Optimus variants support three independent displays
Keyboard Seven-row spill-resistant keyboard; TrackPoint; ThinkLight overhead illumination
Trackpad UltraNav multi-touch touchpad
Speakers 1 W × 2 stereo speakers
Microphones Dual-array microphone
Biometrics Optional swipe fingerprint reader; TPM 1.2 Configurations Processor Memory Storage Graphics Screen Intel Core i5-2520M 4 GB 320 GB Intel HD Graphics 3000 1366 × 768 Intel Core i5-2520M 4 GB 128 GB Intel HD Graphics 3000 1366 × 768 Intel Core i5-2520M 4 GB 500 GB Intel HD Graphics 3000 1600 × 900 Intel Core i5-2520M 4 GB 320 GB NVIDIA NVS 4200M 1366 × 768
Pros and cons Pros + Seven-row spill-resistant keyboard with TrackPoint+ Two memory slots and removable 2.5-inch storage+ DisplayPort, VGA, Ethernet and four USB 2.0 connectionsCons − No built-in USB 3.0 or HDMI− Screen options stop at 1600 × 900− At least 2.20 kg with a six-cell batteryNewer model: ThinkPad T430 .
