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Lenovo ThinkPad T14 Gen 6 (Intel) vs Lenovo ThinkPad T420

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

Better figure, where one is clearly better

LenovoThinkPad T14 Gen 6 (Intel)LenovoThinkPad T420
Overview
ReleasedMay 2025March 2011
Display
Screen size14″14″
Resolution1920 × 1200 or 2880 × 18001366 × 768 or 1600 × 900
PanelIPS LCD or OLED–
Refresh rate60 Hz or 120 Hz–
Brightness400 nits or 500 nits200 nits or 250 nits
TouchscreenNo or YesNo
Display typeWUXGA IPS (400-nit non-touch or on-cell touch, 500-nit low power, or 500-nit on-cell touch with ThinkPad Privacy Guard) or 2.8K OLED with add-on film touch (Core Ultra 200U and 200H only), all 16:1014-inch 1366 × 768 (200 nits) or 1600 × 900 (250 nits) LED-backlit LCD; 300:1 contrast
Colour range45% NTSC (400-nit IPS); 100% sRGB (500-nit IPS); 100% DCI-P3 (OLED)–
Screen finishAnti-glare (IPS); anti-glare, anti-reflection and anti-smudge (OLED)Anti-glare
Display featuresIPS 1,000:1 contrast (1,500:1 with Privacy Guard); OLED 100,000:1 contrast, 120 Hz VRR, DisplayHDR True Black 500 and Dolby Vision; 3M DBEF5 on the 400-nit panels; Eyesafe Certified 2.0; 85.73% screen-to-body ratio–
Performance
ProcessorIntel Core Ultra 5 225U, Intel Core Ultra 5 225H, Intel Core Ultra 5 226V, Intel Core Ultra 5 228V, Intel Core Ultra 5 235U, Intel Core Ultra 5 235H, Intel Core Ultra 5 236V, Intel Core Ultra 5 238V, Intel Core Ultra 7 255U, Intel Core Ultra 7 255H, Intel Core Ultra 7 258V, Intel Core Ultra 7 265U, Intel Core Ultra 7 265H or Intel Core Ultra 7 268VIntel Core i5-2520M
CPU cores8, 12, 14 or 162
CPU threads8, 14 or 164
GraphicsIntel Graphics, Intel Arc 130T, Intel Arc 130V, Intel Arc 140T or Intel Arc 140VIntel HD Graphics 3000 or NVIDIA NVS 4200M
AI engine (NPU)12 TOPS, 13 TOPS, 40 TOPS, 47 TOPS or 48 TOPS–
Memory16 GB, 32 GB or 64 GB4 GB
Storage512 GB to 1 TB128 GB to 500 GB
CPUCore Ultra 200V (Lunar Lake) with 4 P-cores and 4 LP E-cores; Core Ultra 200U with 2 P-cores, 8 E-cores and 2 LP E-cores; Core Ultra 200H with 4 or 6 P-cores, 8 E-cores and 2 LP E-cores; Intel vPro Enterprise on selected modelsSecond-generation Intel Core i3, i5 and i7 dual-core processors; QM67 chipset
GPUIntegrated Intel Arc Graphics 130V or 140V (200V), Intel Arc 130T or 140T (200H, with at least 16 GB dual-channel memory) or Intel Graphics (200U); shared memory, DirectX 12.2Integrated Intel HD Graphics 3000; optional NVIDIA NVS 4200M with 1 GB and Optimus
AI engineCopilot+ PC with Core Ultra 200V (NPU up to 48 TOPS); Core Ultra 200U and 200H models are AI PCs with an NPU up to 13 TOPS–
Memory typeCore Ultra 200V, LPDDR5X-8533 on the processor package, 16 or 32 GB, not upgradable; Core Ultra 200U and 200H, DDR5-5600 in two SODIMM or CSODIMM slots, up to 64 GBDDR3-1333; two SO-DIMM sockets, up to 8 GB
Storage typeOne M.2 2280 slot, PCIe 5.0 x4 with 200V and 200H processors or PCIe 4.0 x4 with 200U; NVMe SSD up to 2 TB, Opal 2.0Removable 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 30 hoursUp to 9 hours
Battery capacity57 Wh57 Wh
Weight1.38 kg2.2 kg
Thickness16.13 mm30.5 mm
Width × depth315.9 × 223.7 mm340.5 × 233 mm
Battery life detail52.5 Wh or 57 Wh Li-ion; Core Ultra 5 228V with 57 Wh, MobileMark 25 up to 18.76 hr, JEITA 3.0 up to 11.2 hr video and 33.8 hr idle, local video up to 30 hr; Core Ultra 5 225U with 52.5 Wh, local video up to 20.82 hr; Core Ultra 5 225H with 52.5 Wh, local video up to 20.2 hrMobileMark 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
Charger65 W USB-C (PD 3.0) adapter, including nano GaN and slim GaN versions; offerings vary by country65 W; 90 W on Optimus models
Fast chargingRapid Charge to 80% in 1 hour (when off, in standby or hibernating)–
MaterialsBlack models, PC with 20% carbon fibre top and bottom; grey models, aluminium top and PC with 20% carbon fibre bottomCarbon-fibre/glass-fibre hybrid display cover; carbon-fibre reinforced plastic bottom; magnesium roll cage
ColoursBlack; GreyBlack
Connections
Ports2 × Thunderbolt 4, 2 × USB-A, HDMI, Ethernet, headphone jack4 × USB-A, Ethernet, SD card slot, headphone jack
Wi-FiWi-Fi 7 or Wi-Fi 6E802.11b/g/n or 802.11a/b/g/n
Bluetooth5.4 or 5.3 (with Wi-Fi 6E)Optional Bluetooth 3.0
Webcam5MP, optional IROptional 720p
Operating systemWindowsWindows
Port detail2 × Thunderbolt 4 (USB4 40 Gbps) with USB PD 15–65 W and DisplayPort 2.1; 2 × USB-A 5 Gbps (one Always On); HDMI 2.1 up to 4K 60 Hz; Gigabit Ethernet (RJ-45); 3.5 mm headphone/mic combo jack; optional smart card reader and nano-SIM slot (4G or 5G models)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 displaysCore Ultra 200V, up to two external displays (three including the built-in); Core Ultra 200U and 200H, up to three (four in total); Thunderbolt up to 8K 60 Hz, HDMI up to 4K 60 HzUp to 2560 × 1600 at 60 Hz via DisplayPort; 2048 × 1536 at 75 Hz via VGA; Optimus variants support three independent displays
Keyboard6-row, spill-resistant, backlit or non-backlit; 1.5 mm key travel (1.35 mm on Fn row and G/H/B); Copilot key; TrackPointSeven-row spill-resistant keyboard; TrackPoint; ThinkLight overhead illumination
TrackpadMylar 3-button trackpad, 60 × 115 mmUltraNav multi-touch touchpad
SpeakersStereo 2 W × 2, Dolby Audio1 W × 2 stereo speakers
MicrophonesDual-microphone array, 360° far-field, Dolby VoiceDual-array microphone
BiometricsOptional fingerprint reader in the power button (match-on-chip); optional IR camera for Windows HelloOptional swipe fingerprint reader; TPM 1.2

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