Lenovo ThinkPad T14s Gen 7 (Intel) vs Lenovo ThinkPad T400

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ThinkPad T14s Gen 7 (Intel) compared with ThinkPad T400

	LenovoThinkPad T14s Gen 7 (Intel)	LenovoThinkPad T400
Overview
Released
Released	April 2026	August 2008
Display
Screen size
Screen size	14″	14.1″
Resolution
Resolution	1920 × 1200 or 2880 × 1800 (better)	1280 × 800
Panel
Panel	IPS LCD or OLED	–
Refresh rate
Refresh rate	60 Hz or 120 Hz	–
Brightness
Brightness	400 nits or 500 nits (better)	185 nits
Touchscreen
Touchscreen	No or Yes	No
Display type
Display type	WUXGA IPS (non-touch, on-cell touch with Privacy Guard, or low-power in-cell touch) or 2.8K OLED (non-touch), all 16:10	14.1-inch WXGA or WXGA+ LCD; CCFL and LED options; listed configurations use the 185-nit WXGA CCFL panel
Colour range
Colour range	45% NTSC (400-nit IPS); 100% sRGB (500-nit IPS); 100% DCI-P3 (OLED)	–
Screen finish
Screen finish	Anti-glare	Anti-glare
Display features
Display features	IPS 1,000:1 or 1,500:1 contrast; OLED 100,000:1 contrast, 120 Hz VRR, DisplayHDR True Black 600 and Dolby Vision; Eyesafe Certified 2.0; 3M DBEF5 on the 400-nit panel; 88% screen-to-body ratio	–
Performance
Processor
Processor	Intel Core Ultra 5 325, Intel Core Ultra 5 335, Intel Core Ultra 7 355, Intel Core Ultra 7 356H or Intel Core Ultra 7 365	Intel Core 2 Duo P8400 or Intel Core 2 Duo P8600
CPU cores
CPU cores	8 or 16	2
CPU threads
CPU threads	8 or 16	–
Graphics
Graphics	Intel Graphics	Intel Graphics Media Accelerator 4500MHD
AI engine (NPU)
AI engine (NPU)	47 TOPS, 49 TOPS or 50 TOPS	–
Memory
Memory	16 GB or 32 GB (better)	2 GB
Storage
Storage	256 GB to 1 TB (better)	128 GB to 160 GB
CPU
CPU	Core Ultra 5 325 or 335 and Core Ultra 7 355 or 365 with 4 P-cores and 4 LP E-cores (12 MB cache); Core Ultra 7 356H with 4 P-cores, 8 E-cores and 4 LP E-cores (18 MB cache, not sold in North America); 335 and 365 support Intel vPro Enterprise	Intel Core 2 Duo with 1066 MHz front-side bus; listed configurations are factory 7417-T1U and 7417-PAU
GPU
GPU	Integrated Intel Graphics (up to 40 TOPS), shared memory, DirectX 12 Ultimate	Intel GMA 4500MHD in the GM45 chipset on listed configurations; optional ATI Mobility Radeon HD 3470 with switchable graphics on other models
AI engine
AI engine	Copilot+ PC; NPU up to 50 TOPS	–
Memory type
Memory type	LPDDR5X-8533 (runs at 7467 MT/s except with the Core Ultra 7 356H), soldered, dual-channel, not upgradable	DDR3-1066 PC3-8500; two SO-DIMM sockets, up to 8 GB
Storage type
Storage type	One M.2 2280 PCIe 5.0 x4 slot; PCIe 4.0 or PCIe 5.0 NVMe SSD up to 2 TB, Opal 2.0	Removable 2.5-inch SATA HDD or 1.8-inch SATA SSD; listed configurations have 160 GB 5400 rpm HDD and 128 GB SSD respectively; optional second disk in Ultrabay
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	Up to 34 hours	Up to 6.5 hours
Battery capacity
Battery capacity	58 Wh	–
Weight
Weight	1.065 kg (better)	2.3 kg
Thickness
Thickness	15.85 mm (better)	32 mm
Width × depth
Width × depth	313 × 219.4 mm	335.5 × 270 mm
Battery life detail
Battery life detail	58 Wh Li-ion; MobileMark 30 up to 19.1 hr, JEITA 3.0 up to 19.6 hr video and 36.2 hr idle, local video up to 34.0 hr (Core Ultra 5 325, low-power touch screen)	Four-, six- or nine-cell removable battery; six-cell up to 6.5 hours, six-cell plus Ultrabay battery up to 8 hours, nine-cell up to 9.8 hours; dimensions and starting weight shown with six-cell battery
Charger
Charger	65 W USB-C (PD 3.0) adapter, including nano and slim GaN versions; offerings vary by country	65 W adapter with integrated graphics; 90 W for discrete graphics
Fast charging
Fast charging	Rapid Charge to 80% in 1 hour with the 65 W adapter (when off, in standby or hibernating)	–
Materials
Materials	Carbon fibre hybrid top cover; aluminium or magnesium bottom cover; MIL-STD-810H tested	Super-Elastic PolyCarbonate lid, carbon-fibre reinforced plastic bottom and magnesium roll cages
Colours
Colours	Black; Cosmic Blue	Black
Connections
Ports
Ports	3 × Thunderbolt 4, USB-A, HDMI, headphone jack	3 × USB-A, Ethernet, headphone jack
Wi-Fi
Wi-Fi	Wi-Fi 7	802.11a/b/g/n; optional WiMAX
Bluetooth
Bluetooth	5.4	Optional Bluetooth 2.1
Webcam
Webcam	5MP, optional IR	Optional 1.3-megapixel fixed-focus camera
Operating system
Operating system	Windows	Windows
Port detail
Port detail	3 × Thunderbolt 4 with USB PD 15–65 W and DisplayPort 2.1; USB-A 5 Gbps (Always On); HDMI 2.1 up to 4K 60 Hz; 3.5 mm headphone/mic combo jack; optional smart card reader and nano-SIM slot (4G or 5G models)	Three USB 2.0, VGA, Gigabit Ethernet, RJ-11 modem, FireWire 400, separate microphone and headphone jacks, ExpressCard/54 and docking connector; PC Card and seven-format card reader vary by model
External displays
External displays	Up to three external displays via HDMI and Thunderbolt (four including the built-in); Thunderbolt up to 8K 60 Hz	VGA up to 2048 × 1536 at 75 Hz; DVI pass-through via compatible optional dock
Keyboard
Keyboard	6-row, spill-resistant, backlit; 1.5 mm key travel (1.35 mm on Fn row and G/H/B); Copilot key; TrackPoint	89-key spill-resistant keyboard; ThinkLight illuminates the keys
Trackpad
Trackpad	Glass-like Mylar 3-button trackpad, 60 × 115 mm	UltraNav touchpad and TrackPoint with separate buttons
Speakers
Speakers	Stereo 2 W × 2, Dolby Atmos	Stereo speakers, 1 W
Microphones
Microphones	Dual-microphone array, 360° far-field, Elevoc Voice	Digital microphone
Biometrics
Biometrics	Optional fingerprint reader in the power button (match-on-chip); optional IR camera for Windows Hello	Optional swipe fingerprint reader; TPM 1.2