Lenovo ThinkPad T400 vs Lenovo ThinkPad T61

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ThinkPad T400 compared with ThinkPad T61

	LenovoThinkPad T400	LenovoThinkPad T61
Overview
Released
Released	August 2008	May 2007
Display
Screen size
Screen size	14.1″	14.1″
Resolution
Resolution	1280 × 800	1440 × 900 (better)
Brightness
Brightness	185 nits	200 nits (better)
Touchscreen
Touchscreen	No	No
Display type
Display type	14.1-inch WXGA or WXGA+ LCD; CCFL and LED options; listed configurations use the 185-nit WXGA CCFL panel	Represented 14.1-inch widescreen NVIDIA models: 1440 × 900 LCD, 200 nits, 300:1 contrast and 16:10 aspect ratio. Other T61 chassis and screen configurations are not represented here.
Screen finish
Screen finish	Anti-glare	Anti-glare
Performance
Processor
Processor	Intel Core 2 Duo P8400 or Intel Core 2 Duo P8600	Intel Core 2 Duo T7300
CPU cores
CPU cores	2	2
Graphics
Graphics	Intel Graphics Media Accelerator 4500MHD	NVIDIA Quadro NVS 140M
Memory
Memory	2 GB	1 GB or 2 GB
Storage
Storage	128 GB to 160 GB	120 GB to 160 GB
CPU
CPU	Intel Core 2 Duo with 1066 MHz front-side bus; listed configurations are factory 7417-T1U and 7417-PAU	Represented May 2007 US models: Intel Core 2 Duo T7300, 2 GHz, 800 MHz bus and 4 MB shared L2 cache; Mobile Intel PM965 chipset
GPU
GPU	Intel GMA 4500MHD in the GM45 chipset on listed configurations; optional ATI Mobility Radeon HD 3470 with switchable graphics on other models	NVIDIA Quadro NVS 140M with 128 MB dedicated memory and TurboCache; integrated Intel GMA X3100 is offered in separate T61 configurations
Memory type
Memory type	DDR3-1066 PC3-8500; two SO-DIMM sockets, up to 8 GB	PC2-5300 DDR2-667; two 200-pin SO-DIMM sockets; maker maximum 4 GB
Storage type
Storage type	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	Removable 2.5-inch SATA 1.5 Gb/s hard drive; 5400 rpm on represented models; Active Protection System and shock-mounted drive
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	Up to 6.5 hours	Up to 3.8 hours
Weight
Weight	2.3 kg (better)	2.4 kg
Thickness
Thickness	32 mm	31.9 mm (better)
Width × depth
Width × depth	335.5 × 270 mm	335 × 261 mm
Battery life detail
Battery life detail	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	Six-cell lithium-ion battery: maker claim up to 3.8 hours on NVIDIA models, or up to 5.3 hours with additional Ultrabay battery. Listed 2.4 kg starting weight and 261 mm depth include the six-cell battery; thickness ranges from 27.6 to 31.9 mm. Integrated-graphics and four-cell models have different figures.
Charger
Charger	65 W adapter with integrated graphics; 90 W for discrete graphics	90 W AC adaptor for NVIDIA graphics models
Materials
Materials	Super-Elastic PolyCarbonate lid, carbon-fibre reinforced plastic bottom and magnesium roll cages	Super-Elastic PolyCarbonate display cover; carbon-fibre reinforced plastic bottom; magnesium base and display roll cages
Colours
Colours	Black	Black
Connections
Ports
Ports	3 × USB-A, Ethernet, headphone jack	3 × USB-A, Ethernet, headphone jack
Wi-Fi
Wi-Fi	802.11a/b/g/n; optional WiMAX	Intel Wireless WiFi Link 4965AGN, 802.11a/b/g/n
Bluetooth
Bluetooth	Optional Bluetooth 2.1	Bluetooth 2.0
Webcam
Webcam	Optional 1.3-megapixel fixed-focus camera	Not fitted to represented 7664-16U/17U configurations
Operating system
Operating system	Windows	Windows
Port detail
Port detail	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	Three USB 2.0 ports, VGA, Gigabit Ethernet, RJ-11 modem, four-pin FireWire 400, separate microphone and headphone jacks, CardBus PC Card slot and ExpressCard/54; docking connector; removable Ultrabay Slim DVD burner
External displays
External displays	VGA up to 2048 × 1536 at 75 Hz; DVI pass-through via compatible optional dock	DVI pass-through requires the optional ThinkPad Advanced Mini Dock or Advanced Dock
Keyboard
Keyboard	89-key spill-resistant keyboard; ThinkLight illuminates the keys	89-key spill-resistant keyboard; ThinkVantage button; ThinkLight overhead illumination; volume and mute buttons
Trackpad
Trackpad	UltraNav touchpad and TrackPoint with separate buttons	UltraNav touchpad with TrackPoint pointing stick
Speakers
Speakers	Stereo speakers, 1 W	Stereo speakers, 1 W each
Microphones
Microphones	Digital microphone	Internal microphone
Biometrics
Biometrics	Optional swipe fingerprint reader; TPM 1.2	TPM 1.2 security chip