IBM ThinkPad T42 vs Lenovo ThinkPad T61

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

Only show differences

Better figure, where one is clearly better

Share comparison

ThinkPad T42 compared with ThinkPad T61

	IBMThinkPad T42	LenovoThinkPad T61
Overview
Released
Released	May 2004	May 2007
Display
Screen size
Screen size	14.1″	14.1″
Resolution
Resolution	1400 × 1050 (better)	1440 × 900
Brightness
Brightness	150 nits	200 nits (better)
Touchscreen
Touchscreen	No	No
Display type
Display type	Listed US 2373-3UU has 14.1-inch active-matrix TFT SXGA+ LCD, 150 nits; native refresh and panel subtype unpublished. Other original models offered 14.1-inch XGA, or a separate 15-inch chassis	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
Performance
Processor
Processor	Intel Pentium M 735	Intel Core 2 Duo T7300
CPU cores
CPU cores	1	2
CPU threads
CPU threads	1	–
Graphics
Graphics	ATI Mobility Radeon 9600	NVIDIA Quadro NVS 140M
Memory
Memory	512 MB	1 GB or 2 GB (better)
Storage
Storage	40 GB	120 GB to 160 GB (better)
CPU
CPU	Listed Pentium M 735 at 1.7 GHz, 400 MHz system bus and 2 MB on-die ECC L2 cache; other original configurations used Pentium M 745 at 1.8 GHz	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	Listed ATI Mobility Radeon 9600, AGP 4X with 64 MB DDR graphics memory; XGA configurations instead offered Radeon 7500 with 32 MB	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	Listed 512 MB PC2700 DDR-333 CL2.5 in one socket; two 200-pin SO-DIMM sockets and 2 GB maker maximum	PC2-5300 DDR2-667; two 200-pin SO-DIMM sockets; maker maximum 4 GB
Storage type
Storage type	Listed 40 GB 5400 rpm Enhanced IDE removable hard drive, 9.5 mm high, with Active Protection System; DVD-ROM/CD-RW combo in removable 9.5 mm Ultrabay Slim. Other configurations had DVD-ROM, DVD writer or 80 GB disk	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 4.6 hours	Up to 3.8 hours
Weight
Weight	2.3 kg (better)	2.4 kg
Thickness
Thickness	31.4 mm (better)	31.9 mm
Width × depth
Width × depth	311 × 255 mm	335 × 261 mm
Battery life detail
Battery life detail	Six-cell lithium-ion battery, maker maximum 4.6 hours; optional nine-cell up to 7.5 hours, or nine-cell plus Ultrabay Slim battery up to 9.5 hours. Headline 2.3 kg is SXGA+ model weight including optical drive and battery; XGA models are 2.2 kg. Height spans 26.6–31.4 mm, maximum listed	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	Universal 72 W AC adapter	90 W AC adaptor for NVIDIA graphics models
Materials
Materials	–	Super-Elastic PolyCarbonate display cover; carbon-fibre reinforced plastic bottom; magnesium base and display roll cages
Colours
Colours	Black	Black
Connections
Ports
Ports	2 × USB-A, Ethernet, headphone jack	3 × USB-A, Ethernet, headphone jack
Wi-Fi
Wi-Fi	802.11a/b/g, Atheros AR5001X+ on listed US 2373-3UU	Intel Wireless WiFi Link 4965AGN, 802.11a/b/g/n
Bluetooth
Bluetooth	Bluetooth, version unpublished in original PSREF	Bluetooth 2.0
Webcam
Webcam	No built-in webcam listed	Not fitted to represented 7664-16U/17U configurations
Operating system
Operating system	Windows	Windows
Port detail
Port detail	Two USB 2.0, Gigabit RJ-45, parallel, VGA, 4 Mbps infrared, RJ-11 modem, S-video, separate microphone/headphone jacks; two Type I/II or one Type III CardBus PC Card slots. Docking accessories optional	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	–	DVI pass-through requires the optional ThinkPad Advanced Mini Dock or Advanced Dock
Keyboard
Keyboard	87-key keyboard with Access IBM button, 19 mm pitch and 2.5 mm travel; ThinkLight keyboard illumination	89-key spill-resistant keyboard; ThinkVantage button; ThinkLight overhead illumination; volume and mute buttons
Trackpad
Trackpad	UltraNav touchpad and TrackPoint with Press-to-Select, scrolling and magnifying glass	UltraNav touchpad with TrackPoint pointing stick
Speakers
Speakers	Stereo 1 W speakers with dedicated volume and mute buttons	Stereo speakers, 1 W each
Microphones
Microphones	Internal microphone and separate microphone input	Internal microphone
Biometrics
Biometrics	IBM Embedded Security Subsystem 2.0, TCG compliant; power-on, supervisor and hard-drive passwords. Original listed May2004 configuration does not include the later fingerprint-reader revision	TPM 1.2 security chip