Product comparison · 2 laptops

Lenovo ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop vs Lenovo Z400 Touch

124specifications compared
42differ
82identical
48known for one product only

Key differences

Display resolution
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:1600 x 900 pixels
- Z400 Touch:1366 x 768 pixels
Touchscreen
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:No
- Z400 Touch:Yes
HD type
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:HD+
- Z400 Touch:HD
Processor family
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:Intel® Core™ i7
- Z400 Touch:Intel® Core™ i3
Processor generation
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:3rd gen Intel® Core™ i7
- Z400 Touch:3rd gen Intel® Core™ i3
Processor model
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:i7-3687U
- Z400 Touch:i3-3120M
Processor frequency
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:2.1 GHz
- Z400 Touch:2.5 GHz
Processor cache
- ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop:4 MB
- Z400 Touch:3 MB

Side by side

Differences highlightedShow differences only

Comparison of T431s, Z400 Touch
172 specifications	A Lenovo ThinkPad T431s Intel® Core™ i7 i7-3687U Laptop Model T431s View product	B Lenovo Z400 Touch View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Display3 differ
Display diagonal	35.6 cm (14")	35.6 cm (14")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
TouchscreenDiffers	No	Yes
HD typeDiffers	HD+	HD
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Display brightnessKnown for one	270 cd/m²	Unknown — not stated by the source
Touch technologyKnown for one	Unknown — not stated by the source	Multi-touch
Display surfaceKnown for one	Unknown — not stated by the source	Gloss
Dual-screenKnown for one	Unknown — not stated by the source	No
Processor9 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i3
Processor generationDiffers	3rd gen Intel® Core™ i7	3rd gen Intel® Core™ i3
Processor modelDiffers	i7-3687U	i3-3120M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyKnown for one	3.3 GHz	Unknown — not stated by the source
Processor frequencyDiffers	2.1 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cacheDiffers	4 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketKnown for one	BGA 1023	Unknown — not stated by the source
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-3600 Mobile series	Intel Core i3-3100 Mobile Series
Processor codename	Ivy Bridge	Ivy Bridge
Bus type	DMI	DMI
FSB Parity	No	No
SteppingKnown for one	L1	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	17 W	35 W
Tjunction	105 °C	105 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurationsDiffers	1x8, 1x16, 2x4, 2x8	1x16, 2x8, 1x8+2x4
PCI Express slots version	2.0	2.0
CPU multiplier (bus/core ratio)Differs	21	25
ECC supported by processor	No	No
Memory2 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory form factorKnown for one	On-board + SO-DIMM	Unknown — not stated by the source
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memoryDiffers	12 GB	16 GB
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
Storage4 differ
Total storage capacityDiffers	240 GB	500 GB
Storage mediaDiffers	SSD	HDD
Number of SSDs installedKnown for one	1	Unknown — not stated by the source
SSD capacityKnown for one	240 GB	Unknown — not stated by the source
SSD interfaceKnown for one	SATA III	Unknown — not stated by the source
Optical drive typeDiffers	No	DVD±RW
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	MMC, SD, SDHC, SDXC	MMC, SD
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD capacityKnown for one	Unknown — not stated by the source	500 GB
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
Graphics2 differ
On-board graphics card	Yes	Yes
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card model	Intel® HD Graphics 4000	Intel® HD Graphics 4000
On-board graphics card base frequencyDiffers	350 MHz	650 MHz
On-board graphics card dynamic frequency (max)Differs	1200 MHz	1100 MHz
On-board graphics card ID	0x166	0x166
Audio1 differ
Audio systemDiffers	DHTv4	Dolby Home Theatre v4
Number of built-in speakers	2	2
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Cameraidentical
Front cameraKnown for one	Yes	Unknown — not stated by the source
Front camera resolution (numeric)Known for one	Unknown — not stated by the source	1 MP
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Network2 differ
Wi-Fi	Yes	Yes
Wi-Fi standardsDiffers	802.11a, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesDiffers	10,100,1000 Mbit/s	10,100 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Integrated 4G WiMAX	Yes	Yes
Cabling technologyKnown for one	Unknown — not stated by the source	10/100Base-T(X)
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers	0	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	1
eSATA/USB 2.0 ports quantity	0	0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity	0	0
eSATA ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	0	1
DisplayPorts quantity	0	0
Mini DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
Thunderbolt ports quantity	0	0
Headphone outputsDiffers	0	1
S/PDIF out port	No	No
Combo headphone/mic port	Yes	Yes
Microphone inDiffers	No	Yes
Docking connectorKnown for one	No	Unknown — not stated by the source
ExpressCard slotKnown for one	No	Unknown — not stated by the source
CardBus PCMCIA slots quantityKnown for one	0	Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for one	No	Unknown — not stated by the source
Keyboardidentical
Pointing device	Touchpad	Touchpad
Numeric keypad	No	No
Windows keysKnown for one	Unknown — not stated by the source	Yes
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 8
Operating system architecture	64-bit	64-bit
Recovery operating systemKnown for one	Windows 8 Pro	Unknown — not stated by the source
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Processor special features7 differ
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithography	22 nm	22 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Smart Connect TechnologyKnown for one	No	Unknown — not stated by the source
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Active Management Technology (Intel® AMT)Known for one	No	Unknown — not stated by the source
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	No	Yes
Intel® High Definition Audio (Intel® HD Audio)Known for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® Matrix Storage Technology (Intel® MST)Known for one	No	Unknown — not stated by the source
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Rapid Start TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Secure KeyKnown for one	Yes	Unknown — not stated by the source
Intel® Smart Cache	Yes	Yes
Intel® Smart Response TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	2.0	No
Processor ARK IDDiffers	71258	71465
Processor codeKnown for one	SR0XH	Unknown — not stated by the source
Processor package sizeDiffers	31.0 x 24.0 (BGA1023)	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction sets	AVX	AVX
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	No
Battery1 differ
Battery technologyKnown for one	Lithium Polymer (LiPo)	Unknown — not stated by the source
Number of battery cellsKnown for one	3	Unknown — not stated by the source
Battery life (max)Differs	9 h	5 h
Poweridentical
DC-in jack	Yes	Yes
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Security1 differ
Cable lock slotDiffers	No	Yes
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Weight & dimensions4 differ
WeightDiffers	1.63 kg	2.4 kg
WidthDiffers	334 mm	345 mm
DepthDiffers	226 mm	244 mm
HeightDiffers	20.6 mm	29.1 mm
Packaging contentidentical
AC adapter included	Yes	Yes
Cables includedKnown for one	AC	Unknown — not stated by the source
Manual	Yes	Yes
Quick start guide	Yes	Yes
Remote control includedKnown for one	Unknown — not stated by the source	No
Other featuresidentical
Intel segment taggingKnown for one	Home office, Small Business	Unknown — not stated by the source
TV tuner integratedKnown for one	Unknown — not stated by the source	No
64-bit computingKnown for one	Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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