Product comparison · 2 laptops

Lenovo ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop vs Lenovo ThinkPad T540p

126specifications compared
46differ
80identical
47known for one product only

Key differences

Display diagonal
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:35.6 cm (14")
- ThinkPad T540p:39.6 cm (15.6")
Display resolution
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:1600 x 900 pixels
- ThinkPad T540p:1366 x 768 pixels
Touchscreen
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:Yes
- ThinkPad T540p:No
HD type
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:HD+
- ThinkPad T540p:Not supported
Processor generation
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:3rd gen Intel® Core™ i5
- ThinkPad T540p:4th gen Intel® Core™ i5
Processor model
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:i5-3337U
- ThinkPad T540p:i5-4200M
Processor boost frequency
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:2.7 GHz
- ThinkPad T540p:3.1 GHz
Processor frequency
- ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop:1.8 GHz
- ThinkPad T540p:2.5 GHz

Side by side

Differences highlightedShow differences only

Comparison of S431, ThinkPad T540p
173 specifications	A Lenovo ThinkPad S431 Intel® Core™ i5 i5-3337U Laptop Model S431 View product	B Lenovo ThinkPad T540p View product
Designidentical
Product type	Laptop	Laptop
Product colour	Black	Black
Form factor	Clamshell	Clamshell
Display4 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolutionDiffers	1600 x 900 pixels	1366 x 768 pixels
TouchscreenDiffers	Yes	No
HD typeDiffers	HD+	Not supported
Touch technologyKnown for one	Multi-touch	Unknown — not stated by the source
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Processor11 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generationDiffers	3rd gen Intel® Core™ i5	4th gen Intel® Core™ i5
Processor modelDiffers	i5-3337U	i5-4200M
Processor cores	2	2
Processor threads	4	4
Processor boost frequencyDiffers	2.7 GHz	3.1 GHz
Processor frequencyDiffers	1.8 GHz	2.5 GHz
System bus rate	5 GT/s	5 GT/s
Processor cache	3 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socketDiffers	BGA 1023	PGA946
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i5-3300 Mobile series	Intel Core i5-4200 Mobile series
Processor codenameDiffers	Ivy Bridge	Haswell
Bus type	DMI	DMI
FSB Parity	No	No
SteppingDiffers	L1	C0
Thermal Design Power (TDP)Differs	17 W	37 W
TjunctionDiffers	105 °C	100 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots versionDiffers	2.0	3.0
CPU multiplier (bus/core ratio)Known for one	18	Unknown — not stated by the source
ECC supported by processor	No	No
Memory1 differ
Internal memory	4 GB	4 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory clock speedKnown for one	1600 MHz	Unknown — not stated by the source
Memory layout (slots x size)Known for one	1 x 4 GB	Unknown — not stated by the source
Memory slotsKnown for one	1x SO-DIMM	Unknown — not stated by the source
Maximum internal memoryDiffers	8 GB	16 GB
Storage2 differ
Total storage capacity	500 GB	500 GB
Storage mediaDiffers	HDD+SSD	HDD
Number of HDDs installed	1	1
HDD capacity	500 GB	500 GB
Number of SSDs installedKnown for one	1	Unknown — not stated by the source
SSD capacityKnown for one	24 GB	Unknown — not stated by the source
Optical drive typeDiffers	No	DVD Super Multi DL
Card reader integrated	Yes	Yes
Compatible memory cardsKnown for one	MMC, SD, SDHC, SDXC	Unknown — not stated by the source
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Graphics4 differ
On-board graphics card	Yes	Yes
Discrete graphics cardKnown for one	No	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 4000	Intel® HD Graphics 4600
On-board graphics card base frequencyDiffers	350 MHz	400 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1150 MHz
On-board graphics card IDDiffers	0x166	0x416
Maximum on-board graphics card memoryKnown for one	Unknown — not stated by the source	1.74 GB
On-board graphics card DirectX versionKnown for one	Unknown — not stated by the source	11.1
Audio1 differ
Audio systemDiffers	Dolby Home Theaterv	Dolby Advanced
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11a, 802.11b, 802.11g	802.11a, 802.11b, 802.11g
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.0	4.0
Integrated 4G WiMAXKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces4 differ
USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	4
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	1	0
DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
DVI port	No	No
VGA (D-Sub) ports quantityDiffers	0	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 in	No	No
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
SmartCard slotKnown for one	No	Unknown — not stated by the source
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Microphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
USB Sleep-and-Charge	Yes	Yes
USB Sleep-and-Charge ports	1	1
Mini DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Mini DisplayPort/Thunderbolt combo portKnown for one	Unknown — not stated by the source	No
Thunderbolt 2 ports quantityKnown for one	Unknown — not stated by the source	0
Mini HDMI ports quantityKnown for one	Unknown — not stated by the source	0
Micro HDMI ports quantityKnown for one	Unknown — not stated by the source	0
LAN/VGA combo portKnown for one	Unknown — not stated by the source	No
Mini VGA ports quantityKnown for one	Unknown — not stated by the source	0
Keyboard1 differ
Keyboard backlit	Yes	Yes
Numeric keypadDiffers	No	Yes
Spill-resistant keyboardKnown for one	Yes	Unknown — not stated by the source
Full-size keyboardKnown for one	Yes	Unknown — not stated by the source
Windows keysKnown for one	Yes	Unknown — not stated by the source
Pointing deviceKnown for one	Unknown — not stated by the source	ThinkPad UltraNav
Software1 differ
Operating system installedDiffers	Windows 8 Pro	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Processor special features11 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 lithographyKnown for one	22 nm	Unknown — not stated by the source
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt StateDiffers	Yes	No
Intel FDI TechnologyDiffers	Yes	No
Intel Fast Memory AccessDiffers	Yes	No
Intel Flex Memory AccessDiffers	Yes	No
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel Trusted Execution Technology	No	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)	Yes	Yes
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)	No	No
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® My WiFi Technology (Intel® MWT)Differs	Yes	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	72055	76348
Processor codeDiffers	SR0XL	SR1HA
Processor package sizeDiffers	31 x 24 (BGA1023)	37.5 x 37.5 x 4.7 mm
Supported instruction setsDiffers	AVX	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Intel TSX-NIKnown for one	Unknown — not stated by the source	No
Intel TSX-NI versionKnown for one	Unknown — not stated by the source	0.00
Battery2 differ
Battery technologyDiffers	Lithium Polymer (LiPo)	Lithium-Ion (Li-Ion)
Number of battery cellsDiffers	4	6
Battery life (max)Known for one	6 h	Unknown — not stated by the source
Poweridentical
DC-in jack	Yes	Yes
AC adapter frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
AC adapter input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
Securityidentical
Cable lock slot	No	No
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions4 differ
WeightDiffers	1.78 kg	2.5 kg
WidthDiffers	333 mm	376.4 mm
DepthDiffers	224.8 mm	247.9 mm
HeightDiffers	20.3 mm	27.7 mm
Other featuresidentical
64-bit computingKnown for one	Yes	Unknown — not stated by the source
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Intel segment taggingKnown for one	Unknown — not stated by the source	Home office, Small Business
Packaging contentidentical
AC adapter includedKnown 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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