Product comparison · 2 laptops

Lenovo Edge S440 + ThinkPad OneLink Dock vs Lenovo ThinkPad W540

131specifications compared
47differ
84identical
53known for one product only

Key differences

Display diagonal
- Edge S440 + ThinkPad OneLink Dock:35.6 cm (14")
- ThinkPad W540:39.6 cm (15.6")
Display resolution
- Edge S440 + ThinkPad OneLink Dock:1600 x 900 pixels
- ThinkPad W540:1920 x 1080 pixels
HD type
- Edge S440 + ThinkPad OneLink Dock:HD+
- ThinkPad W540:Full HD
Processor model
- Edge S440 + ThinkPad OneLink Dock:i7-4500U
- ThinkPad W540:i7-4800MQ
Processor cores
- Edge S440 + ThinkPad OneLink Dock:2
- ThinkPad W540:4
Processor threads
- Edge S440 + ThinkPad OneLink Dock:4
- ThinkPad W540:8
Processor boost frequency
- Edge S440 + ThinkPad OneLink Dock:3 GHz
- ThinkPad W540:3.7 GHz
Processor frequency
- Edge S440 + ThinkPad OneLink Dock:1.8 GHz
- ThinkPad W540:2.7 GHz

Side by side

Differences highlightedShow differences only

Comparison of Edge S440 + ThinkPad OneLink Dock, ThinkPad W540
184 specifications	A Lenovo Edge S440 + ThinkPad OneLink Dock View product	B Lenovo ThinkPad W540 View product
Display3 differ
Display diagonalDiffers	35.6 cm (14")	39.6 cm (15.6")
Display resolutionDiffers	1600 x 900 pixels	1920 x 1080 pixels
TouchscreenKnown for one	Yes	Unknown — not stated by the source
Touchscreen typeKnown for one	Capacitive	Unknown — not stated by the source
HD typeDiffers	HD+	Full HD
Touch technologyKnown for one	Multi-touch	Unknown — not stated by the source
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Dual-screenKnown for one	No	Unknown — not stated by the source
Processor12 differ
Processor modelDiffers	i7-4500U	i7-4800MQ
Processor coresDiffers	2	4
Processor threadsDiffers	4	8
Processor boost frequencyDiffers	3 GHz	3.7 GHz
Processor frequencyDiffers	1.8 GHz	2.7 GHz
Processor cacheDiffers	4 MB	6 MB
L3 cacheKnown for one	4 MB	Unknown — not stated by the source
Processor socketDiffers	BGA 1168	PGA946
Processor seriesDiffers	Intel Core i7-4500 Mobile series	Intel Core i7-4800 Mobile series
Thermal Design Power (TDP)Differs	15 W	47 W
Maximum number of PCI Express lanesDiffers	12	16
PCI Express configurationsDiffers	2x4	1x16, 2x8, 1x8+2x4
PCI Express slots versionDiffers	2.0	3.0
Memory1 differ
Memory form factorKnown for one	SO-DIMM	Unknown — not stated by the source
Memory layout (slots x size)Known for one	1 x 8 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	32 GB
Storage2 differ
Total storage capacityDiffers	256 GB	180 GB
SSD capacityDiffers	256 GB	180 GB
SSD interfaceKnown for one	SATA II	Unknown — not stated by the source
Optical drive typeKnown for one	No	Unknown — not stated by the source
Compatible memory cardsKnown for one	MMC, SD, SDHC, SDXC	Unknown — not stated by the source
Graphics5 differ
Discrete graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	AMD Radeon HD 8670M	Unknown — not stated by the source
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
On-board graphics card modelDiffers	Intel® HD Graphics 4400	Intel® HD Graphics 4600
On-board graphics card base frequencyDiffers	200 MHz	400 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1300 MHz
On-board graphics card DirectX versionDiffers	12	11.1
On-board graphics card IDDiffers	0xA16	0x416
Audio1 differ
Audio systemDiffers	Dolby Home Theater	Dolby Home Theater v4
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Speaker powerKnown for one	3 W	Unknown — not stated by the source
Cameraidentical
Front camera resolutionKnown for one	1280 x 720 pixels	Unknown — not stated by the source
Optical driveidentical
LightScribeKnown for one	No	Unknown — not stated by the source
Network1 differ
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, 802.11b, 802.11g
Bluetooth versionKnown for one	4.0	Unknown — not stated by the source
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers	0	2
HDMI ports quantityDiffers	1	0
VGA (D-Sub) ports quantityDiffers	0	1
Thunderbolt ports quantityDiffers	0	1
Headphone outputsDiffers	0	1
Docking connectorKnown for one	Yes	Unknown — not stated by the source
ExpressCard slotDiffers	No	Yes
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
Total number of SATA connectorsKnown for one	4	Unknown — not stated by the source
Number of SATA III connectorsKnown for one	4	Unknown — not stated by the source
USB Sleep-and-ChargeKnown for one	Yes	Unknown — not stated by the source
USB Sleep-and-Charge portsKnown for one	1	Unknown — not stated by the source
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 backlitKnown for one	Yes	Unknown — not stated by the source
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
Software1 differ
Operating system installedDiffers	Windows 8 Pro	Windows 7 Professional
Processor special features6 differ
Intel ME Firmware VersionKnown for one	9.5	Unknown — not stated by the source
Intel Rapid Storage TechnologyDiffers	Yes	No
Intel Smart Connect TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Smart Connect Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
Intel® High Definition Audio (Intel® HD Audio)Known for one	Yes	Unknown — not stated by the source
Intel® Matrix Storage Technology (Intel® MST)Known for one	Yes	Unknown — not stated by the source
Processor ARK IDDiffers	75460	75128
Processor codeDiffers	SR16Z	SR15L
Processor package sizeDiffers	40 x 24 x 1.5 mm	37.5 x 37.5 x 4.7 mm
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Battery3 differ
Battery technologyDiffers	Lithium Polymer (LiPo)	Lithium-Ion (Li-Ion)
Number of battery cellsDiffers	4	9
Battery capacityDiffers	46 Wh	9210 mAh
Battery life (max)Known for one	6 h	Unknown — not stated by the source
Poweridentical
AC adapter powerKnown for one	65 W	Unknown — not stated by the source
Security1 differ
Cable lock slotDiffers	Yes	No
Fingerprint readerKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Weight & dimensions4 differ
WeightDiffers	1.92 kg	2.53 kg
WidthDiffers	332.8 mm	375.9 mm
DepthDiffers	224.8 mm	248.9 mm
HeightDiffers	22.1 mm	27.9 mm
Packaging contentidentical
ManualKnown for one	Yes	Unknown — not stated by the source
Power cord includedKnown for one	Yes	Unknown — not stated by the source
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Intel segment taggingKnown for one	Unknown — not stated by the source	Professional

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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