Product comparison · 2 laptops

Lenovo Flex 15D vs Lenovo ThinkPad W540

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  • 77specifications compared
  • 46differ
  • 31identical
  • 98known for one product only

Key differences

  • Display resolution
    • Flex 15D:1366 x 768 pixels
    • ThinkPad W540:1920 x 1080 pixels
  • Processor manufacturer
    • Flex 15D:AMD
    • ThinkPad W540:Intel
  • Processor family
    • Flex 15D:AMD A4
    • ThinkPad W540:Intel® Core™ i7
  • Processor model
    • Flex 15D:A4-5000
    • ThinkPad W540:i7-4800MQ
  • Processor threads
    • Flex 15D:4
    • ThinkPad W540:8
  • Processor frequency
    • Flex 15D:1.5 GHz
    • ThinkPad W540:2.7 GHz
  • Processor cache
    • Flex 15D:2 MB
    • ThinkPad W540:6 MB
  • Processor cache type
    • Flex 15D:L2
    • ThinkPad W540:Smart Cache

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Comparison of Flex 15D, ThinkPad W540
175 specifications
Design1 differ
Product typeLaptopLaptop
Product colourBlackBlack
Form factorDiffersConvertible (Fold-back screen)Clamshell
Display1 differ
Display diagonal39.6 cm (15.6")39.6 cm (15.6")
Display resolutionDiffers1366 x 768 pixels1920 x 1080 pixels
HD typeKnown for oneUnknown — not stated by the sourceFull HD
LED backlightKnown for oneUnknown — not stated by the sourceYes
Native aspect ratio16:916:9
TouchscreenKnown for oneYesUnknown — not stated by the source
Touchscreen typeKnown for oneCapacitiveUnknown — not stated by the source
Touch technologyKnown for oneMulti-touchUnknown — not stated by the source
Processor8 differ
Processor manufacturerDiffersAMDIntel
Processor familyDiffersAMD A4Intel® Core™ i7
Processor generationKnown for oneUnknown — not stated by the source4th gen Intel® Core™ i7
Processor modelDiffersA4-5000i7-4800MQ
Processor cores44
Processor threadsDiffers48
Processor boost frequencyKnown for oneUnknown — not stated by the source3.7 GHz
Processor frequencyDiffers1.5 GHz2.7 GHz
Processor cacheDiffers2 MB6 MB
Processor cache typeDiffersL2Smart Cache
Processor socketDiffersSocket FT3PGA946
Processor lithographyKnown for oneUnknown — not stated by the source22 nm
Processor operating modesKnown for oneUnknown — not stated by the source64-bit
Processor seriesKnown for oneUnknown — not stated by the sourceIntel Core i7-4800 Mobile series
Processor codenameKnown for oneUnknown — not stated by the sourceHaswell
Bus typeKnown for oneUnknown — not stated by the sourceDMI2
FSB ParityKnown for oneUnknown — not stated by the sourceNo
SteppingKnown for oneUnknown — not stated by the sourceC0
Thermal Design Power (TDP)Known for oneUnknown — not stated by the source47 W
TjunctionKnown for oneUnknown — not stated by the source100 °C
Maximum number of PCI Express lanesKnown for oneUnknown — not stated by the source16
PCI Express configurationsKnown for oneUnknown — not stated by the source1x16, 2x8, 1x8+2x4
PCI Express slots versionKnown for oneUnknown — not stated by the source3.0
ECC supported by processorKnown for oneUnknown — not stated by the sourceNo
Memory3 differ
Internal memoryDiffers4 GB8 GB
Internal memory typeDiffersDDR3L-SDRAMDDR3-SDRAM
Memory clock speed1600 MHz1600 MHz
Maximum internal memoryDiffers8 GB32 GB
Memory form factorKnown for oneSO-DIMMUnknown — not stated by the source
Memory layout (slots x size)Known for one1 x 4 GBUnknown — not stated by the source
Memory slotsKnown for one1x SO-DIMMUnknown — not stated by the source
Maximum internal memory (64-bit)Known for one8 GBUnknown — not stated by the source
Storage2 differ
Total storage capacityDiffers500 GB180 GB
Storage mediaDiffersHDDSSD
Number of SSDs installedKnown for oneUnknown — not stated by the source1
SSD capacityKnown for oneUnknown — not stated by the source180 GB
Card reader integratedYesYes
Number of HDDs installedKnown for one1Unknown — not stated by the source
HDD capacityKnown for one500 GBUnknown — not stated by the source
HDD speedKnown for one5400 RPMUnknown — not stated by the source
HDD sizeKnown for one2.5"Unknown — not stated by the source
Optical drive typeKnown for oneNoUnknown — not stated by the source
Compatible memory cardsKnown for oneMMC, SDUnknown — not stated by the source
Graphics2 differ
On-board graphics cardYesYes
On-board graphics card familyDiffersAMD Radeon HD 8000Intel® HD Graphics
On-board graphics card modelDiffersAMD Radeon HD 8330Intel® HD Graphics 4600
Maximum on-board graphics card memoryKnown for oneUnknown — not stated by the source1.74 GB
On-board graphics card base frequencyKnown for oneUnknown — not stated by the source400 MHz
On-board graphics card dynamic frequency (max)Known for oneUnknown — not stated by the source1300 MHz
On-board graphics card DirectX versionKnown for oneUnknown — not stated by the source11.1
On-board graphics card IDKnown for oneUnknown — not stated by the source0x416
Discrete graphics cardKnown for oneYesUnknown — not stated by the source
Discrete graphics card modelKnown for oneAMD Radeon HD 8570MUnknown — not stated by the source
Number of discrete graphics cards installedKnown for one1Unknown — not stated by the source
Number of discrete graphics cards supportedKnown for one1Unknown — not stated by the source
Audio1 differ
Audio systemDiffersDolby AdvancedDolby Home Theater v4
Built-in microphoneYesYes
Number of built-in speakersKnown for one2Unknown — not stated by the source
Cameraidentical
Front cameraYesYes
Network2 differ
Wi-FiYesYes
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11a, 802.11b, 802.11g
Ethernet LANYesYes
Ethernet LAN data ratesDiffers10,100 Mbit/s10,100,1000 Mbit/s
BluetoothYesYes
Top Wi-Fi standardKnown for oneWi-Fi 4 (802.11n)Unknown — not stated by the source
Bluetooth versionKnown for one4.0Unknown — not stated by the source
Ports & interfaces6 differ
USB 2.0 ports quantity22
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers12
eSATA/USB 2.0 ports quantity00
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantity00
eSATA ports quantity00
Ethernet LAN (RJ-45) ports11
HDMI ports quantityDiffers10
DisplayPorts quantity00
DVI portNoNo
VGA (D-Sub) ports quantityDiffers01
Firewire (IEEE 1394) portsKnown for oneUnknown — not stated by the source0
Thunderbolt ports quantityDiffers01
Thunderbolt 2 ports quantityKnown for oneUnknown — not stated by the source0
Mini HDMI ports quantityKnown for oneUnknown — not stated by the source0
Micro HDMI ports quantityKnown for oneUnknown — not stated by the source0
LAN/VGA combo portKnown for oneUnknown — not stated by the sourceNo
Mini VGA ports quantityKnown for oneUnknown — not stated by the source0
Headphone outputsDiffers01
S/PDIF out portNoNo
Combo headphone/mic portYesYes
Microphone inNoNo
ExpressCard slotDiffersNoYes
CardBus PCMCIA slots quantityKnown for one0Unknown — not stated by the source
CardBus PCMCIA slot typeKnown for oneNoUnknown — not stated by the source
SmartCard slotKnown for oneNoUnknown — not stated by the source
Keyboard2 differ
Pointing deviceDiffersTouchpadThinkPad UltraNav
Numeric keypadDiffersNoYes
Windows keysKnown for oneYesUnknown — not stated by the source
Software1 differ
Operating system installedDiffersWindows 8.1Windows 7 Professional
Operating system architecture64-bit64-bit
Drivers includedKnown for oneYesUnknown — not stated by the source
Processor special features10 differ
Intel® Wireless Display (Intel® WiDi)DiffersNoYes
CPU configuration (max)Known for oneUnknown — not stated by the source1
Embedded options availableKnown for oneUnknown — not stated by the sourceNo
Enhanced Intel SpeedStep TechnologyKnown for oneUnknown — not stated by the sourceYes
Execute Disable BitKnown for oneUnknown — not stated by the sourceYes
Idle StatesKnown for oneUnknown — not stated by the sourceYes
Intel 64Known for oneUnknown — not stated by the sourceYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingKnown for oneUnknown — not stated by the sourceNo
Intel Dual Display Capable TechnologyKnown for oneUnknown — not stated by the sourceNo
Intel Enhanced Halt StateKnown for oneUnknown — not stated by the sourceYes
Intel FDI TechnologyKnown for oneUnknown — not stated by the sourceYes
Intel Fast Memory AccessKnown for oneUnknown — not stated by the sourceNo
Intel Flex Memory AccessKnown for oneUnknown — not stated by the sourceNo
Intel Identity Protection Technology versionKnown for oneUnknown — not stated by the source1.00
Intel Rapid Storage TechnologyKnown for oneUnknown — not stated by the sourceNo
Intel Secure Key Technology versionKnown for oneUnknown — not stated by the source1.00
Intel TSX-NIKnown for oneUnknown — not stated by the sourceNo
Intel TSX-NI versionKnown for oneUnknown — not stated by the source0.00
Intel Trusted Execution TechnologyKnown for oneUnknown — not stated by the sourceYes
Intel VT-x with Extended Page Tables (EPT)Known for oneUnknown — not stated by the sourceYes
Intel Virtualization Technology (VT-x)Known for oneUnknown — not stated by the sourceYes
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneUnknown — not stated by the sourceYes
Intel® AES New Instructions (Intel® AES-NI)Known for oneUnknown — not stated by the sourceYes
Intel® Anti-Theft Technology (Intel® AT)DiffersNoYes
Intel® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)NoNo
Intel® Hyper Threading Technology (Intel® HT Technology)DiffersNoYes
Intel® Identity Protection Technology (Intel® IPT)DiffersNoYes
Intel® InTru™ 3D TechnologyDiffersNoYes
Intel® Insider™DiffersNoYes
Intel® My WiFi Technology (Intel® MWT)DiffersNoYes
Intel® Quick Sync Video TechnologyDiffersNoYes
Intel® Secure KeyKnown for oneUnknown — not stated by the sourceYes
Intel® Smart CacheKnown for oneUnknown — not stated by the sourceYes
Intel® Turbo Boost TechnologyDiffersNo2.0
Processor ARK IDKnown for oneUnknown — not stated by the source75128
Processor codeKnown for oneUnknown — not stated by the sourceSR15L
Processor package sizeKnown for oneUnknown — not stated by the source37.5 x 37.5 x 4.7 mm
Supported instruction setsKnown for oneUnknown — not stated by the sourceAVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring TechnologiesKnown for oneUnknown — not stated by the sourceYes
Conflict-Free processorKnown for oneUnknown — not stated by the sourceYes
Intel Smart Connect TechnologyKnown for oneNoUnknown — not stated by the source
Intel® Active Management Technology (Intel® AMT)Known for oneNoUnknown — not stated by the source
Intel® High Definition Audio (Intel® HD Audio)Known for oneNoUnknown — not stated by the source
Intel® Matrix Storage Technology (Intel® MST)Known for oneNoUnknown — not stated by the source
Intel® Rapid Start TechnologyKnown for oneNoUnknown — not stated by the source
Intel® Small Business Advantage (Intel® SBA)Known for oneNoUnknown — not stated by the source
Intel® Smart Response TechnologyKnown for oneNoUnknown — not stated by the source
Battery2 differ
Battery technologyLithium-Ion (Li-Ion)Lithium-Ion (Li-Ion)
Number of battery cellsDiffers49
Battery capacityDiffers48 Wh9210 mAh
Battery life (max)Known for one9 hUnknown — not stated by the source
Poweridentical
AC adapter frequency50 - 60 Hz50 - 60 Hz
AC adapter input voltage100 - 240 V100 - 240 V
DC-in jackYesYes
Security1 differ
Cable lock slotDiffersYesNo
Weight & dimensions4 differ
WeightDiffers2.3 kg2.53 kg
WidthDiffers382 mm375.9 mm
DepthDiffers266 mm248.9 mm
HeightDiffers22.1 mm27.9 mm
Packaging contentidentical
AC adapter includedYesYes
ManualKnown for oneYesUnknown — not stated by the source
Power cord includedKnown for oneYesUnknown — not stated by the source
Other featuresidentical
TV tuner integratedKnown for oneUnknown — not stated by the sourceNo
Intel segment taggingKnown for oneUnknown — not stated by the sourceProfessional
Optical driveidentical
LightScribeKnown for oneNoUnknown — not stated by the source

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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