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Product comparison · 2 laptops

Lenovo Flex 2 Pro 15 vs Lenovo W540 Win7 US

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  • 128specifications compared
  • 53differ
  • 75identical
  • 66known for one product only

Key differences

  • Product type
    • Hybrid (2-in-1)
    • Mobile workstation
  • Market positioning
    • Business
    • High performance
  • Display resolution
    • 1920 x 1080 pixels
    • 2880 x 1620 pixels
  • Touchscreen
    • Yes
    • No
  • Processor family
    • Intel® Core™ i5
    • Intel® Core™ i7
  • Processor generation
    • 4th gen Intel® Core™ i5
    • 4th gen Intel® Core™ i7
  • Processor model
    • i5-4210U
    • i7-4810MQ
  • Processor cores
    • 2
    • 4

Side by side

Differences highlightedShow differences only
194 specifications
A

Lenovo

Flex 2 Pro 15View product
B

Lenovo

W540 Win7 USView product
Design3 differ
Product typeDiffersHybrid (2-in-1)Mobile workstation
Product colourBlackBlack
Form factorDiffersConvertible (Fold-back screen)Clamshell
Market positioningDiffersBusinessHigh performance
Housing materialKnown for oneAluminium
Display2 differ
Display diagonal39.6 cm (15.6")39.6 cm (15.6")
Display resolutionDiffers1920 x 1080 pixels2880 x 1620 pixels
TouchscreenDiffersYesNo
Panel typeIPSIPS
LED backlightYesYes
Native aspect ratio16:916:9
Display surfaceKnown for oneMatt
Display brightnessKnown for one220 cd/m²
Touchscreen typeKnown for oneCapacitive
HD typeKnown for oneFull HD
Touch technologyKnown for oneMulti-touch
Processor14 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Core™ i5Intel® Core™ i7
Processor generationDiffers4th gen Intel® Core™ i54th gen Intel® Core™ i7
Processor modelDiffersi5-4210Ui7-4810MQ
Processor coresDiffers24
Processor threadsDiffers48
Processor boost frequencyDiffers2.7 GHz3.8 GHz
Processor frequencyDiffers1.7 GHz2.8 GHz
System bus rate5 GT/s5 GT/s
Processor cacheDiffers3 MB6 MB
Processor cache typeSmart CacheSmart Cache
Processor lithography22 nm22 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core i5-4200 Mobile seriesIntel Core i7-4800 Mobile series
Processor codenameHaswellHaswell
Bus typeDMI2DMI2
FSB ParityKnown for oneNo
SteppingDiffersD0C0
Thermal Design Power (TDP)Differs15 W47 W
Tjunction100 °C100 °C
Maximum number of PCI Express lanesDiffers1216
PCI Express configurationsDiffers4x1, 2x41x16, 2x8, 1x8+2x4
PCI Express slots versionDiffers2.03.0
ECC supported by processorNoNo
Processor socketKnown for oneBGA 1168
Memory4 differ
Internal memoryDiffers8 GB16 GB
Internal memory typeDDR3L-SDRAMDDR3L-SDRAM
Memory clock speed1600 MHz1600 MHz
Memory form factorSO-DIMMSO-DIMM
Memory layout (slots x size)Known for one2 x 8 GB
Memory slotsDiffers2x SO-DIMM4x SO-DIMM
Maximum internal memoryDiffers16 GB32 GB
Maximum internal memory (64-bit)Differs16 GB32 GB
Storage2 differ
Total storage capacityDiffers500 GB512 GB
Storage mediaDiffersHybrid-HDDSSD
Number of SSDs installedKnown for one1
SSD capacityKnown for one512 GB
SSD interfaceKnown for oneSATA III
Optical drive typeKnown for oneDVD Super Multi DL
Card reader integratedYesYes
Compatible memory cardsMMC, SD, SDHC, SDXCMMC, SD, SDHC, SDXC
HDD interfaceKnown for oneSATA III
Hybrid-HDD cache typeKnown for oneFlash
Hybrid-HDD capacityKnown for one500 GB
Hybrid-HDD cache memoryKnown for one8 GB
HDD sizeKnown for one2.5"
Graphics6 differ
On-board graphics cardYesYes
Discrete graphics cardYesYes
Discrete graphics card modelDiffersNVIDIA® GeForce® 840MNVIDIA® Quadro® K2100M
Discrete graphics card memory2 GB2 GB
Discrete graphics memory typeKnown for oneGDDR5
On-board graphics card familyIntel® HD GraphicsIntel® HD Graphics
On-board graphics card modelDiffersIntel® HD Graphics 4400Intel® HD Graphics 4600
Maximum on-board graphics card memory1.74 GB1.74 GB
On-board graphics card base frequencyDiffers200 MHz400 MHz
On-board graphics card dynamic frequency (max)Differs1000 MHz1300 MHz
On-board graphics card DirectX versionDiffers1211.1
On-board graphics card IDDiffers0xA160x416
Number of discrete graphics cards installedKnown for one1
Number of discrete graphics cards supportedKnown for one1
Audioidentical
Audio systemKnown for oneDolby Home Theater v4
Number of built-in speakers22
Built-in microphoneYesYes
Speaker powerKnown for one1.5 W
Cameraidentical
Front cameraYesYes
Front camera resolutionKnown for one1280 x 720 pixels
Network1 differ
Wi-FiYesYes
Wi-Fi standardsDiffers802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
BluetoothYesYes
Bluetooth version4.04.0
Ports & interfaces4 differ
USB 2.0 ports quantity22
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers12
Ethernet LAN (RJ-45) ports11
HDMI ports quantityDiffers10
DisplayPorts quantity00
DVI portNoNo
VGA (D-Sub) ports quantityDiffers01
Thunderbolt ports quantityDiffers01
Headphone outputsKnown for one0
S/PDIF out portKnown for oneNo
Combo headphone/mic portYesYes
Microphone inKnown for oneNo
Docking connectorNoNo
ExpressCard slotKnown for oneYes
CardBus PCMCIA slots quantityKnown for one0
CardBus PCMCIA slot typeKnown for oneNo
Total number of SATA connectorsKnown for one4
Number of SATA III connectorsKnown for one4
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM87
Keyboard1 differ
Pointing deviceDiffersTouchpadThinkPad UltraNav
Keyboard backlitKnown for oneYes
Numeric keypadYesYes
Spill-resistant keyboardKnown for oneYes
Full-size keyboardYesYes
Windows keysYesYes
Keyboard layoutKnown for oneQWERTY
Software1 differ
Operating system installedDiffersWindows 8.1Windows 7 Professional
Operating system architecture64-bit64-bit
Recovery operating systemKnown for oneWindows 8.1 Pro
Processor special features10 differ
Intel® Wireless Display (Intel® WiDi)YesYes
CPU configuration (max)11
Embedded options availableNoNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyKnown for oneNo
Intel Demand Based SwitchingKnown for oneYes
Intel Dual Display Capable TechnologyKnown for oneNo
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyDiffersNoYes
Intel Fast Memory AccessKnown for oneNo
Intel Flex Memory AccessKnown for oneNo
Intel Identity Protection Technology version1.001.00
Intel QuickPath InterconnectKnown for oneYes
Intel Rapid Storage TechnologyDiffersYesNo
Intel Secure Key Technology version1.001.00
Intel Smart Connect TechnologyDiffersYesNo
Intel TSX-NINoNo
Intel TSX-NI version0.000.00
Intel Trusted Execution TechnologyDiffersNoYes
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)DiffersNoYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Active Management Technology (Intel® AMT)Known for oneNo
Intel® Anti-Theft Technology (Intel® AT)YesYes
Intel® Clear Video HD Technology (Intel® CVT HD)YesYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneNo
Intel® High Definition Audio (Intel® HD Audio)DiffersYesNo
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Identity Protection Technology (Intel® IPT)YesYes
Intel® InTru™ 3D TechnologyYesYes
Intel® Insider™YesYes
Intel® Matrix Storage Technology (Intel® MST)NoNo
Intel® My WiFi Technology (Intel® MWT)Known for oneYes
Intel® Quick Sync Video TechnologyYesYes
Intel® Rapid Start TechnologyKnown for oneNo
Intel® Secure KeyYesYes
Intel® Smart CacheYesYes
Intel® Smart Response TechnologyKnown for oneNo
Intel® Turbo Boost Technology2.02.0
Processor ARK IDDiffers8101678937
Processor codeDiffersSR1EFSR15K
Processor package sizeDiffers40 x 24 x 1.5 mm37.5 x 37.5 x 4.7 mm
Supported instruction setsDiffersAVX 2.0, SSE4.1, SSE4.2AVX 2.0
Thermal Monitoring TechnologiesYesYes
Conflict-Free processorYesYes
Intel ME Firmware VersionKnown for one9.5
Intel Smart Connect Technology versionKnown for one1.00
UARTKnown for oneYes
Battery1 differ
Battery technologyKnown for oneLithium-Ion (Li-Ion)
Number of battery cellsDiffers49
Battery capacityKnown for one99.9 Wh
Battery life (max)Known for one9 h
Power1 differ
AC adapter powerDiffers65 W170 W
DC-in jackYesYes
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
Securityidentical
Cable lock slotYesYes
Cable lock slot typeKnown for oneKensington
Fingerprint readerKnown for oneYes
Password protectionKnown for oneYes
Password protection typeKnown for oneHDD, Power on, Supervisor
Weight & dimensions3 differ
WeightDiffers2.39 kg2.6 kg
WidthDiffers382 mm379 mm
DepthDiffers276 mm273 mm
Height (front)Known for one2.8 cm
Height (rear)Known for one3.5 cm
HeightKnown for one25.8 mm
Packaging contentidentical
AC adapter includedYesYes
ManualYesYes
Power cord includedYesYes
Other featuresidentical
Intel segment taggingKnown for oneProfessional
Certificatesidentical
Compliance certificatesKnown for oneRoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneEPEAT Silver, ENERGY STAR

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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