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Product comparison · 2 laptops

Fujitsu LIFEBOOK 751 Intel® Core™ i5 i5-2520M vs Fujitsu LIFEBOOK S781 Intel® Core™ i7 i7-2640M

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  • 118specifications compared
  • 29differ
  • 89identical
  • 53known for one product only

Key differences

  • Product colour
    • Black, White
    • Black, Silver
  • Display diagonal
    • 39.6 cm (15.6")
    • 35.6 cm (14")
  • Processor family
    • Intel® Core™ i5
    • Intel® Core™ i7
  • Processor generation
    • 2nd gen Intel® Core™ i5
    • 2nd gen Intel® Core™ i7
  • Processor model
    • i5-2520M
    • i7-2640M
  • Processor boost frequency
    • 3.2 GHz
    • 3.5 GHz
  • Processor frequency
    • 2.5 GHz
    • 2.8 GHz
  • Processor cache
    • 3 MB
    • 4 MB

Side by side

Differences highlightedShow differences only
171 specifications
A

Fujitsu

LIFEBOOK 751 Intel® Core™ i5 i5-2520M

Model 751

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B

Fujitsu

LIFEBOOK S781 Intel® Core™ i7 i7-2640M

Model S781

View product
Design1 differ
Product colourDiffersBlack, WhiteBlack, Silver
Form factorKnown for oneClamshell
Display1 differ
Display diagonalDiffers39.6 cm (15.6")35.6 cm (14")
LED backlightYesYes
Display brightnessKnown for one220 cd/m²
Contrast ratio (typical)Known for one300:1
Processor10 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Core™ i5Intel® Core™ i7
Processor generationDiffers2nd gen Intel® Core™ i52nd gen Intel® Core™ i7
Processor modelDiffersi5-2520Mi7-2640M
Processor cores22
Processor threads44
Processor boost frequencyDiffers3.2 GHz3.5 GHz
Processor frequencyDiffers2.5 GHz2.8 GHz
System bus rate5 GT/s5 GT/s
Processor cacheDiffers3 MB4 MB
Processor cache typeSmart CacheSmart Cache
Processor lithography32 nm32 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core i5-2500 Mobile SeriesIntel Core i7-2600 Mobile Series
Processor codenameSandy BridgeSandy Bridge
Bus typeDMIDMI
FSB ParityNoNo
SteppingJ1J1
Thermal Design Power (TDP)35 W35 W
TjunctionDiffers100 °C100 C
Maximum number of PCI Express lanes1616
PCI Express configurationsDiffers1x16, 2x8, 1x8+2x41x16, 2x8
PCI Express slots version2.02.0
CPU multiplier (bus/core ratio)Differs2528
Compatible processor seriesKnown for oneIntel® Core™ i7
ECC supported by processorNoNo
Processor socketKnown for oneSocket 988
Processor upgradeKnown for oneYes
Memory1 differ
Internal memory4 GB4 GB
Internal memory typeDDR3-SDRAMDDR3-SDRAM
Memory clock speed1333 MHz1333 MHz
Memory slotsDiffers1x SO-DIMM2x SO-DIMM
Maximum internal memory8 GB8 GB
Storage3 differ
Total storage capacityDiffers320 GB128 GB
Storage mediaDiffersHDDSSD
SSD capacityKnown for one128 GB
Optical drive typeDVD Super MultiDVD Super Multi
Card reader integratedYesYes
Compatible memory cardsDiffersMemory Stick (MS), SDMemory Stick (MS), MS PRO, SD
HDD interfaceKnown for oneSATA
HDD speedKnown for one7200 RPM
Graphicsidentical
On-board graphics cardYesYes
Graphics card familyIntelIntel
On-board graphics card familyIntel® HD GraphicsIntel® HD Graphics
On-board graphics card modelIntel® HD Graphics 3000Intel® HD Graphics 3000
On-board graphics card base frequency650 MHz650 MHz
On-board graphics card dynamic frequency (max)1300 MHz1300 MHz
On-board graphics card ID0x1160x116
Maximum resolutionKnown for one2560 x 1600 pixels
Audioidentical
Number of built-in speakers22
Built-in microphoneYesYes
Audio system full duplexKnown for oneYes
Audio systemKnown for oneRealtek ALC269 HD
Cameraidentical
Front camera resolution (numeric)1.3 MP1.3 MP
Optical driveidentical
Disc types supportedKnown for oneCD-R, CD-RW, DVD+R, DVD+RW, DVD-R, DVD-RW
Network1 differ
Mobile network connectionKnown for oneYes
Mobile network generationKnown for one3G
Wi-FiYesYes
Networking featuresKnown for oneGigabit Ethernet
Wireless technologyKnown for oneWi-Fi
Wi-Fi standardsDiffers802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11a, 802.11b, 802.11g
Ethernet LANYesYes
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
BluetoothYesYes
Bluetooth version3.0+HS3.0+HS
Data networkKnown for oneYes
Cabling technology10/100/1000Base-T(X)10/100/1000Base-T(X)
Integrated 4G WiMAXYesYes
Top Wi-Fi standardKnown for oneWi-Fi 4 (802.11n)
Ports & interfaces2 differ
USB 2.0 ports quantityDiffers23
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity11
eSATA/USB 2.0 ports quantityKnown for one0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityDiffers10
Ethernet LAN (RJ-45) portsKnown for one1
HDMI ports quantityKnown for one0
DisplayPorts quantityKnown for one1
DVI portKnown for oneNo
VGA (D-Sub) ports quantity11
Firewire (IEEE 1394) portsKnown for one0
Thunderbolt ports quantityKnown for one0
Headphone outputsKnown for one1
Microphone inKnown for oneYes
Docking connectorKnown for oneYes
ExpressCard slotYesYes
CardBus PCMCIA slots quantityKnown for one0
CardBus PCMCIA slot typeKnown for oneNo
SmartCard slotYesYes
TV-outNoNo
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM67 Express
Keyboard2 differ
Pointing deviceTouchpadTouchpad
Numeric keypadDiffersYesNo
Spill-resistant keyboardYesYes
Keyboard number of keysDiffers8485
Keyboard layoutKnown for oneQWERTY
Softwareidentical
Operating system installedWindows 7 ProfessionalWindows 7 Professional
Operating system architectureKnown for one64-bit
Bundled softwareKnown for oneSoftex Omnipass CyberLink PowerDVD CyberLink PowerDirector Roxio Easy Media Creator Adobe Acrobat Reader
Processor special features3 differ
Intel® Wireless Display (Intel® WiDi)YesYes
CPU configuration (max)11
Embedded options availableNoNo
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Graphics & IMC lithography32 nm32 nm
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingNoNo
Intel Dual Display Capable TechnologyYesYes
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyYesYes
Intel Fast Memory AccessYesYes
Intel Flex Memory AccessYesYes
Intel Identity Protection Technology version1.001.00
Intel Rapid Storage TechnologyNoNo
Intel Trusted Execution TechnologyYesYes
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
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)NoNo
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Identity Protection Technology (Intel® IPT)YesYes
Intel® InTru™ 3D TechnologyYesYes
Intel® Insider™DiffersNoYes
Intel® My WiFi Technology (Intel® MWT)YesYes
Intel® Quick Sync Video TechnologyYesYes
Intel® Smart CacheYesYes
Intel® Turbo Boost Technology2.02.0
Processor ARK IDDiffers5222953464
Processor codeDiffersSR048SR03R
Processor package size37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction setsAVXAVX
Thermal Monitoring TechnologiesYesYes
Conflict-Free processorNoNo
Batteryidentical
Battery technologyKnown for oneLithium-Ion (Li-Ion)
Number of battery cells66
Battery capacity67 Wh67 Wh
Battery life (max)Known for one10 h
Battery recharge timeKnown for one5.4 h
Poweridentical
AC adapter power80 W80 W
AC adapter output currentKnown for one4.22 A
AC adapter output voltage19 V19 V
DC-in jackYesYes
AC adapter input voltageKnown for one100 - 240 V
Security2 differ
Cable lock slotDiffersNoYes
Cable lock slot typeKnown for oneKensington
Password protection typeDiffersBIOS, HDDBIOS, Supervisor, User
Fingerprint readerKnown for oneYes
Trusted Platform Module (TPM)Known for oneYes
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 35 °C
Operating relative humidity (H-H)Known for one20 - 80%
Weight & dimensions3 differ
WeightDiffers2.7 kg2.15 kg
WidthDiffers374 mm340 mm
Depth245 mm245 mm
HeightDiffers37 mm35 mm
Packaging contentidentical
AC adapter includedKnown for oneYes
ManualKnown for oneYes
Other featuresidentical
Infrared data portKnown for oneNo
Compliance industry standardsKnown for oneIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Power requirementsKnown for one100 - 240V
Power supply typeKnown for oneAC/DC
Supplied AC adapter typeACAC

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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