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Product comparison · 2 laptops

Lenovo Essential 575 E-350 vs Lenovo T420 + Mini Dock

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  • 61specifications compared
  • 28differ
  • 33identical
  • 92known for one product only

Key differences

  • Display diagonal
    • 39.6 cm (15.6")
    • 35.6 cm (14")
  • Processor model
    • E-350
    • i5-2410M
  • Processor frequency
    • 1.6 GHz
    • 2.3 GHz
  • Processor cache
    • 1 MB
    • 3 MB
  • Processor cache type
    • L2
    • Smart Cache
  • Internal memory
    • 2 GB
    • 4 GB
  • Total storage capacity
    • 320 GB
    • 500 GB
  • HDD speed
    • 5400 RPM
    • 7200 RPM

Side by side

Differences highlightedShow differences only
153 specifications
A

Lenovo

Essential 575 E-350

Model 575

View product
B

Lenovo

T420 + Mini DockView product
Designidentical
Product colourKnown for oneBlack
Display1 differ
Display diagonalDiffers39.6 cm (15.6")35.6 cm (14")
LED backlightKnown for oneYes
Processor4 differ
Processor manufacturerKnown for oneIntel
Processor familyKnown for oneIntel® Core™ i5
Processor generationKnown for one2nd gen Intel® Core™ i5
Processor modelDiffersE-350i5-2410M
Processor coresKnown for one2
Processor threadsKnown for one4
Processor boost frequencyKnown for one2.9 GHz
Processor frequencyDiffers1.6 GHz2.3 GHz
System bus rateKnown for one5 GT/s
Processor cacheDiffers1 MB3 MB
Processor cache typeDiffersL2Smart Cache
Processor socketKnown for oneBGA 1023
Processor lithographyKnown for one32 nm
Processor operating modesKnown for one64-bit
Processor seriesKnown for oneIntel Core i5-2400 Mobile Series
Processor codenameKnown for oneSandy Bridge
Bus typeKnown for oneDMI
FSB ParityKnown for oneNo
SteppingKnown for oneJ1
Thermal Design Power (TDP)Known for one35 W
TjunctionKnown for one100 °C
Maximum number of PCI Express lanesKnown for one16
PCI Express configurationsKnown for one1x8, 1x16, 2x4, 2x8
PCI Express slots versionKnown for one2.0
CPU multiplier (bus/core ratio)Known for one23
ECC supported by processorKnown for oneNo
Memory1 differ
Internal memoryDiffers2 GB4 GB
Memory clock speedKnown for one1333 MHz
Storage4 differ
Total storage capacityDiffers320 GB500 GB
HDD speedDiffers5400 RPM7200 RPM
Optical drive typeDiffersDVD Super Multi DLDVD-RW
Compatible memory cardsDiffersMMC, SDMemory Stick (MS), MMC, MS PRO, SD
Number of HDDs installedKnown for one1
HDD capacityKnown for one320 GB
Graphics4 differ
On-board graphics cardDiffersNoYes
Discrete graphics card modelDiffersAMD Radeon HD 6310MIntel® HD Graphics
Graphics card familyDiffersAMDIntel
On-board graphics card familyKnown for oneIntel® HD Graphics
On-board graphics card modelDiffersNot availableIntel® HD Graphics 3000
On-board graphics card base frequencyKnown for one650 MHz
On-board graphics card dynamic frequency (max)Known for one1200 MHz
On-board graphics card IDKnown for one0x116
Audioidentical
Audio systemKnown for oneHDA
Speaker powerKnown for one1.5 W
Built-in microphoneKnown for oneYes
Network1 differ
Mobile network connectionKnown for oneYes
Mobile network generationKnown for one4G
4G standardKnown for oneWiMAX
WWANKnown for oneInstalled
Cabling technologyDiffers10/100Base-T(X)10/100/1000Base-T(X)
4G WiMAXKnown for oneYes
Integrated 4G WiMAXKnown for oneYes
Top Wi-Fi standardKnown for oneWi-Fi 4 (802.11n)
Wi-Fi standardsKnown for one802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers43
eSATA/USB 2.0 ports quantityDiffers01
HDMI ports quantityKnown for one0
DisplayPorts quantityDiffers01
Mini DisplayPorts quantityKnown for one0
VGA (D-Sub) ports quantityDiffers10
ExpressCard slotDiffersNoYes
Modem (RJ-11) portsKnown for one0
PS/2 ports quantityKnown for one0
Parallel ports quantityKnown for one0
Serial ports quantityKnown for one0
USB 1.1 ports quantityKnown for one0
Performanceidentical
Motherboard chipsetKnown for oneIntel® QM67 Express
Keyboard1 differ
Full-size keyboardDiffersYesNo
Software1 differ
Operating system installedDiffersWindows 7 Home PremiumWindows 7 Professional
Drivers includedKnown for oneYes
Processor special featuresidentical
Intel® Wireless Display (Intel® WiDi)Known for oneYes
Embedded options availableKnown for oneNo
Enhanced Intel SpeedStep TechnologyKnown for oneYes
Execute Disable BitKnown for oneYes
Graphics & IMC lithographyKnown for one32 nm
Idle StatesKnown for oneYes
Intel 64Known for oneYes
Intel Clear Video TechnologyKnown for oneNo
Intel Demand Based SwitchingKnown for oneNo
Intel Dual Display Capable TechnologyKnown for oneYes
Intel Enhanced Halt StateKnown for oneYes
Intel FDI TechnologyKnown for oneYes
Intel Fast Memory AccessKnown for oneYes
Intel Flex Memory AccessKnown for oneYes
Intel Identity Protection Technology versionKnown for one1.00
Intel Rapid Storage TechnologyKnown for oneNo
Intel Trusted Execution TechnologyKnown for oneNo
Intel VT-x with Extended Page Tables (EPT)Known for oneYes
Intel Virtualization Technology (VT-x)Known for oneYes
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneNo
Intel® AES New Instructions (Intel® AES-NI)Known for oneNo
Intel® Anti-Theft Technology (Intel® AT)Known for oneYes
Intel® Clear Video HD Technology (Intel® CVT HD)Known for oneYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for oneNo
Intel® Hyper Threading Technology (Intel® HT Technology)Known for oneYes
Intel® Identity Protection Technology (Intel® IPT)Known for oneYes
Intel® InTru™ 3D TechnologyKnown for oneYes
Intel® Insider™Known for oneNo
Intel® My WiFi Technology (Intel® MWT)Known for oneYes
Intel® Quick Sync Video TechnologyKnown for oneYes
Intel® Smart CacheKnown for oneYes
Intel® Turbo Boost TechnologyKnown for one2.0
Processor ARK IDKnown for one52224
Processor package sizeKnown for one37.5x37.5 (rPGA988B); 31 x 24 (BGA1023)
Supported instruction setsKnown for oneAVX
Thermal Monitoring TechnologiesKnown for oneYes
Conflict-Free processorKnown for oneNo
Security1 differ
Cable lock slotDiffersNoYes
Cable lock slot typeKnown for oneKensington
Weight & dimensions5 differ
WeightDiffers2.6 kg2.24 kg
WidthDiffers377 mm340 mm
DepthDiffers250 mm229.9 mm
Height (front)Differs1.73 cm2.99 cm
Height (rear)Differs3.49 cm3.04 cm
Other featuresidentical
Video inKnown for one0
Intel segment taggingKnown for oneHome office, Small Business
Batteryidentical
Battery life (max)Known for one6 h

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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