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Product comparison · 2 laptops

Lenovo ThinkPad 420 Intel® Core™ i5 i5-2540M vs Lenovo ThinkPad T420si Intel® Core™ i3 i3-2310M

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  • 129specifications compared
  • 30differ
  • 99identical
  • 35known for one product only

Key differences

  • Processor family
    • Intel® Core™ i5
    • Intel® Core™ i3
  • Processor generation
    • 2nd gen Intel® Core™ i5
    • 2nd gen Intel® Core™ i3
  • Processor model
    • i5-2540M
    • i3-2310M
  • Processor frequency
    • 2.6 GHz
    • 2.1 GHz
  • Tjunction
    • 100 C
    • 100 °C
  • CPU multiplier (bus/core ratio)
    • 26
    • 21
  • Graphics card family
    • Intel
    • Intel, NVIDIA
  • On-board graphics card dynamic frequency (max)
    • 1300 MHz
    • 1100 MHz

Side by side

Differences highlightedShow differences only
164 specifications
A

Lenovo

ThinkPad 420 Intel® Core™ i5 i5-2540M

Model 420

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B

Lenovo

ThinkPad T420si Intel® Core™ i3 i3-2310M

Model T420si

View product
Designidentical
Form factorKnown for oneClamshell
Displayidentical
Display resolutionKnown for one1600 x 900 pixels
HD typeKnown for oneHD+
Native aspect ratioKnown for one16:9
Display brightnessKnown for one230 cd/m²
Processor7 differ
Processor familyDiffersIntel® Core™ i5Intel® Core™ i3
Processor generationDiffers2nd gen Intel® Core™ i52nd gen Intel® Core™ i3
Processor modelDiffersi5-2540Mi3-2310M
Processor frequencyDiffers2.6 GHz2.1 GHz
Processor seriesDiffersIntel Core i5-2500 Mobile SeriesIntel Core i3-2300 Mobile Series
TjunctionDiffers100 C100 °C
CPU multiplier (bus/core ratio)Differs2621
Processor boost frequencyKnown for one3.3 GHz
Storageidentical
Optical drive typeKnown for oneDVD±RW
Compatible memory cardsKnown for oneMMC, SD, SDHC, xD
HDD speedKnown for one7200 RPM
Graphics2 differ
Discrete graphics cardKnown for oneYes
Discrete graphics card modelKnown for oneNVIDIA® NVS™ 4200M
Graphics card familyDiffersIntelIntel, NVIDIA
On-board graphics card dynamic frequency (max)Differs1300 MHz1100 MHz
Audio1 differ
Audio systemDiffersHDHDA
Number of built-in speakersKnown for one2
Speaker powerKnown for one1.5 W
Cameraidentical
Front camera resolution (numeric)Known for one1.3 MP
Front camera resolutionKnown for one1280 x 720 pixels
Optical drive1 differ
LightScribeDiffersNoYes
Network2 differ
Networking featuresKnown for oneGigabit Ethernet, WLAN, BT
Wi-Fi standardsDiffers802.11a, 802.11b, 802.11g802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
BluetoothDiffersNoYes
Networking standardsKnown for oneIEEE 802.3, IEEE 802.3ab, IEEE 802.3u
Cabling technologyKnown for one10/100/1000Base-T(X)
Ports & interfaces3 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers01
eSATA/USB 2.0 ports quantityDiffers10
Mini DisplayPorts quantityKnown for one0
VGA (D-Sub) ports quantityDiffers01
Micro HDMI ports quantityKnown for one0
Mini VGA ports quantityKnown for one0
Combo headphone/mic portKnown for oneNo
PS/2 ports quantityKnown for one0
Parallel ports quantityKnown for one0
Serial ports quantityKnown for one0
Keyboard1 differ
Pointing deviceKnown for oneTouchpad
Full-size keyboardDiffersYesNo
Softwareidentical
Drivers includedKnown for oneYes
Processor special features8 differ
Intel Trusted Execution TechnologyDiffersYesNo
Intel Virtualization Technology for Directed I/O (VT-d)DiffersYesNo
Intel® AES New Instructions (Intel® AES-NI)DiffersYesNo
Intel® Insider™DiffersNoYes
Intel® Turbo Boost TechnologyDiffers2.0No
Processor ARK IDDiffers5007252220
Processor codeDiffersSR046SR04S
Processor package sizeDiffers37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023)37.5 x 37.5 xrPGA988B); 31 x 24 (BGA1023)
Batteryidentical
Battery technologyKnown for oneLithium-Ion (Li-Ion)
Number of battery cellsKnown for one6
Battery capacityKnown for one43.2 Wh
Poweridentical
AC adapter frequencyKnown for one50 - 60 Hz
Security1 differ
Cable lock slotDiffersNoYes
Cable lock slot typeKnown for oneKensington
Fingerprint readerKnown for oneYes
Weight & dimensions4 differ
WeightDiffers2.24 kg1.79 kg
WidthDiffers340 mm343 mm
Height (front)Differs3 cm2.12 cm
Height (rear)Differs3.04 cm2.6 cm
Other featuresidentical
Power supply typeKnown for oneAC - DC

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