6 Replies Latest reply on Dec 29, 2012 1:18 AM by mbrjazz

    Does 2 mb cache difference mean a lot in a laptop processor?



      I'm looking at to laptops - one with Intel Core i7-3820QM 2,7 GHz Quad Core & one with Intel Core i7-3720QM 2,6 GHz.


      The only difference in the specs acording to Intel comparison chart is this - does the differences have a great significance?

      There is a price difference on the two systems, they are build into!


      Thanks for any answers


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      Rows with differences are highlighted

      3rd Generation Intel® Core™ i7 Processors3rd Generation Intel® Core™ i7 Processors

      3rd Generation Intel® Core™ i7 Processors3rd Generation Intel® Core™ i7 Processors


      Processor Numberi7-3820QMi7-3720QM

      Launch DateQ2'12Q2'12

      # of Cores44

      # of Threads88

      Cache8.0 MB6.0 MB

      Clock Speed2.70 GHz2.60 GHz

      Max Turbo Frequency3.70 GHz3.60 GHz

      Bus/Core Ratio2726

      Bus TypeDMIDMI

      Instruction Set64-bit64-bit

      Instruction Set ExtensionsAVXAVX

      Lithography22 nm22 nm

      Max TDP4545



      Memory Specifications
      Max Memory Size (dependent on memory type)32 GB32 GB

      Memory TypesDDR3/L/-RS 1333/1600DDR3/L/-RS 1333/1600

      # of Memory Channels22

      Max Memory Bandwidth25.625.6



      Graphics Specifications
      Processor GraphicsYesYes

      Graphics Base Frequency650 MHz650 MHz

      Graphics Max Dynamic Frequency1.25 GHz1.25 GHz

      Intel® Quick Sync VideoYesYes

      Intel® InTru™ 3D TechnologyYesYes

      Intel® Wireless DisplayYesYes

      Intel® Flexible Display Interface (Intel® FDI)YesYes

      Intel® Clear Video HD TechnologyYesYes

      Dual Display CapableYesYes



      Expansion Options
      PCI Express Revision3.03.0

      # of PCI Express Lanes11

      PCI Express Configurations1x16, 2x8, 1x8 2x41x16, 2x8, 1x8 2x4



      Package Specifications
      Max CPU Configuration11

      Package Size37.5 x 37.5mm (rPGA988B); 31.0 x 24.0mm (BGA1224)37.5 x 37.5mm (rPGA988B); 31.0 x 24.0mm (BGA1224)

      Graphics and IMC Lithography22 nm22 nm



      Advanced Technologies
      Intel® Hyper-Threading TechnologyYesYes

      Intel® Turbo Boost Technology2.02.0

      Intel® Virtualization Technology for Directed I/O (VT-d)YesYes

      Intel® Trusted Execution TechnologyYesYes

      Intel® 64YesYes

      Intel® Demand Based SwitchingNoNo

      Idle StatesYesYes

      Enhanced Intel SpeedStep® TechnologyYesYes

      Thermal Monitoring TechnologiesYesYes

      Execute Disable BitYesYes