Essentials

  • Product CollectionIntel® Core™ X-series Processors
  • Code NameProducts formerly Sandy Bridge E
  • Vertical SegmentDesktop
  • Processor Numberi7-3970X
  • StatusDiscontinued
  • Launch DateQ4'12
  • Lithography32 nm
  • Included ItemsPlease note: The boxed product does not include a fan or heat sink

CPU Specifications

  • # of Cores6
  • # of Threads12
  • Processor Base Frequency3.50 GHz
  • Max Turbo Frequency4.00 GHz
  • Cache15 MB Intel® Smart Cache
  • Bus Speed5 GT/s
  • Intel® Turbo Boost Technology 2.0 Frequency‡4.00 GHz
  • TDP150 W
  • VID Voltage Range0.6V-1.35V

Supplemental Information

  • Embedded Options AvailableNo
  • DatasheetView now

Memory Specifications

  • Max Memory Size (dependent on memory type)64.45 GB
  • Memory TypesDDR3 1066/1333/1600
  • Max # of Memory Channels4
  • Max Memory Bandwidth51.2 GB/s
  • ECC Memory Supported ‡No

Expansion Options

  • PCI Express Revision2.0
  • Max # of PCI Express Lanes40

Package Specifications

  • Sockets SupportedFCLGA2011
  • Max CPU Configuration1
  • TCASE66.8°C
  • Package Size52.5mm x 45.0mm

Advanced Technologies

  • Intel® Turbo Boost Technology ‡2.0
  • Intel vPro® Platform Eligibility ‡No
  • Intel® Hyper-Threading Technology ‡Yes
  • Intel® Virtualization Technology (VT-x) ‡Yes
  • Intel® Virtualization Technology for Directed I/O (VT-d) ‡Yes
  • Intel® VT-x with Extended Page Tables (EPT) ‡Yes
  • Intel® 64 ‡Yes
  • Instruction Set64-bit
  • Instruction Set ExtensionsIntel® SSE4.2, Intel® AVX
  • Idle StatesYes
  • Enhanced Intel SpeedStep® TechnologyYes
  • Intel® Demand Based SwitchingNo
  • Thermal Monitoring TechnologiesYes
  • Intel® Identity Protection Technology ‡Yes
  • Intel® Smart Response TechnologyYes

Security & Reliability

  • Intel® AES New InstructionsYes
  • Intel® Trusted Execution Technology ‡No
  • Execute Disable Bit ‡Yes



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