Specifications

Essentials

• Product Collection:    Intel® Core™ X-series Processors

• Code Name:    Products formerly Skylake

• Vertical Segment:    Desktop

• Processor Number:    i9-7940X

• Status:    Launched

• Launch Date:    Q3'17

• Included ItemsPlease note: The boxed product does not include a fan or heat sink

Performance

• # of Cores:    14

• # of Threads:    28

• Processor Base Frequency:    3.10 GHz

• Max Turbo Frequency:    4.30 GHz

• Cache:    19.25 MB

• Bus Speed:    8 GT/s DMI3

• # of QPI Links0

• Intel® Turbo Boost Max Technology 3.0 Frequency ‡4.40 GHz

• TDP:    165 W

Supplemental Information

• Embedded Options Available:    No

• Product Brief:    View now

Memory Specifications

• Max Memory Size (dependent on memory type):    128 GB

• Memory Types:    DDR4-2666

• Max # of Memory Channels:    4

• ECC Memory Supported ‡No

Expansion Options

• Scalability:    1S Only

• PCI Express Revision:    3.0

• Max # of PCI Express Lanes:    44

Package Specifications

• Sockets Supported:    FCLGA2066

• Max CPU Configuration:    1

• Thermal Solution Specification:    PCG 2017X

• TJUNCTION102°C

• Low Halogen Options Available:    See MDDS

Advanced Technologies

• Intel® Optane™ Memory Supported ‡Yes

• Intel® Turbo Boost Max Technology 3.0 ‡Yes

• Intel® Turbo Boost Technology ‡2.0

• Intel® Hyper-Threading Technology ‡Yes

• Intel® Virtualization Technology (VT-x) ‡Yes

• Intel® Virtualization Technology for Directed I/O (VT-d)‡Yes

• Intel® 64 ‡Yes

• Instruction Set ExtensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512

• # of AVX-512 FMA Units:    2

• Enhanced Intel SpeedStep® Technology:    Yes

Security & Reliability

• Intel® AES New Instructions:    Yes

• Execute Disable Bit ‡Yes