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Essentials
Product Collection
Vertical Segment
Processor Number
Lithography
Product Collection
 Intel® Core™ X-series Processors Intel® Core™ X-series Processors
Vertical Segment
 Desktop Desktop
Processor Number
 i7-5820K i7-6950X
Lithography
 22 nm 14 nm
Product Collection
 Intel® Core™ X-series Processors Intel® Core™ X-series Processors
Vertical Segment
 Desktop Desktop
Processor Number
 i7-5820K i7-6950X
Lithography
 22 nm 14 nm
CPU Specifications
Total Cores
Total Threads
Max Turbo Frequency
Intel® Turbo Boost Technology 2.0 Frequency‡
Processor Base Frequency
Cache
Bus Speed
TDP
Intel® Turbo Boost Max Technology 3.0 Frequency ‡
Total Cores
 6 10
Total Threads
 12 20
Max Turbo Frequency
 3.60 GHz 3.50 GHz
Intel® Turbo Boost Technology 2.0 Frequency‡
 3.60 GHz
Processor Base Frequency
 3.30 GHz 3.00 GHz
Cache
 15 MB Intel® Smart Cache 25 MB
Bus Speed
 0 GT/s
TDP
 140 W 140 W
Intel® Turbo Boost Max Technology 3.0 Frequency ‡
 4.00 GHz
Total Cores
 6 10
Total Threads
 12 20
Max Turbo Frequency
 3.60 GHz 3.50 GHz
Intel® Turbo Boost Technology 2.0 Frequency‡
 3.60 GHz
Processor Base Frequency
 3.30 GHz 3.00 GHz
Cache
 15 MB Intel® Smart Cache 25 MB
Bus Speed
 0 GT/s
TDP
 140 W 140 W
Intel® Turbo Boost Max Technology 3.0 Frequency ‡
 4.00 GHz
Supplemental Information
Marketing Status
Launch Date
Servicing Status
End of Servicing Updates Date
Embedded Options Available
Included Items
Datasheet
Marketing Status
 Discontinued Discontinued
Launch Date
 Q3'14 Q2'16
Servicing Status
 End of Servicing Lifetime End of Servicing Lifetime
End of Servicing Updates Date
 Wednesday, June 30, 2021 Wednesday, June 30, 2021
Embedded Options Available
 No No
Included Items
 Please note: The boxed product does not include a fan or heat sink Please note: The boxed product does not include a fan or heat sink
Datasheet
 View now View now
Marketing Status
 Discontinued Discontinued
Launch Date
 Q3'14 Q2'16
Servicing Status
 End of Servicing Lifetime End of Servicing Lifetime
End of Servicing Updates Date
 Wednesday, June 30, 2021 Wednesday, June 30, 2021
Embedded Options Available
 No No
Included Items
 Please note: The boxed product does not include a fan or heat sink Please note: The boxed product does not include a fan or heat sink
Datasheet
 View now View now
Memory Specifications
Max Memory Size (dependent on memory type)
Memory Types
Max # of Memory Channels
Max Memory Bandwidth
ECC Memory Supported ‡
Max Memory Size (dependent on memory type)
 64 GB 128 GB
Memory Types
 DDR4 1600/1866/2133 DDR4 2400/2133
Max # of Memory Channels
 4 4
Max Memory Bandwidth
 68 GB/s
ECC Memory Supported ‡
 No No
Max Memory Size (dependent on memory type)
 64 GB 128 GB
Memory Types
 DDR4 1600/1866/2133 DDR4 2400/2133
Max # of Memory Channels
 4 4
Max Memory Bandwidth
 68 GB/s
ECC Memory Supported ‡
 No No
Expansion Options
Scalability
PCI Express Revision
Max # of PCI Express Lanes
Scalability
 1S Only 1S Only
PCI Express Revision
 3.0 3.0
Max # of PCI Express Lanes
 28 40
Scalability
 1S Only 1S Only
PCI Express Revision
 3.0 3.0
Max # of PCI Express Lanes
 28 40
Package Specifications
Sockets Supported
Max CPU Configuration
TCASE
Package Size
Sockets Supported
 FCLGA2011 FCLGA2011
Max CPU Configuration
 1 1
TCASE
 66.8 67.3°
Package Size
 52.5mm x 45.0mm
Sockets Supported
 FCLGA2011 FCLGA2011
Max CPU Configuration
 1 1
TCASE
 66.8 67.3°
Package Size
 52.5mm x 45.0mm
Advanced Technologies
Intel® Turbo Boost Technology ‡
Intel® Hyper-Threading Technology ‡
Intel® 64 ‡
Instruction Set
Instruction Set Extensions
Idle States
Enhanced Intel SpeedStep® Technology
Intel® Demand Based Switching
Thermal Monitoring Technologies
Intel® Identity Protection Technology ‡
Intel® Smart Response Technology
Intel® Turbo Boost Max Technology 3.0 ‡
Intel® Turbo Boost Technology ‡
 2.0 2.0
Intel® Hyper-Threading Technology ‡
 Yes Yes
Intel® 64 ‡
 Yes Yes
Instruction Set
 64-bit 64-bit
Instruction Set Extensions
 Intel® SSE4.2, Intel® AVX2
Idle States
 Yes Yes
Enhanced Intel SpeedStep® Technology
 Yes Yes
Intel® Demand Based Switching
 No
Thermal Monitoring Technologies
 Yes
Intel® Identity Protection Technology ‡
 Yes
Intel® Smart Response Technology
 Yes Yes
Intel® Turbo Boost Max Technology 3.0 ‡
 Yes
Intel® Turbo Boost Technology ‡
 2.0 2.0
Intel® Hyper-Threading Technology ‡
 Yes Yes
Intel® 64 ‡
 Yes Yes
Instruction Set
 64-bit 64-bit
Instruction Set Extensions
 Intel® SSE4.2, Intel® AVX2
Idle States
 Yes Yes
Enhanced Intel SpeedStep® Technology
 Yes Yes
Intel® Demand Based Switching
 No
Thermal Monitoring Technologies
 Yes
Intel® Identity Protection Technology ‡
 Yes
Intel® Smart Response Technology
 Yes Yes
Intel® Turbo Boost Max Technology 3.0 ‡
 Yes
Security & Reliability
Intel® AES New Instructions
Intel® Trusted Execution Technology ‡
Execute Disable Bit ‡
Intel® Virtualization Technology (VT-x) ‡
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Intel® VT-x with Extended Page Tables (EPT) ‡
Intel® AES New Instructions
 Yes Yes
Intel® Trusted Execution Technology ‡
 No No
Execute Disable Bit ‡
 Yes Yes
Intel® Virtualization Technology (VT-x) ‡
 Yes Yes
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
 Yes Yes
Intel® VT-x with Extended Page Tables (EPT) ‡
 Yes Yes
Intel® AES New Instructions
 Yes Yes
Intel® Trusted Execution Technology ‡
 No No
Execute Disable Bit ‡
 Yes Yes
Intel® Virtualization Technology (VT-x) ‡
 Yes Yes
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
 Yes Yes
Intel® VT-x with Extended Page Tables (EPT) ‡
 Yes Yes
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