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Intel Core i7-6700K

95 W
4 GHz
4.2 GHz
Socket 1151
Intel Socket 1151
Intel Socket 1151
The Intel Core i7-6700K is a desktop processor with 4 cores, launched in August 2015. It is part of the Core i7 lineup, using the Skylake architecture with Socket 1151. Thanks to Intel Hyper-Threading the core-count is effectively doubled, to 8 threads. Core i7-6700K has 8MB of L3 cache and operates at 4 GHz by default, but can boost up to 4.2 GHz, depending on the workload. Intel is building the Core i7-6700K on a 14 nm production process, the transistor count is unknown. The multiplier is locked on Core i7-6700K, which limits its overclocking capabilities.
With a TDP of 95 W, the Core i7-6700K consumes a good deal of power, so decent cooling is needed. Intel's processor supports DDR4 memory with a dual-channel interface. The highest officially supported memory speed is 2133 MHz, but with overclocking (and the right memory modules) you can go even higher. For communication with other components in the system, Core i7-6700K uses a PCI-Express Gen 3 connection. This processor features the HD Graphics 530 integrated graphics solution.
Hardware virtualization is available on the Core i7-6700K, which greatly improves virtual machine performance. Additionally, IOMMU virtualization (PCI passthrough) is supported, so that guest virtual machines may directly use host hardware. Programs using Advanced Vector Extensions (AVX) will run on this processor, boosting performance for calculation-heavy applications. Besides AVX, Intel is including the newer AVX2 standard, too, but not AVX-512.


Socket: Intel Socket 1151
Foundry: Intel
Process Size: 14 nm
tCaseMax: 72°C


Frequency: 4 GHz
Turbo Clock: up to 4.2 GHz
Base Clock: 100 MHz
Multiplier: 40.0x
Multiplier Unlocked: No
TDP: 95 W


Market: Desktop
Production Status: Active
Release Date: Aug 1st, 2015
Codename: Skylake
Generation: Core i7
Part#: SR2L0
Memory Support: DDR4-2133 MHz
ECC Memory: No
PCI-Express: Gen 3, 16 Lanes
(CPU only)


# of Cores: 4
# of Threads: 8
SMP # CPUs: 1
Integrated Graphics: HD Graphics 530


Cache L1: 64K (per core)
Cache L2: 256K (per core)
Cache L3: 8MB (shared)


  • MMX
  • SSE
  • SSE2
  • SSE3
  • SSSE3
  • SSE4.2
  • AVX
  • AVX2
  • EIST
  • Intel 64
  • XD bit
  • VT-x
  • VT-d
  • HTT
  • AES-NI
  • TSX
  • TXT
  • FMA3
  • F16C
  • BMI1
  • BMI2
  • Boost 2.0
Jul 2nd, 2022 13:55 EDT change timezone

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