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Rectangular green PCB chip with gold contact pads and silver metal heat spreader

Intel

Intel Core i7-6700K BX80662I76700K desktop processor

SKU CH-JF1P-6WB02

Quad-core desktop processor with eight threads, 4.0 GHz base clock, 4.2 GHz max turbo, 8 MB L3 cache, integrated Intel HD Graphics 530, dual-channel DDR4 and DDR3L memory support, LGA 1151 socket

  • Product nameCore i7-6700K
  • CPU coresQuad-Core
  • CPU socketLGA 1151
  • Maximum turbo clock4.2 GHz
  • TDP rating91 W
  • Processor classDesktop
  • Boosts to 4.2 GHz for fast single-thread work
  • Eight threads on four cores handle parallel loads
  • 8 MB L3 cache cuts memory latency
  • Dual-channel DDR4 and DDR3L memory support
  • Integrated HD 530 graphics drives 4K displays

Skylake quad-core desktop CPU

The Intel Core i7-6700K is a 14nm Skylake processor with four cores and eight threads. It fits the LGA 1151 socket and works with Intel 100 series chipset motherboards. Base frequency is 4.0 GHz with a max turbo of 4.2 GHz. Integrated Intel HD Graphics 530 runs up to 1.15 GHz dynamic frequency.

8 MB L3 cache and dual-channel memory support

Eight megabytes of L3 cache plus 4 x 256 KB L2 cache feed the cores. Dual-channel memory controller handles DDR4-1866 or DDR4-2133 and DDR3L-1333 or DDR3L-1600 at 1.35 V. Sixteen PCI Express 3.0 lanes connect graphics and storage. Thermal design power is 91 W.

Upgrade from dual-core or earlier quad-core

Builders moving from a dual-core chip or an older quad-core without hyper-threading gain eight threads for multitasking and heavier workloads. The jump is worth it when software uses more than four threads or when integrated graphics must drive a 4096 x 2304 display.

How it compares

Measured against everything we stock in Desktop Processors, at today’s prices. Recalculated every night.

Price $127.99
Cheaper than about 57% of the 494 comparable items (median $149.99).
Maximum turbo clock 4.2 GHz
Lower than about 80% of the 246 comparable items (median 4.7 GHz).
TDP rating 91 W
Typical for this category: the median of 320 items is 95 W.

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIntel
Product lineCore i7 6th Gen
Model nameBX80662I76700K
Product nameCore i7-6700K
Performance
Working frequency4.0 GHz
Processor
CPU coresQuad-Core
CPU socketLGA 1151
Maximum turbo clock4.2 GHz
TDP rating91 W
Processor classDesktop
Processor codenameSkylake
CPU threads8-Threads
Level 2 cache4 × 256 KB
Level 3 cache8 MB
Process node14 nm
Virtualization supportYes
Max PCIe lanes16
Memory
Supported memoryDDR4-1866 / 2133, DDR3L-1333 / 1600 @ 1.35 V
Channel configuration2
Graphics
Built-in graphicsIntel HD Graphics 530
GPU base clock350 MHz
Graphics max dynamic frequency1.15 GHz
Ports & slots
PCIe generation3.0

Questions about this item

Will my existing DDR3L-1600 memory work with the Core i7-6700K?

The processor supports DDR3L-1333 and 1600 at 1.35V alongside DDR4-1866 and 2133, so your DDR3L-1600 modules are compatible.

How can I verify the CPU is reaching its 4.2 GHz max turbo frequency under load?

Run a single-threaded benchmark while monitoring core clocks in a hardware utility; you should see one or more cores hit 4.2 GHz when thermal and power headroom allow.

Does the BX80662I76700K box include a cooler, or must I buy one separately?

The boxed processor ships with Intel's stock thermal solution, so no separate cooler purchase is required for standard operation.

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