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Intel

Intel Core i7-8700K Coffee Lake 6-Core 3.7 GHz desktop processor

SKU CH-BPBJ-98A5N

Six-core desktop processor with twelve threads, 3.7 GHz base clock, 4.7 GHz max turbo, 12 MB L3 cache and integrated UHD Graphics 630 for LGA 1151 (300 Series) motherboards

  • Processors TypeDesktop
  • NameCore i7-8700K
  • CPU Socket TypeLGA 1151 (300 Series)
  • Core NameCoffee Lake
  • # of Cores6-Core
  • # of Threads12-Threads
  • Six cores and twelve threads handle heavy multitasking
  • 7 GHz max turbo frequency speeds single-thread workloads
  • 12 MB L3 cache reduces data-access latency
  • Unlocked multiplier enables manual frequency tuning
  • Intel UHD Graphics 630 provides baseline video output

Core i7-8700K unlocked desktop processor

The Intel Core i7-8700K is an unlocked desktop processor built on the Coffee Lake architecture. It delivers six cores and twelve threads with a base frequency of 3.7 GHz and a maximum turbo frequency of 4.7 GHz. The integrated Intel UHD Graphics 630 operates at a base frequency of 350 MHz. This part is aimed at enthusiasts who want to adjust clock speeds on a 14nm platform.

LGA 1151 (300 Series) platform constraints

The processor fits only motherboards with the LGA 1151 socket wired for Intel 300 Series chipsets. It supports dual-channel DDR4 memory at 2666 MT/s with a maximum capacity of 64 GB. No cooling solution or thermal paste is supplied in the box. Virtualization technology and 64-bit instruction support are included for compatible workloads.

4.7 GHz maximum turbo frequency

The peak single-core turbo frequency of 4.7 GHz is the key figure that determines whether this processor meets a given performance target. Twelve megabytes of L3 cache feed the six cores during burst workloads. The unlocked multiplier allows manual frequency tuning when paired with a 300 Series board. Select this model if that ceiling matches the required headroom.

Highlights

  • Six cores and twelve threads handle heavy multitasking
  • 7 GHz max turbo frequency speeds single-thread workloads
  • 12 MB L3 cache reduces data-access latency
  • Unlocked multiplier enables manual frequency tuning
  • Intel UHD Graphics 630 provides baseline video output

Specifications

BrandIntel
Processors TypeDesktop
SeriesCore i7 8th Gen
NameCore i7-8700K
ModelCM8068403358220
CPU Socket TypeLGA 1151 (300 Series)
Core NameCoffee Lake
# of Cores6-Core
# of Threads12-Threads
Operating Frequency3.7 GHz
Max Turbo Frequency4.7 GHz
L3 Cache12MB
Manufacturing Tech14nm
Instruction Set64-Bit
Hyper-Threading SupportYes
Memory TypesDDR4-2666
Memory Channel2
Virtualization Technology SupportYes
Integrated GraphicsIntel UHD Graphics 630
Graphics Base Frequency350 MHz
Graphics Max Dynamic Frequency1.2 GHz
PCI Express Revision3.0
Max Number of PCI Express Lanes16
Thermal Design Power95W
Cooling DeviceCooling device not included - Processor Only
Operating System SupportedWindows 11

Questions about this item

Which Core i7-8700K version should I choose for an LGA 1151 (300 Series) build?

The CM8068403358220 model is the 6-core, 12-thread Coffee Lake chip with 3.7 GHz base clock, 4.7 GHz max turbo, 12 MB L3 cache, unlocked multiplier and Intel UHD Graphics 630 — exactly the specification listed.

What does the 4.7 GHz max turbo figure mean once the chip is installed?

It is the highest single-core frequency the processor can reach under Intel Turbo Boost Max Technology 3.0 when thermal and power headroom allow; sustained all-core speeds will sit lower.

What interface does the LGA 1151 (300 Series) socket provide and what does it limit in practice?

The socket connects the CPU to the Intel 300-series chipset and dual-channel DDR4-2666 memory controller; memory speed is capped at 2666 MT/s unless the motherboard supports higher XMP profiles.

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