Core i7-8700K 3.7GHz (Coffee Lake) Socket LGA1151 Processor - Retail

  • BX80684I78700K
  • Hex Core with Hyperthreading Technology
  • 3.70GHz clock speed
  • 14nm Process
  • 12MB L3 Cache
  • Dual Channel DDR4 Controller
  • Integrated DX12 Graphics
  • 3 Year Warranty
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Stock Code: CP-63R-IN

EAN: 5032037108652

MPN: BX80684I78700K

Manufacturer: Intel

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Product information:

Core i7-8700K 3.7GHz (Coffee Lake) Socket LGA1151 Processor - Retail

Coffee Lake

Intel-Logo These codenames belong to the eight generation of Core CPUs which follow on from Kaby Lake and Skylake, although while they still share the 1151 pin socket design, due to the variety of optimisations to Coffee Lake CPUs they will not be compatible with older chipsets. Instead these processors will require Socket 1151 motherboards bearing the 300-series nomenclature. The Intel Core i7 processors from the Coffee Lake generation offer six CPU cores, high clock frequencies and new Turbo Boost features - all with a mere 65 Watt TDP!

Intel's 8th-gen i7 CPUs

The Intel Core i7-8700K at a Glance:

  • 6 physical cores, 12 logical cores thanks to SMT!
  • 3,7 GHz Base Clock with 95 Watt TDP
  • 4,7 GHz Boost Clock with Turbo Boost 2.0
  • Unlocked multiplier for overclocking (OC)
  • 12 Megabyte L3 Cache
  • Support for DDR4-2.666 (Dual Channel)
  • Revised UHD Graphics 630
  • Only compatible with Intel 300-series chipsets
  • Attention: Boxed version without CPU cooler!

The Intel Core i7-8700K: Hexa-Core Processor with Hyper-Threading

The Intel Core i7-8700K comes with an unlocked multiplier for easy overclocking. Yet even without overclocking this Core i7-8700K offers a clock frequency of 3,7 GHz which, using Turbo Boost 2.0, can be increased up to 4,7 GHz. However, it should be noted that the boost clock rates vary depending on 1-core, 2-core, 4-core or 6-core operation, which means that the optimum performance can always be obtained from the Coffee Lake CPU, allowing the user to determine what performance is available for games or applications. The L3 Cache has increased to 12 Megabytes, the Thermal Design Power (TDP) sits at 95 Watts and as a Core i7 this Hexa-Core processor comes with Intel's Hyper-Threading and this enables it to process not just six but rather 12 threads simultaneously.

A fundamental difference compared to Skylake- and Kaby Lake generations lies in the fact that Coffee Lake only uses the fast and efficient DDR4 RAM. The quad-core processors support a maximum standard clock frequency of 2.400 MHz, while the hexa-core processors permit clock frequencies up to 2.666 MHz. The LGA 1151 socket from Intel is retained, but it is essential to ensure that a motherboard with 300 series chipset is used, otherwise the processor could be damaged due to the differences in the power supplied to the chip.

The integrated graphics unit has also been optimized with regard to clock rates and drivers and has now been christened as the Intel HD Graphics UHD 630. With its 24 Execution Units, it offers more than enough graphics power for Intel Quick Sync, GPU computing and of course some games in between. Furthermore, the DirectX 12 graphics unit with the feature level 12_1, OpenGL 4.5 and OpenCL 2.0 compatibility also supports 4K playback, UHD resolutions at 60 Hz via DisplayPort - provided a compatible motherboard is used.

This relates to a boxed version of the processor without a CPU cooler!

Technical Details:

  • Type:
    Intel Core i7-8700K ("Coffee Lake")
    Manufacturing Process: 14 nm PlusPlus
  • Cores:
    6 / 12 (physical / virtual)
  • Clock Frequency:
    Base Clock: 3,7 GHz
    Turbo Clock (max.): 4,7 GHz
  • Cache:
    Level 3 Cache: 12 MB
    Level 2 Cache: 1,5 MB (6x 256 kB)
  • Memory:
    Memory Controller: Internal
    Memory Channels: 2
    Memory Standard: DDR4 (2.666 MHz)
  • Integrated GPU:
    Intel UHD Graphics 630 (24 EUs, max. 1.200 MHz)
  • TDP:
    95 Watt
  • Socket Compatibility:
    LGA 1151
  • Chipset Compatibility:
    300-Series from Intel

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I bought this as an upgrade from my 5930k and with my first overclock took it to 4.8ghz and it runs smoothly keeping under 40oc. May the frames be high and temps be low brothers

Neil Stephen Francis 2018-08-10


This CPU is excellent. I'm sure you've done your own research, I was worried about temperatures, I have a corsair h110, it keeps my temps below 65C when using Intel burn test, and my fans (which are 140mm Noctuas) are almost silent while gaming. Highly recommended for the best gaming CPU you can get.
I upgraded from an i7 3770k and my FPS improved across the board, as did the smoothness of gaming.

James 2018-03-23


Superb cpu i have been waiting for the coffee lake upgrade for a while now and it is worth it, its running at 4.7ghz with ram at 4ghz on xmp without a hitch although i had to wait for the new bios for my board to get it to work properly, i am using an all in one water cooler from nzxt and the cam software shows the cpu temp which appears to cool very quickly after gaming, escape from tarkov runs really well, well chuffed....

mark 2018-01-09

amazing speed :) Just a shame the prices are over the RRP

Fantastic CPU and a lot faster than my i5 2500k 4.5GHZ - Sony Vegas 4k files take a matter of min instead 15 or 20 mins. so well impressed , Games just fly with this CPU. running PUGB on ultra at 1440p well over 90 FPS with 1080ti

Jason Sturgess 2017-11-28

A fantastic all-round CPU

I upgraded from an i5 4690k at 4.4ghz with some trepidation but I am glad that I did. General system performance and responsiveness is so much sharper, everything loads incredibly fast as soon as you get into windows.

I got mine to 5ghz at 1.295v on air with a NH-D15 (and a ton of case fans) which I'm pretty chuffed with.

Gaming performance with a GTX 1080 is improved in all areas (some more than others), but in certain games like GTA 5 the difference is incredible - the game runs so much smoother on the 8700k with no dips in frame rate which my i5 4690k suffered from.

All in all, I would definitely recommend the i7 8700k to anyone who is sitting on a 4 core/4 thread i5(especially haswell or older)

For those sitting on an i7, it may be worth waiting for ice lake unless you have a GTX 1080 or better and want to get the most out of a high refresh monitor.

Dan 2017-11-08

Asus ROG MAXIMUS IX HERO,Intel Z270,S-1151,

hi , work new cpu 8700k for my motherboard , Asus ROG MAXIMUS IX HERO,Intel Z270,S-1151, ??? thanks

mARCUS 2017-11-02

Pure Speed, Pure Threads!

I've overclocked mine to 5200mhz @ 1.350v which beats the Ryzen 1800X 8 core on both single and multi threaded apps comfortably!! And its only a 6 core! Fastest most insane CPU I've ever owned. I thought my 7700K was fast but this is on another level. I've even got my CPU cache overclocked and stable at 5000mhz (-2 offset for stability). Couldn't recommend it enough

Michael Evans 2017-10-16

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