Intel

Intel BX80684I78700K Core i7-8700K Unlocked Processor

4.8 (4695 reviews)
UHDi7-8700K

Intel's unlocked 6-core i7-8700K turbo boosts to 4.7 GHz, delivering strong multi-threaded performance for gaming and content creation.

$199.00*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Intel Core i7-8700K is a 6-core, 12-thread desktop processor from Intel's 8th-generation Coffee Lake lineup, designed for users who demand high clock speeds and strong multi-threaded performance. With a base frequency of 3.70 GHz that turbo boosts up to 4.70 GHz, it delivers the responsiveness needed for gaming, content creation, video editing, and multitasking. The unlocked multiplier gives enthusiasts the freedom to push clock speeds further when paired with a Z370 or Z390 motherboard and adequate cooling.

The 12 MB SmartCache supports fast data access across all six cores, and Intel Hyper-Threading Technology ensures that demanding applications can take full advantage of the processor's 12-thread capability. Intel UHD Graphics 630 is integrated on-die, providing display output for systems that do not require a discrete graphics card. The i7-8700K also supports Intel Optane Memory for accelerated storage performance and DDR4 system memory. With a 95W TDP, it fits standard desktop builds but does benefit from quality aftermarket cooling — particularly under sustained loads or overclocked configurations. It is compatible exclusively with motherboards based on Intel 300 Series chipsets via the LGA1151 socket.

Key Features

Intel UHD Graphics 630

Compatible only with Motherboards based on Intel 300 Series Chipsets

6 Cores / 12 Threads

3.70 GHz up to 4.70 GHz Max Turbo Frequency / 12 MB Cache

Intel Optane Memory Supported

System Ram Type: ddr4_sdram

Specifications

Brand
Intel
Model
BX80684I78700K (Core i7-8700K)
Cores / Threads
6 / 12
Base Frequency
3.70 GHz
Max Turbo Frequency
4.70 GHz
Cache
12 MB
Socket
LGA1151
Compatible Chipsets
Intel 300 Series
Integrated Graphics
Intel UHD Graphics 630
Memory Support
DDR4
Intel Optane Support
Yes
TDP
95W

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Pros & Cons

👍 Pros

  • Unlocked multiplier allows overclocking beyond the 4.7 GHz turbo for additional performance headroom
  • 6 cores and 12 threads handle demanding multi-threaded workloads like streaming while gaming
  • 12 MB cache helps maintain performance in data-intensive tasks
  • Integrated UHD Graphics 630 provides video output without requiring a dedicated GPU

👎 Cons

  • 95W TDP requires a capable aftermarket cooler, especially if overclocking
  • Limited to Intel 300 Series chipset motherboards, offering no forward upgrade path to newer CPU generations
  • Does not include a stock cooler in the box, adding to the total build cost
  • 8th-generation architecture lacks support for PCIe 4.0 and newer platform features

Frequently Asked Questions

It uses the LGA1151 socket and is compatible only with motherboards based on Intel 300 Series chipsets (Z370, Z390, B360, H370, etc.).
Yes. The "K" designation means the multiplier is unlocked, allowing overclocking when paired with a Z-series motherboard.
Yes. It includes Intel UHD Graphics 630, so a system can output video without a discrete GPU.
No. Intel K-series processors do not include a stock cooler; an aftermarket CPU cooler is required.
Yes. With 6 cores and 12 threads, it uses hyper-threading to improve multi-threaded workload performance.