Core i7-8700K Review: Coffee Lake Brews A Great Gaming CPU

Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.

Grand Theft Auto V, Hitman & Shadow of Mordor

Grand Theft Auto V

Grand Theft Auto V continues to favor Intel architectures and, more generally, multi-core designs. The Core i7-8700K offers 7.6% more performance than the -7700K at stock settings. This grows to a 11.5% lead after some tuning.

Kaby Lake- and Coffee Lake-based Core i7 processors set themselves apart from the pack during our benchmark, specifically offering a 16-25% performance advantage over the Ryzen models at stock settings.

Hitman (2016)

Core i7-7800X finally shows up in the top half of our chart thanks to its effective architecture and 6C/12T configuration. It's still no match for the -8700K, though, probably due to its more conservative 4 GHz Turbo Boost ceiling.

The new -8700K offers the best performance in stock form, demonstrating a 9 FPS advantage over its nearest competitor. Meanwhile, Core i7-7700K turns the tables with a slight lead after overclocking. Given their similar architectures and manually-defined frequencies, a little variance there is expected. Consider the chips to be tied after tuning.

Middle-earth: Shadow of Mordor

The Core i7-8700K surprisingly falls behind its predecessor at stock settings. We examined each chip's Turbo Boost behavior and discovered that the -8700K ran through at a higher frequency. But, like the -7700K, it doesn’t reach peak frequencies. Rather, it drops to lower clock rates throughout our run.

As mentioned at the outset of our performance testing, we saw higher benchmark numbers from the lower-end Core i7-8700 in several games. Coffee Lake and its Z370 platform are new, so perhaps firmware tuning will iron out some of these issues over time.


MORE: Best CPUs


MORE: Intel & AMD Processor Hierarchy


MORE: All CPUs Content

Paul Alcorn
Editor-in-Chief

Paul Alcorn is the Editor-in-Chief for Tom's Hardware US. He also writes news and reviews on CPUs, storage, and enterprise hardware.