http://wccftech.com/review/intel-core-i7-8700k-core-i5-8600k-core-i5-8400-cpu-review/

Early in 2017, Intel released their brand new Kaby Lake platform, featuring a plethora of CPUs and motherboards. The Kaby Lake platform introduced nothing new over what Skylake and its boards already offered. It was simply part of Intel’s yearly refresh and brought some modest clock speed upgrade and boards with added features (mainly by AIBs rather the chipset itself).

But, a few months after Kaby Lake launched, AMD introduced Ryzen. A significant update to their processor family that not only brought IPC on par with modern Intel cores, but also delivered a mainstream platform with feature level parity with Intel’s mainstream offerings. Ryzen also offered more cores on the mainstream platform, with multi-threading support and the major blow to Intel came in price to performance. Ryzen had done one thing, it had obliterated Intel’s long running reign in the mainstream market by itself, we won’t even mention Threadripper here as that is a whole another story.