CPU Performance
The salient point to remember in the CPU tests is that the Core i7-7700K operates at an all-core frequency of 4.2GHz and single core at 4.5GHz, up from the 4.0/4.2GHz for the Skylake sixth-generation chip.
It's easy to see that frequency is all that separates these two quad-core chips. We proved this empircally by running the Core i7-6700K at the same frequencies as the Kaby Lake and found performance to be within one per cent.
From a CPU perspective, then, Kaby Lake is merely a faster-clocked iteration of Skylake.
