Intel just released their seventh generation of CPUs called Kaby Lake. If you read the latest reviews of the new chip sets, the improvement over Skylake is not much. It’s essentially the same CPUs with slightly faster clock speeds. However, the latest chips will have support for 4k media, allowing you to play 4k Netflix. The i7-7700K looks like the direct replacement for the i7-6700K, with higher clocks speeds at 4.2 Ghz and boost at 4.5 Ghz. Benchmarks are slightly higher. If you already own i7-6700K Skylake, there’s no reason to upgrade, but if you own an older CPU, then it makes sense to purchase the i7-7700K for $40 dollars more.