The massive multi-threaded consumer CPU war is now starting thanks to AMD hitting Intel where it hurts with Ryzen and hitting 8C/16T @ $499... but Ryzen ThreadRipper with up to 16C/32T is on the way, so the preemptive strike from Intel with Core i9 happened.
Now we're seeing the first review of Intel's upcoming Core i9-7900X, their new X299-based Core-X series processor with 10C/20T of CPU performance that seems to perform well, overclock well, but is priced pretty high. Hexus has published their review from an Intel CPU sample that was not provided to them by Intel - so they could throw the review online and not worry about Intel's legal team emailing them saying they've broken NDA.
We can see that the fresh X299 chipset needs some more time to mature, but we have some gaming and overclocking charts for you to gander over - and consider buying the 10C/20T chip in the form of the Core i9-7900X over the upcoming Ryzen ThreadRipper range from AMD. My tip: wait.