Anandtech: The AnandTech Coffee Lake Review: Initial Numbers on the Core i7-8700K and Core i5-8400 Tom's Hardware: Core i7-8700K Review: Coffee Lake Brews A Great Gaming CPU Ars Technica: Intel Coffee Lake Core i7-8700K review: The best gaming CPU you can buy TweakTown: Intel CPUs Intel Core i7-8700K and i5-8400 Coffee Lake CPU Review The results are pretty much what you'd expect. Single core performance is pretty similar to Kaby Lake. But, while the 8700k has a slightly higher turbo frequency, the extra cores make it harder to reliably maintain performance, probably due to down-clocking and core switching. This is similar to some of the challenges the Ryzen faced, and can probably be mitigated a bit with CPU driver and Windows scheduler improvements. Still, we didn't see a dramatic shift with the Ryzen, and I don't expect to here. The extra cores obviously do help in most situations. Gaming performance appears to be generally up, though in practice I think you'd be hard-pressed to notice a difference over the 7700k. The big difference is really in highly-threaded applications, like rendering and encoding, where the extra cores nearly destroy the advantage the Ryzen's had. I still think the Ryzen is an impressive chip, but this certainly puts the pressure on AMD to drop prices. The current $100 price cuts for the 1800X an 1700X will presumably be made permanent, and I think they'll have to cut the 1600 and 1500 chips, too. But, the Ryzen chips are probably pretty expensive, due to their large die size. And given that AMD has to contract out fabrication, I wonder how much flexibility they have on price.