El Chapuzas Informatico published a review of Coffee Lake Refresh processor almost 3 weeks ahead of expected launch.

Intel Core i7-9700K: 8-cores and no Hyper-Threading

We have been asked by our Spanish friends to share a story with you. Apparently, they managed to secure an engineering sample of yet unreleased Intel Core i7-9700K processor and thought it would be a good idea to test it.

What makes this particular leak interesting is the fact that they even used an unnamed Z390 motherboard (to protect their source).

When it comes to overclocking, the CPU only managed to hit 5.0 GHz at 1.4V, which is probably not as high as we expected. We were told to share as many charts as we like, but I encourage you to check the full review as we are only sharing three.

Intel Core i7-9700K stock and overclocked:

Source: El Chapuzas Informatico