Boxx Apexx S3 workstation takes Coffee Lake to 4.8 GHz
 

Right now, the only chips based on the six-core die used in the Core i7-8700K are the series of Coffee Lake desktop CPUs to which it belongs. If you want the absolute top single-threaded performance, it's gotta be a Coffee Lake CPU. For professional users that don't necessarily need the assurance of ECC memory, a Coffee Lake-based machine like Boxx's Apexx S3 could provide the maximum performance on the market right now.

http://techreport.com/news/32812/box...ake-to-4-8-ghz