In August 2017, Intel announced their 8th generation Core processors. When it comes to laptops, this generation is also know as Kaby Lake R and Coffee Lake.
The Kaby Lake R are energy-efficient Core i5 and i7 processors, that have 4 cores. They're 40% faster than their dual-core predecessors. Kaby Lake R is a typical ultrabook processor, which is suitable for longer period of time and demanding programs.
The Coffee Lake processors are 4-core i3 processors and 6-core i5 and i7 processors. They are faster, but also less efficient. Coffee Lake guarantees a powerful performance, and is suitable for demanding tasks like gaming and video rendering.