Economics of 14nm mass production behind the decision, suggests report. Information, including a block diagram for the Intel Z390 chipset has leaked. Tech site Guru3D shared the Z390 info, gathered from a Chinese source, and compared it to the existing Z370 specs to find only minor changes. Thus it is hoped that the upcoming 8-core Coffee lake CPUs will work fine on the Z370 chipset.

According to the report, Intel Z390 based motherboards will support all Coffee Lake desktop processors, and will also be compatible with the next-generation. The main difference with Z390 is that end users will benefit from the provision of some more external controllers such as those from ASMedia. Furthermore, it could have some "heftier CPU VRM specifications, to cope better with its upcoming 8-core LGA1151 processors," it is thought.