https://wccftech.com/intel-z370-rebadge-z390-8th-gen-compatible/

There’s a new rumor regarding the Intel Z390 platform which will be launched around the same time as the Coffee Lake refresh processors in Q3 2018. According to a report from Benchlife, the Z390 products will actually be based on the existing Z370 PCH.

If we take a look at the differences between the Intel Z370 and Z390 PCH, we won’t see major differences. All of Intel 300 series chipsets excluding the Intel Z370 are based on a 14nm node while the Z370 itself is based on a 22nm process node. Aside from that, the Intel Z390, just like other 300-series chipsets based on the 14nm process, features support for USB 3.1 Gen 2.0 and Wireless AC 802.11 AC plus Bluetooth 5.0 support.