https://wccftech.com/amd-zen-3-cpus-7nm-plus-euv-20-percent-higher-transistor-density/

AMD Zen 3 based processors which would be arriving next year and utilize TSMC’s next-generation 7nm+ process node could feature higher transistor density than Zen 2 that arrives this year. AMD’s Zen 3 architecture would be featured across a wide variety of Ryzen, Ryzen Threadripper and EPYC series processors, utilizing the advanced TSMC 7nm+ node that takes advanced of the EUV tech.

In a report published by PCGamesN, it is mentioned that AMD’s Zen 3 architecture is going to get a major transistor density boost thanks to the TSMC 7nm+ process node. Unlike the Zen 2 CPUs that utilize the TSMC 7nm node, the 7nm+ node utilizes the advanced EUV technology which would be ready for volume production in the second quarter of 2019, as reported by DigiTimes.