AMD Navi is the next generation graphic architecture, and this call to follow the architecture Vega, which uses the 7 nm manufacturing process. Originally planned for mid-2019, probably near Computex (early June).
Cowcotland reports that AMD has postponed its Navi launch plans to the fourth quarter of 2019. The delay probably has to do with AMD’s 7 nm manufacturing split for the year.
AMD Navi delayed
AMD currently relies entirely on TSMC (Taiwan Semiconductor Manufacturing Company) to manufacture its 7 nm products. This roadmap includes the second generation of EPYC and the third generation of Ryzen processors based on the Zen 2 architecture and, to a lesser extent, GPUs based on the second generation of Vega, such as the latest Radeon VII.
The first Navi GPUs should be a lightweight, fast product that replaces the Polaris 30 architecture and could include faster SIMD units, higher clock frequencies and cheaper memories such as GDDR6 in addition to the 7 nm.