https://wccftech.com/amd-7nm-wafer-production-set-to-double-in-2h-2020-7nm-capacity-at-tsmc-currently-fully-booked/

Taiwan's leading tech magazine has just broken a story that will be sure to make investors of AMD very happy. TSMC is expecting 7nm orders from AMD to double in 2H 2020 as Apple transitions from 7nm to 5nm, leaving behind a vacuum that AMD is going to be filling in. TSMC expects AMD to become the largest customer for 7nm processors starting 2H 2020 and this means that AMD's sales are going to go through the roof starting in 2H 2020.

This is around the same time frame that Intel will be rolling out its first 10nm chips (if all goes according to plan). Unfortunately, however, it seems that TSMC capacity for 7nm is currently fully booked and we may not expect AMD to increase its supply of 7nm parts before Apple moves on. Before I go any further, here is a translation of the relevant portions by @chiakokhua reproduced with permission: