Interestingly, the rumor indicates Ampere will not be manufactured by TSMC but by Samsung. Ampere is believed to be NVIDIA's first 7nm chip and the production process will reportedly use EUV:
NVIDIA will reportedly be using Samsung's new 7nm extreme ultraviolet lithography (EUV) process that uses a plasma laser to drive silicon material into 7nm transistor structures. The new GeForce RTX and Quadro RTX graphics cards are both made on the 12nm process thanks to TSMC, with NVIDIA no stranger to working with Samsung for GPU production.