One thing is clear, Samsung can't produce the Ampere-based GPUs quick enough or in enough volume so, from the looks of things, NVIDIA will be moving a large chunk of wafer fabrication to TSMC.
The news reached the web today though DigiTimes. And if true that means that NVIDIA likely will slip towards 7nm wafer die production, as expected for a long time in the first place. What also is possible it that the 'update' product like an RTX 3080 with 20GB or other products like the RTX 3050/3060 in the lineup that has not been released just yet move to that TSMC 7nm node.
DigiTimes states Nvidia has already booked high volume production capacity on TSMC’s 7 nm nodes for 2021. TSMC recently lowered the prices on the 7nm wafers and also mentions the choice is made to spread risk that is yield related.
-- Digitimes (online translated) --
It has also been reported that NVIDIA’s previous annual masterpiece RTX 30 series uses Samsung Electronics’ 8nm process at a considerable OEM discount, but will switch to TSMC’s 7nm process in 2021. The order volume is not less. The reason for NVIDIA's transfer of orders is that TSMC's 7nm offer is relatively close to the people, and the other is that it has previously planned to diversify risks to deal with Samsung's 8nm yield problem. The NVIDIA 7nm large order is also one of TSMC's important customers to maintain high-end 7nm capacity utilization in 2021.
NVIDIA Allegedly Moving Ampere to 7nm TSMC in 2021