Almost three years have passed since I did my original full hardware encoder showdown, and the field has changed drastically since then. NVIDIA brought out the Turing and Ampere architecture, AMD finally designed a useful GPU architecture, and even Intel is entering the market now. Finally no longer a Red vs Green battle, but a Red vs Green vs Blue - the full RGB experience! But also due to that, my data is now well beyond outdated, and its time to refresh.
Unfortunately for me, sourcing hardware for testing purposes right now is near impossible at reasonable prices, so I had to opt for unusual methods to acquire it. Instead of buying a dedicated AMD GPU - which would have been very expensive - I instead opted for a Laptop with Dual-AMD Graphics and an AMD CPU. The latter to fulfill my daily usage needs (compiling software), the former to fulfill testing conditions for video encoding. In any case, it was two flies with one stone - or however that saying goes - and I had what I needed.
So, as it is usual, I drank my coffee as my automated script did what I told it to do. Then I fixed the automated script to actually do what I thought it did, and repeated this charade twice more because it's obviously fun, and I definitely did not forget to put an "s" at the end of a variable reference - twice. Without any further interruptions, here are a few hundred video examples for your watching pleasure.
Update 2022-01-11: Added x264 veryfast files and newly discovered AMF settings that drastically improve quality.