The thing works by linking an AMD graphics card with a neural processing unit via “PowerColor GUI,” resulting in rather impressive efficiency gains.
So, how does it actually work? „Linking“ is too vague to explain anything.
The only thing I can imagine is some sort of upscaling from a lower resolution, which is hardly revolutionary.
Journey. You can get it on PlayStation, iOS, steam (on sale for $5 atm) and epic. It is 2-3 hours short and not very challenging, but it does look absolutely stunning and has a very beautiful gameplay mechanic that you better find out for yourself. IMO it is one of the best games of all time and one that really demonstrates what the medium is capable of.