Specs? Simple. The average gamer needs to forget the teraflop talk. They just do. There's no sense in saying "my 12TF console smashes your 10.3TF console". Here's the point — that is meaningless. As a tech guy with a PC that eats them both for breakfast, I'm excited for both devices, particularly the PS5 as it is doing some things a little different than even I expected and because I expect Sony to push it more than Microsoft pushes the Series X. The inner workings of both machines is still very comparable and uses a series of modern techniques to get things done.
Besides, even though the technical jargon is wonderful to discuss, the games are what will do the real talking. In that regard, I don't expect major differences with multiplats, but there will be HUGE leaps (yes, mark that) with the exclusives.
Teraflops reminds me of the bit wars of the early to mid 90's. Or Genesis with its blast processing.