I will not give any numerical data, and I will explain the reason.
As you will understand, it is not information I can give. Not even any developer with two front fingers will tell you, it would mean being fired automatically and facing possible legal consequences. If a developer gives you that information, it's not very smart. On the other hand, when I registered, I wanted to make it very clear in my presentation message that I did not come here to give information that could commit me or someone.
Likewise, it is true that it doesn't matter what I can tell you, I mean that I would not get you out of doubt, because the information I may have is current. That is, it is not the definitive one (which does not mean that there is no such definitive information, I simply do not know it).
What I can say is that you are making films of biblical proportions and based on data that, if true, were 1 year ago in a given circumstance. But do you really believe that real data is filtered? And I understand that this is because of the lack of information, and if there is no information, then people make it up based on personal interests. And you have to understand that many people are interested in generating interest and debate, for example by publishing something and deleting it at the moment. Guys, we already have an age to know how this works.
First, what TF? The TF of Marketing? Or the effective TF? I understand that people need to know (and I need to explain, but I have to bite my nails) but what you really should care to know is that, in practice, one could have more TF than the other and give less performance. You should think less about TF and think more about machine balance.
This generation will NOT be the generation of the visual difference that makes you decide what to buy. It will be the generation of the games. Yes, one will be faster than another (but you will not notice it in practice). One will load the screen in 10 seconds and the other in 7 seconds. One will have a better sound than the other. One will run the game at 60fps and the other ... too. What will really matter will be the quality that development studies can achieve with their time and budget.
What you will have to do this generation is to think what game you want and what platform it is on. And if it is for multiplatform games, buy the cheapest one or where you have more friends, because you will not notice the difference (yes, there are people who are able to perceive a laser pointer on the moon, and others like to play 30cm from the TV trying to find out if the 4K is native or scaled by switching quickly between different video inputs to find out the difference to justify their purchase, but those people are not happy. Fortunately, those people will have it very difficult in the next generation... in multiplatform games).
(And yes, PC graphics cards will always be better. And also much more expensive and less exploited. What happens is that NOT all games are on PC. For those who have forgotten, this is the key, the games).
The new consoles will not disappoint. Not me, at least.
I'm sorry, I don't have more time for now.
Cheers.