In either case, it's impossible AFAICS.
For a 4 TFLOP GPU to emulate a 6 TFLOP GPU, you'd have to assume the 6 TFLOPs GPU is always occupying significantly less than 66% of its shader processors. Which I find it very hard to believe in a console, especially with AAA games.
RDNA is a lot more efficient and it wouldn't surprise me if MS tweeks it to be more so when running XO games.
I would argue that the TF of Lockhart is the most consistent spec of this entire rumor cycle.
It’s not as exciting of a product, so people are less incentivized to invent bullshit numbers for it, IMO.
But when it came out, the number thrown out was 4, not because they knew the actual figure but because it was like the 4pro.
Since then, everyone has just used the 4 figure.
Am I saying I think it's 6, no. Just saying that I think it will be whatever is required to run in 1X mode. Unlike others I don't care if the TF number is less than 6.
If a cross gen game has no next gen code paths, it just runs like 1X. Xsx I think will run unpatched games better, bit like 1X. Maybe force better AA, and maybe twice the resolution and down sample even if it's to 4K. That would be nice but may not be likely... Xsx will be able run every graphic setting option that lots of games have maxed out though.
When there is next gen patch, then Lockhart would run that. At lower than xsx res.
1X will be similar res as Lockhart but won't look as good due to the game actually making use of the RDNA features like VRS, RT etc. Resolution may even be slightly worse than 1X but graphically will look better, and when you also factor in SSD, assets, difference CPU makes etc will feel like different experience to 1X.