GPU: XB1X has GPU hardware features missing from XB1S, which shouldn't be true for Lockhart.
Features like what? I'm unaware of anything unique to One X.
Sony and MS have traditionally launched a gpu that is equivalent to an AMD in the pipeline. This is consistent with Alberts analogy of a catering service menu.
Not correct. PS4, Pro, One S, and One X all have GPUs that aren't offered as AMD products. And Mr. Panello should only be used as a guide to high level process. By his own admission, he doesn't know the technical details.
In the past these console launched with retail equivalent cards priced at:
PS4 =$350 retail card equivalent.
This alone should be enough to invalidate your logic. Here's a case where GPU itself is 85%+ of the entire MSRP. A $499 XSX could have a 50CU chip by analogy, greater than 11TF even without clock advantage over 5700XT.
(Of course, that's a spurious conclusion, because MSRP is no guide to cost.)
In my scenario 2 5500s would be 316mm2, the cpu would be between 50 and 65mm2 depending on cache. If we go with the larger amount for the cpu so they can dual purpose them in Azure data centers then thats 380mm2 plus room for other goodies.
Your scenario directly contradicts GitHub info. It directly contradicts "insider" claims that 12TF is an RDNA number. It directly contradicts reportage that 12TF is the current performance target. It directly contradicts recent reportage that 12 TF is being hit. It directly contradicts actual measurements of AMD products.
Basically, it takes account of almost no info we have, apart from a portion of the GitHub leak. (And pastebins, but come on.)
It's not a chiplet but more like the PS4 pro design which I would imagine might waste some die space in exchange for a streamlined fabrication method.
The PS4 Pro silicon isn't laid out or made fundamentally different than any other GPU. Cerny's remarks about a "butterfly" are an analogy for laypeople, not a description of a novel process. There's not a special way of doubling CUs that's particularly cheap but wasteful.
where does this 10.2 come from?
The GitHub PS5 has 36 active CUs, implying 40 on chip with some disabled for yield. You can enable them all without doing a redesign. It costs more, but at the 2.0 GHz leaked clock, it's 10.2 TF.