I can only assume the tiles align with Intel's presentation:
That would be a perfectly reasonable assumption. Unfortunately, reasonable does not mean correct, in this case.
I've said it before, but the big center die is SoC, right is GPU, upper left is CPU, and lower left is additional IO.
If the large tile is the SOC, then why did it double in size? Someone in this thread hinted that there are also unannounced CPU cores in the SOC (in addition to the CPU tile)--but said so with no public evidence. I can't buy that until there is some sort of evidence. Or maybe Intel is adding something else that we don't yet know.
It's more than just the PCH. It's basically everything except (most) CPU cores, GPU cores, and a little bit of the IO.
The argument for it being the GPU is that it fits the rumored 192 EUs pretty well. 192 EUs is 6 times the 32 EUs of Alder Lake.
I think the GPU in these images is 64EU (
maybe 32?
). Not 100% sure though. But definitely not 192EU, at any rate.