anexanhume
Veteran
Xbox One X is 359mm^2
Xbox One is 363 mm^2
Vega is 510mm^2
I wouldn't use vega as a baseline for consoles, not the type of architecture that would be successful.
Vega is a 14/16 nm part. There’s going to be a large size reduction in the transition to 7nm by itself. 16FF to 7nm SoC scales down 70% in area. If HPC only scales down 50%, you could fit Vega 64 and have 100mm^2 left for CPU and non-memory I/O. Power scales 60% per TSMC, so the 50% may even be conservative, assuming power density is kept constant.
I suspect we can assume that the power delivery and cooling will be at least as good as last gen. Hopefully as good as the X.
For reference, Zeppelin die minus memory controller is 198mm^2 in 14nm. That would fit inside the leftover budget from above after a 50% shrink.
It’s for these reasons I’m assuming at least one of the next gen consoles will be 12TF or greater.
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