note: AMD is rumoured to produce one semi custom soc (known as Magnus) for Microsoft. this will act as a series x2 & likely first party by Microsoft with full back compat but could dual boot to steam
amd is also producing a (premium) laptop soc known as medusa premium — that would arrive later. this should be used in PC handhelds, as the z3 extreme. & also likely Steam box like NUCs made by third party board partners. this will defacto be the series S2 (but effectively just a normal PC like steam box)
then there is new cloud infrastructure which would virtualize into multiple series "s2 instances"
so these are the chips that AMD is making for Microsoft
- 50xt AT4 (medusa premium) — series s2 = 9060xt (ps5 pro)
- 70xt AT2 (magnus) — series x2 = 3x series s2 (3x ps5 pro)
- 99xt AT0 (xcloud server chip) = 8x series s2 (8x ps5 pro)
- 80xt AT1 (scrapped) — Microsoft has no use for such a chip
- 60xt AT3 (Medusa halo) — AI box like DGX Spark = 2x series S2 (2x ps5 pro)
the AT0 above is unlikely to be released as a full fledged gaming card
instead we can expect cut down versions with 6x series s2 (6x ps5 pro) or less performance
for reference ps5 pro = 9060xt
AT4 could reach 9060xt depending on power budget
since AT2 is 3x AT4, it would be somewhere between 5070 ti & (unreleased) 5070 ti super