Oh YES [1] . I got the two mixed up. I should have doubled checked. So it is V1.
The V1 design is available in both 7nm and 5nm.
Oh well I guess if AWS had it in 5nm they would have at least marketed it as such. So may be it is the same 7nm.
[1] https://images.anandtech.com/doci/16640/Neoverse_Intro_3.png