>>105681945
>but 800W power draw
It's probably staying at 600W, the node shrink will provide some efficiency gains.

>What do you think 6090 specs and improvements over 5090 could be?
I can't say, it will depend on the yield of the larger chips. Probably a minimum of 20%
Yield estimates for a perfect GB202 die are around 57%, 5090 uses a cut-down version so the yields should be a bit higher.