The only thing we do know about “intelligence” is that more compute = better performance on tasks we use to evaluate increasing generalization on tasks.
So map out the computing power and hardware requirements of an average adult human with IQ 100 and no disabilities and that should tell you what you need.
I don't think that's even true. Where are you getting this? I can create an extremely compute heavy model that performs very poorly. Just adding more compute does not mean better performance on its own.
Given the same model too much compute can even mean over-fitting and worse generalization. It doesn't all come down to compute.
So map out the computing power and hardware requirements of an average adult human with IQ 100 and no disabilities and that should tell you what you need.
It’s probably 3x harder than just a brain.