I aim for efficiency. We have expensive electricity. GPU is no go as written in my benchmark posts.
I am experimenting with CPU now. CPU at full load with 100W is always better than a lightly loaded CPU at 50W and 80W GPU
Basic system will always eat up 50W no matter what…we have no CPU/RAMless PC yet
There is some info in Chia’s first announcement, but it looks obsolete now and inaccurate.
There are some test with 2-128 threads CPUs