The minimum hashrate is:

- DCR1: 1500 GH/s
- SC1: 800 GH/s

The DCR1 is faster because Decred uses a 32-bit Blake256 algorithm, which is faster than the Blake2b algorithm that Sia uses. The chips themselves are very similar.

The power consumption is 500 watts max.

If you pay $0.10 KW/h for electricity, that is $36 per month maximum.