Power usage: TOPS per watt

Coral board promise to support 4 TOPS and 2 TOPS per watt performance.

I found N10 to be similar with 3 TOPS but have not seen how much power NPU consumes per 1 TOPS.

Jetson Nano has switch to select USB power or DC power.
Is possible to power N10 from DC without qualcom’s USB?

I would be able to power with lab power supply and see how much power it consumes in different cases.