Fury draws at least 40W+ on an 80+ certified ATX PSU, closer to 50W on these "industrial" types that are less efficient. ~4A at 12V.
22W might be when it's idle perhaps?
Yes, they draw half power when idle. The fan itself should draw up to 8w depending on the build quality. I haven't found the data sheet.
My mistake both on idle and math, I have corrected my post.
The stock Fury at idle draws 1.8a or 22w, hashing draws: 3.8a or 46w per measurements.
Thanks!