Wish I could tell you definitively. I can't find my kill-a-watt since my move, just ordered another one.

What I've read is 190-250W and I am running at a 10% reduction. So, maybe 171-225W?

GPU-Z doesn't spit out a total GPU power number (lacking sensors?) but the VDDC power for my R9s is running around 63W on average.