I didn't monitor so far the TDP of the amd (can't in MSI AB just realise I can do that with HWinfo), but with a card running at 60°C it shouldn't be high.
For some reason, everybody seems to think that the R9 290x is a very power hungry card, but it is rated 250W.
Clearly, past generation amd may have been huge electron suckers but that doesn't seem to be the case for this one
Pretty sure it can peak to 300W, and that's without overclock...
But yes, my GTX 780 has a 250W rating too...
I thought AMD has a different way to rate watts however...