Do you plan to change default power limit on MSI card? As I reported 180 -> Thorttling.
For info about actual 580 Gaming X,
I have found a video of actual card somewhere running in OC mode 1393 mhz. (I think my card cannot
it uses 1175mv default and drops to 1150mv under full load.
We cannot know its tdp because MSI does OC mode Slient mod thing a little different as you might now. So there is no bios, it is just software overclocking.
This is not a problem for me because I underclock to 1150mv anyway, but it might be better for some other users who wants it to just run 1360mhz and don't touch anything.