I will let you know when I get home from work today but I believe it is

i - 19
w - 256
gpu - 1213
mem - 1400
powertune - -20
tc - 10239
kernel - darkcoin

I am pretty sure that is correct. Again I will let you know later.

I also think my gigabyte r9 270x are pretty damn nice because I clocked it up to 1273 and it was running at over 1400 pre miner update. 1 of my 4 will crash at this level but 3/4 can do it.