example
same rig /2x7970/ :
vert /cgminer or vertminer/ 520 kHash = 500W
hiro /sgminer -darkcoin alg/ 3,6 - 4Khash = 310W
hiro wins
I have plugged rig into digitally Wattmeter, scrypt takes 580W +
sure. I wouldnt dispute the power efficiency compared to scryptN coins, but more about the actual value of the coin itself given vert is seeming to be the first point of migration for gpu miners due to its popularity