Just for reference: Radeon R9 270(x) graphics card (~ 470 KH/s) owners can mine up to ONE BLOCK PER HOUR at the moment.
Just for reference: Radeon R9 290 graphics card (~ 860 KH/s) owners can mine up to TWO BLOCKS PER HOUR at the moment.
hummm, this worries me.
I have an r9 280x , close to 630 KH/s, but I'm not getting 1,5 block worth ....
Any sugestions?