The problem with the AMD miner is that AMD itself does not do well with memory calculations
Are you sure?
When I say memory calculations, it's more to do with the algorithm, argon2. AMD just doesn't seem to perform as well as Nvidia
Well most of time it depends on the quality of the miner.
In the begin from ETH u should use nvidia, well the amd miners working at the same level or even beter now.
Also at the begin from the X** algo and XEVAN, AMD was pretty better with the SGminer in compare with CCminer for NVIDIA. Now CCminer is much beter then SGminer.. On all those coins the biggest changemaker is the miner.
So i hope that somebody inside Arionum can do a nice job for the AMD GPU miner.
Anyway, fork is comming soon! 101 blocks to go! I guess this fork will be today (well here its 8:00 in the morning now so).
Edit: i saw the last few days the mining rewards are 1/3 in compare the days before. Is this because of an growing netspeed or? Ah and i see the price is start to grow, not bad at all