how about hashrate rx 580 ? still 30 use new driver fix dag or 25-27 ? ty
You should be able to can get 29-30 on 580 (the DAG fix works just fine)
There's not much difference between 580 and 570 (all is same as 480 and 470) especially for dagger-hashimoto (ethash), which is read memory intensive algorithm.
Meaning that the bottleneck is almost always going to be the the memory.