RX 470/480 8Hz memory gets ~24-25MH/s Etherum. Fury X from what I can tell gets ~29-34Mh/s, though memory has 2x the bandwidth. Would Vega 10 GPU get ~45-50MH since GPU also faster? From rumors, it will have same 512GB/s memory bandwidth as Fury X, though it will use HBM2 rather than HBM1.
I don't think so. Ethereum requires low latency VRAM, Fiji is more powerful than Hawaii, but it has the same hashrate. Vega might excel in other algorithms, but I doubt it's gonna get any more than 35-40Mh in dagger.