Thanks for posting that, so looks like Crossfire RX480 is faster than SLI GTX970, and better than GTX1070, but below GTX1080.
Good value when compared to SLI GTX970 or a single GTX1080, but seems like a single GTX1070 is the sweet spot compared to two XF GTX480 for people like me who still play a lot of things that aren't DX12.