http://www.mindfactory.de/product_info.php/4096MB-XFX-Radeon-RX-480-RS-Aktiv-PCIe-3-0-x16--Retail-_1118478.html
sorry for too much dumb questions
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I am going to use Asrock H81 Pro BTC as motherboard and the ethosdistro for OS.
I do not know how efficient the Rx 480 is for other Algo. What if ETH goes into POS in next year? You may not get back your ROI. It is just my opinion. Coz we need to measure a lot of things before start mining to make a profit.
The RX 480 is not as good as the 1070 for other algorithms. It is even worse than the R9 nano. But it is cheaper.