Re: 2 * 1060 6Gig or 1 * 1070 or 1* rx580

Two 1060's will have a better hash rate than one 1070 or one RX 580, except when dual mining. TDP on 1060's is good as well <100 W. If you can get two 1060's for the price of one 1070 or one RX 580, then get that.

Im think about DAG for 6Gig. somone says 6Gig is worst is he right?

Thanks

The Dag size is not even an issue for the foreseeable future. The Dag won't even reach 3 GB until early next year and 4GB until 2019.

If Dag size not issue I can Buy 2*480 with my money
but

It says Dag for RX is too bad what you think ?

The issue that chart is reflecting is the future epoch benchmark hash rate drop that the Claymore ETH miner shows affecting the AMD Polaris line (RX 4XX and 5XX) cards. It affects 4GB and 8GB Polaris cards about the same. As of now, there are conflicting reports as to if it's an issue with the Claymore miner or an issue with the hardware architecture of AMD cards. Nvidia GTX 10 series cards are not shown to be affected by the same issue, which is what is reflected in the chart.

So Im confused about that I can buy 2*1060 or Can buy 2*480 but Im worry about dag size

Then buy the 1060's. As i said the Nvidia cards are not affected by the future epoch hash drop and the ETH Dag file won't even reach 4GB until 2019. Otherwise ETH will almost surely go in to a hybrid POS/POW model before the end of the year, so it's really only an issue with other coins based on the ETH algorithm.