A few days ago there were rumors on the web that card Radeon RX 490 may appear on the market before the end of this year, which in general seemed unlikely.
Now, new evidence emerged about this card. Firstly, the device appeared in PrisGuide catalog, though it may not directly talking about. There adapter release date was listed second half of the year, but there are no parameters.
Second, the source, referring to the Chinese informants, reports that the graphics card Radeon Pro 490 to debut in the new PC Apple Mac Pro in May 2017 . And supposedly it will be based on the GPU Vega. It is unlikely that AMD will release two similar models, the way to targeting several different segments, with almost the same name, but radically different in the parameters. That is, most likely, the RX 490 will also be based on the GPU Vega, which again casts doubt on its entry into the market this year.
On the other hand, AMD could show the accelerator during the broadcast of the event New Horizon and in the sale of the card to hit early next year, which corresponds with many early rumors and leaks.