According to the rumour, both the AMD Radeon RX570 and RX580 will have a Polaris 30 based successor. The naming convention hasn’t been finalised yet, but the cards are coming. The RX570 successor will feature 2048 cores, same as the RX570, but with a higher clock-speed thanks to the use of 12nm manufacturing process. The card will retain its 8GB GDDR5 memory along with the 256-bit bus interface. The RX 570 successor is expected to launch sometime around October 12-15 for an estimated price of $200.
The other new graphics card from the red camp would be the successor to the RX580, expected later this year in November. The card is expected to get the same minor improvements in clock speed and power efficiency. The source says that the graphics architecture isn’t getting any changes, and the only factor leading to any improvements is the 12n manufacturing process.