Today we have already written Radeon RX 670 and RX 680 video cards, which should be the first representatives of the Navi generation. According to the data, these cards will debut in the third quarter of next year and will be based on a seven-meter GPU.
Now the web has information directly on the first AMD GPU of the Navi generation. The source states that it will be the Navi 12 GPU, although previously they spoke of Navi 10. The same Navi 10 was canceled or will be released later.
Navi 12 GPU will receive 40 units Compute Unit (CU), but it is still unclear how many stream processors there will be. The fact is that the Navi generation will be the bearer of a true AMD architecture, which will replace the GCN (Graphics Core Next) architecture. GCN, remember, debuted for another Radeon HD 7000 family of video cards in 2012.
Therefore, it is not yet known what the CU configuration will be. If each block includes the same 64 stream processors as in the case of GCN, then it turns out that Navi 12 will have 2560 stream processors. But the configuration could be different.
In terms of performance, the Navi 12-based video card will presumably be around the Radeon RX Vega 56 level. Radeon RX 680 and RX 670 video cards are likely to be based on Navi 12 GPUs. adapters in the second half of 2019 or at the beginning of 2020.