AMD's next-generation rDNA 2 GPU architecture will support hardware ray tracing, which has been officially confirmed, but the details have never been known. It seems that AMD will take a similar approach to NVIDIA Turing family. According to the news,AMD RDNA 2 series will have three different cores at the high and low end, named as the Navi 21、Navi 22、Navi 23, core area is about 505,304,240 square millimeters, and the error ±5 square millimeters.
The first and only photo released by AMD
According to the source,RDNA 2 family will only support optical pursuit in flagship and high-end models. A special hardware unit is built in, i.e. corresponding to Navi 21. However, the medium and low-end cards do not have optical pursuit, so they pay more attention to improving energy efficiencyThat is to achieve the highest performance with the lowest power consumption.
Of course, it's not too surprising. After all, the resource consumption of optical pursuit is very large. The high-end card is still laborious, and the low-end card can't bear it at all. NVIDIA does the same.
It doesn't rule out that AMD will also be like NVIDIA's treatment of the low-end GTX 16 series. In the later stage, it will support light pursuit through drive update, but as you can see, it's only symbolic support, which is not practical at all.
Maybe AMD will give different names to Navi 21 and nvai 22 / 23 core graphics cardsAnyway, the a card model has become enough in recent years.
According to AMD, the energy efficiency of rDNA copulation is 50% higher than that of GCN architecture, and rDNA 2 will be 50% higher than that of rDNA.
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