If you believe the rumors, then about a month and a half or two months are left before the official announcement of AMD Navi GPUs and Radeon video cards based on them. Of course, with the approach of the announcement, the flow of rumors and leaks regarding future new products also increases. Another batch of rumors reveals the characteristics of the upcoming Radeon RX 3080 graphics card, the successor to the Radeon RX 580.
True, I would immediately like to say a few words about the source of this leak. It is an anonymous resource user who claims to work for AMD and that the information he provides must be at least 99% correct. So how much you can trust such a source, let everyone decide for themselves. We would recommend that you treat the information below with a grain of salt, and then if it turns out to be false, then you will not be disappointed, and if it is confirmed, then you will be pleasantly surprised.
So, according to the source, Navi GPUs are built on a new generation architecture that has replaced the Graphics Core Next (GCN). It will be called Next Generation Geometry (NGG) and will use efficient pixel shading (Draw Stream Binning Rasterizer).
Also, an important difference from the old architecture will be 32 KB of the first level cache, that is, twice as much as it was before. And the volume of the second-level cache of the Navi 10 GPU considered here will be 3076 KB. A 256-bit bus will still be used to connect the memory, however, the bandwidth of the memory subsystem will increase to 410 GB / s, which indicates the use of GDDR6 memory, although slightly slower than in GeForce RTX accelerators.
Unfortunately, the source does not specify the number of computing units of the Navi 10 GPU. Only the GPU clock speed is given, which will be higher than 1,8 GHz in Boost mode. In this case, the TDP level should not exceed 150 watts. Another source notes that the performance of the Radeon RX 3080 graphics card will be at a level between the Radeon RX Vega 56 and GeForce GTX 1080. It sounds somehow not very impressive. But the thing is that this video card will be sold for only $259 (recommended price). This ratio of price and performance makes the novelty a very interesting accelerator for the mass user.
Source: 3dnews.ru