Alright, alright, I already know what you are pondering—you do not care what the brand new GPUs appear like so long as they carry out. The factor is, these renders really can provide us some perspective on what to anticipate from every of AMD’s next-gen Radeon GPUs.
The unique renders really embody textual content over them labeling what every chip is in addition to its capabilities. Right here we now have pictured Wild_C’s finest guess at what Navi 31 will appear like. The GCD consists of six shader engines (SE), every with two shader arrays (SA) comprising 4 workgroup processors (WGP). Holding in thoughts that the WGP has been doubled in width in comparison with RDNA 2, that offers us a complete of 12,288 shaders.
Surrounding the Navi 31 Graphics Compute Die (GCD) are six Reminiscence Controller Cube (or Reminiscence and Cache Cube, relying on who you ask.) These little chips every have a pair of 32-bit GDDR6 reminiscence controllers and 32MB of Infinity Cache, labeled with the lovable abbreviation “Inf$”. $ is learn as “money”, which seems like “cache”, if you happen to did not get it.
Navi 31 is anticipated to make use of a smaller GCD with 4 shader engines, just like the Navi 21 die used within the Radeon RX 6800 and bigger RX 6000-series GPUs. Nevertheless, due to the aforementioned doubling of WGP density, it’ll have double the shader rely. It will get 4 MCDs, giving it a really respectable 256-bit reminiscence bus and 128 MB of Infinity Cache—at the very least on fashions with out 3D V-Cache.
Lastly, the Navi 33 processor is anticipated to be a monolithic design. Whereas it appears to be like surprisingly giant within the comparability render above, Wild_C notes that he expects it to make use of TSMC’s N6 course of as a substitute of the newer N5. Regardless of the distinction of just one digit, N6 is definitely a refinement of the older N7 course of, and there’s a fairly huge distinction in transistor density between the 2.
Going by rumors, Navi 33 may have two RDNA 3 shader engines, giving it a complete of 16 WGPs for a most of 4096 shaders. It is anticipated to have as much as 128 MB of Infinity Cache, like Navi 32. Wild_C predicts that Navi 33 can be restricted a PCIe 5.0 x8 interface, which is one thing we have seen elsewhere. It appears affordable sufficient, though it might restrict efficiency on machines nonetheless restricted to PCIe 3.0. Then once more, the CPU in such a system is more likely to be bottleneck sufficient for a next-generation GPU.
