AMD RDNA 3 Navi 31 ‘GFX1100’, Navi 32 ‘GFX1102’, Navi 33 ‘GFX1101’ Discrete GPUs with Display Core Next 3.2, APUs receive DCN 3.1.4

AMD’s RDNA 3 GPUs including Navi 31, Navi 32, Navi 33 and an integrated APU part have been listed in the latest Linux patch.

AMD RDNA 3 Navi 31, Navi 32, Navi 33 with DCN 3.2, RDNA 3 APU gains DCN 3.1.4 support

So far, a total of four AMD RDNA 3 GPUs have been listed in various Linux patches and the LLVN open source repository. These include the Navi 31 ‘GFX1100’, Navi 32 ‘GFX1102’, Navi 33 ‘GFX1101’ and the GFX1103 which will appear as an APU, so likely the version used in the upcoming Phoenix Point APU range. The details have been gathered by Coelacanth-Dream and it looks like we have new information on the DCN or Display Core Next versions each chip will support at launch.

For the RDNA 3 discrete GPU lineup, which includes the AMD Navi 31, Navi 32 and Navi 33 GPUs, the red team will be upgrading from the existing DCN 3.0 engine to the new DCN 3.2.1 engine. The APU, on the other hand, does not use the same version as the discrete RDNA 3 GPU family. It has the same series currently used by the existing RDNA 2 ‘GFX1030’ APU series, dubbed the DCN 3.1.4 series. The AMD Sabrina APU uses the DCN 3.1.6 engine.

In terms of features, it looks like both the DCN 3.2 and DCN 3.1 series will only support four display outputs. This was the standard for RDNA 2 GPUs and will be maintained for the RDNA 3 range as well. Additional information shows that there is now MALL (Memory Access at Last Level) or Infinity Cache support for the RDNA 3 / GFX11 GPU, so don’t expect to see Infinity Cache designs on Phoenix Point APUs.

The AMD Phoenix Point APUs are expected to carry up to 24 compute units, or twice the number of cores compared to existing Rembrandt APUs, so this will be a huge leap in graphics performance for an integrated chip that competes against Intel’s Meteor Lake chips competing will pack up to 192 EUs in a tiled GPU design. In the meantime, the AMD RDNA 3 line of GPUs is shaping up as a worthy contender against NVIDIA’s next-gen Ada Lovelace products, which are expected to be unveiled later this year.