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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 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
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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 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.

GC IP Ver GFX ID AMDGPU_FAMILY Type
11.0.0 gfx1100 (Navi31) AMDGPU_FAMILY_GC_11_0_0 (FAMILY_GFX1100) dGPU
11.0.1 gfx1103 AMDGPU_FAMILY_GC_11_0_2 (FAMILY_GFX1103) APU
11.0.2 gfx1102 (Navi32) AMDGPU_FAMILY_GC_11_0_0 (FAMILY_GFX1100) dGPU
11.0.3? gfx1101 (Navi33)? AMDGPU_FAMILY_GC_11_0_0 (FAMILY_GFX1100)? dGPU?
AMD’s GFX1103 RDNA 3 APU was spotted in a recent Linux patch running DCN 3.1.4 engine. (Image credit: Coelacanth Dream)

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 They’re expected to carry up to 24 compute units, or twice the number of cores compared to existing Rembrandt APUs, which will mean a huge leap in graphics performance for an integrated chip they’ll compete with Intel’s Meteor Lake chips that packs up to 192 EUs in a tiled GPU design. Meanwhile, the AMD RDNA 3 GPU lineup is emerging as a worthy contender against NVIDIA’s next-generation Ada Lovelace products, which are expected to be unveiled later this year.

graphics architecture GPU codename Alternate names Architecture product
GFX900 VEG 10 GCN 5.0 RX VEGA / Radeon Pro
GFX902 CROW Ravenridge / Picasso GCN 5.0 Ryzen 2000/3000 (G/GE)
GFX904 VEG 12 GCN 5.0 Vega Pro 20 (MAC)
GFX906 VEG 20 GCN 5.0 Radeon VII / Radeon Pro VII
GFX908 ARCTUR cDNA 1 Instinct MI100
GFX90A Aldebaran cDNA 2 Instinct MI200
GFX909 RAVEN2 GCN 5.0 TB
GFX909 RENOIR GCN 5.0 Ryzen 4000 (H/U/G)
GFX1010 NAVI 10 RNA 1 RX5700/5600(M/XT)
GFX1011 NAVI 12 RNA 1 PRO 5600M (MAC)
GFX1012 GPS 14 RNA 1 RX5500 (M/XT)
GFX1030 GPS 21 Big Navi / Sienna Cichlid RDNA 2 RX 6900/6800 series
GFX1031 Navi 22 Fleet Flounder RDNA 2 RX 6700 series
GFX1032 Navi 23 Dimgray cavefish RDNA 2 RX 6600 series
GFX1033 GPS 24 Beige goby RDNA 2 RX 6500/6400 series
GFX1033 Van Gogh Aerith RDNA 2 steam deck
GFX1036 raphael RDNA 2 Ryzen 7000?
GFX1040 VAN GOGH LITE / Mendocino Green sardines? RDNA 2 Ryzen 7000?
GFX1100 Navi 31 Plum Bonito RNA 3 Radeon RX7900?
GFX1101 GPS 33 RNA 3 Radeon RX7800?
GFX1102 GPS 32 RNA 3 Radeon RX7700?
GFX1103 GPS 3X phoenix point RNA 3 Ryzen 7000 APU?
GFX1200 GPS 4X RNA 4 Radeon RX8000?

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