Tech outlet Angstronomics has a very detailed roundup published regarding the specifications of AMD’s RDNA 3 GPUs such as the Navi 31, Navi 32, and Navi 33 chips that will go on to power their next-gen Radeon RX 7000 series graphics cards.
AMD Navi 31, Navi 32, Navi 33 “RDNA 3” GPUs For Radeon RX 7000 Series Graphics Cards Detailed
Previously leaked information within the Linux patches has revealed that there are going to be at least four RDNA 3 IPs that will be launched for the consumer segment. These include Navi 31, Navi 32, Navi 33, and an APU design.
GC IP VER | GFX ID | AMDGPU_FAMILY (via Coelacanth-Dream) | 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? |
Now Angstronomics has reported information such as die sizes, GPU configurations, and features that may end up in the final retail products. An interesting statement by the tech outlet has been made which reveals that configurations for Navi 3X GPUs were first formulated in 2019 and then finalized sometime in 2020. These specifications have not been changed since however, various rumors have pointed out two different specifications for the GPUs which means that either AMD has in fact made changes since their final designs or those rumors were simply not aligned with the truth. With that said, let’s see what sort of configurations we can expect with the Navi 3x “RDNA 3” GPU lineup.
AMD confirmed that its RDNA 3 GPUs will be coming later this year with a huge performance uplift. The company’s Senior Vice President of Engineering, Radeon Technologies Group, David Wang, said that the next-gen GPUs for Radeon RX 7000 series will offer over 50% performance per watt uplift vs the existing RDNA 2 GPUs. Some of the key features of the RDNA 3 GPUs highlighted by AMD will include:
- 5nm Process Node
- Advanced Chiplet Packaging
- Rearchitected Compute Unit
- Optimized Graphics Pipeline
- Next-Gen AMD Infinity Cache
- 50% Perf/Watt vs RDNA 2
Gamers should expect fluid 4K gaming to be buttery smooth on these graphics cards and with the FidelityFX suite offering next-gen FSR, SAS, and SAM support, we might even see playable 60 FPS at 8K resolution.
AMD Navi 31 “Plum Bonito” GPU Configuration
The AMD Navi 31 GPU, the flagship RDNA 3 chip, would power the next-gen enthusiast cards such as the Radeon RX 7900 XT graphics card. We have heard that AMD will drop CU (Compute Units) in favor of WGP (Work Group Processors) on its next-gen RDNA 3 GPUs. Each WGP will house dual CU (Compute Units) but with twice the SIMD32 clusters as opposed to just 2 on each CU within RDNA 2. Rumors are that AMD has the option to select between Samsung and TSMC for the 6nm die.
- AMD Navi 31: 12288 Cores, 384-bit Bus, 192 MB Infinity Cache, 308mm2 GPU Die @5nm
- AMD Navi 21: 5120 Cores, 384-bit Bus, 128 MB Infinity Cache, 520mm2 GPU Die @7nm
According to the latest information, the AMD Navi 31 GPU with RDNA 3 architecture is expected to offer a single GCD with 48 WGPs, 12 SAs, and 6 SEs. This will give out a total of 12,288 SPs or stream processors. This is an increase of 2.4x in cores compared to the 5120 SPs featured on the Navi 21 GPU. The GPU or the Navi 31 GCD is said to measure 308mm2 and will come packaged on TSMC’s 5nm process node.
The Navi 31 GPU will also carry 6 MCD’s which will feature 16 MB Infinity Cache per die and are also likely to carry the 64-bit (32-bit x 2) memory controllers that will provide the chip with a 384-bit bus interface. While this equals 96 MB of Infinity Cache which is lower than the 128 MB featured on the current Navi 21 GPUs, there’s also a 3D-Stacked solution in the works which was pointed out recently and that would double the…
Read More: AMD RDNA 3 GPUs For Radeon RX 7000 Graphics Cards Detailed