AMD’s High-End Navi 4X “RDNA 4” GPUs Reportedly Featured 9 Shader Engines, 50% More Than Top Navi 31 “RDNA 3” GPU

wccftech.com:

AMD's high-end Navi 4X GPUs featuring the RDNA 4 graphics architecture were reportedly going to feature 50% more shader engines than Navi 31 "RDNA 3" chips.

AMD's Cancelled RDNA 4 "Navi 4X" GPUs Would Have Featured 50% More Shader Engines Than RDNA 4 "Navi 31" Chips

New patches regarding AMD's GFX12, spotted by Kepler_L2, seem to point out some significant upgrades on what could've been a true successor to AMD's flagship RDNA 3 GPU called Navi 31.

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According to the patches, AMD's GFX12 family which is the codename for the RDNA 4 GPU lineup was reportedly going to feature up to 9 Shader Engines on the top Navi 4X or Navi 4C SKU. These GPUs would have marked a 50% uplift in shader engines count over the Navi 31 chip which comes with 6 Shader Engines.

AMD made two split configurations within its RDNA 3 GPU lineup with Navi 31 featuring a total of 16 compute units (Dual Compute Units per WGP) per Shader Engine for a total of 96 compute units while the Navi 32 GPUs offered a total of 20 compute units (Dual Compute Units per WGP) per Shader Engine for a total of 64 compute units.

Now it is not known if RDNA 4 would have followed the same Shader Engine configuration as Navi 31, Navi 32 or gone a completely different route but it is reported by Anandtech Forum member, Adroc_Thurston, that the actual compute units were over 200 for the top Navi 4 "RDNA 4" GPU die.

The GPU was meant to feature 3 GCDs, each with 3 Shader Engines, marking a true shift to chiplets for consumer-grade gaming GPUs. Following is what the configurations would have been using Navi 31 and Navi 32 designs:

• Navi 41 with Navi 31 configuration: 9 Shader Engines, 16 Compute Units, 144 CUs
• Navi 41 with Navi 32 configuration: 9 Shader Engines, 20 Compute Units, 180 CUs
• Navi 41 with 200+ Compute Units: 9 Shader Engines, 24 Compute Units?, 216 CUs?

These are just theoretical configurations that can come up with