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. Related Story AMD EPYC 4004 “Zen 4” CPUs For AM5 Spotted At eBay, Come In 3D V-Cache “X” Flavors TooAccording 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.