AMD is working on a full stack of Zen 5 "Ryzen" CPU families including Granite Ridge, Fire Range, Strix Halo, Strix & Krackan. These families will target various desktop and mobile platforms with chiplet and monolithic offerings.
27.04.2024 - 12:25 / wccftech.com / Hassan Mujtaba
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.
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.
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:
These are just theoretical configurations that can come up with but if true, then it looks like AMD was working on a high-end chip that could have offered real enthusiast-grade performance and capabilities, but it looks like the red team canned plans for such a design due to reasons which we may never know. It could be due to design complications, yields, or even cost but we can't say for sure.
Renders based on the rumored die configuration of the Navi 4X (Navi 4C) chiplet GPU were also showcased in previous reports. These show what a possible high-end RDNA 4 GPU with multiple GCD chiplets would have looked like.
It is also reported that AMD's Navi 48 GPU is expected to feature 4 Shader Engines (Same as Navi 32) while Navi 44 will feature 2 Shader Engines (Same as Navi 33). These two GPUs are identified
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