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

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

of AMD Advanced Navi 4X GPUs The RDNA 4 graphics architecture was reportedly going to feature 50% more shader engines than the Navi 31 “RDNA 3” chips.

AMD's canceled RDNA 4 “Navi 4X” GPUs will feature 50% more shader engines than the RDNA 4 “Navi 31” chips.

New patches for AMD's GFX12, seen through Kepler_L2This seems to indicate some significant upgrades on what could be the true successor to AMD's flagship RDNA 3 GPU called Navi 31.

According to the patch, AMD's GFX12 family codenamed the RDNA 4 GPU lineup was reportedly going to feature 9 shader engines on the top Navi 4X or Navi 4C SKUs. These GPUs would have increased the number of shader engines by 50% compared to the Navi 31 chip that came with 6 shader engines.

Image source: Kepler_L2

AMD has two split configurations within its RDNA 3 GPU lineup with the Navi 31 having a total of 16 compute units per shader engine (double compute units per WGP) for a total of 96 compute units while the Navi 32 GPUs have a total of 20 compute units are offered. (double compute units per WGP) for a total of 64 compute units per shader engine.

It is now unknown whether RDNA 4 followed the same shader engine configuration as Navi 31, Navi 32 or went a completely different route but it was reported by a member of the AnandTech forum, Edrock_Thurstonthat 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 real shift in chiplets for consumer-grade gaming GPUs. The following are the configurations that will be using the 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 only theoretical configurations that could be revealed but if true, it seems that AMD was working on a high-end chip that could offer truly exciting levels of performance and capabilities, but it seems that Red The team has developed such plans. A design for reasons we may never know. This could be due to design complications, production, 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 featured in previous reports.. These show what a possible high-end RDNA 4 GPU with multiple GCD chiplets would look like.

Image source: @creper9000

It is also reported that AMD's Navi 48 GPU will feature 4 shader engines (similar to Navi 32) while the Navi 44 will feature 2 shader engines (similar to Navi 33). These two GPUs are already identified as GFX1200 and GFX1201 IPs..

Again, we don't know the exact WGP/CU configuration per SE that AMD might choose with its last remaining RDNA 4 GPUs but Previous rumors have made some interesting claims regarding its performance, you can read more about it here..

AMD RDNA Generational GPU Lineup

Radon lineup Radeon RX 5000 Radeon RX 6000 Radeon RX 7000 Radeon RX 8000
GPU architecture rDNA 1 rDNA 2 RDNA 3 / RDNA 2 rDNA 4
Process node 7 nm 7 nm 5nm/6nm 5nm/3nm?
GPU family Navi 1X Navi 2X Navi 3X Navi 4X
Flagship GPU N/A Navi 21 (5120 SPs) Navi 31 (6144 SPs) Navi 41 (cancelled?)
Advanced GPU Navi 10 (2560 SPs) Navi 22 (2560 SPs) Navi 32 (4096 SPs) Navi 48
Mid-range GPU Navi 12 (2560 SPs) Navi 23 (2048 SPs) Navi 33 (2048 SPs) N/A?
Entry-tier GPU Navi 14 (1536 SPs) Navi 24 (1024 SPs) Navi 34 (1024 SPs)? Navi 44

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