AMD bets on RDNA 5 chiplets for next-gen graphics leap

AMD seems to be implementing a fresh chiplet-based strategy with its Radeon RDNA 5 GPU lineup. Reportedly, AMD can now leverage the same GPU chiplets to manufacture discrete GPUs, console SOCs, and PC APUs (which are CPUs with powerful integrated graphics).

The “GMD” (graphics memory die) chiplets by AMD are said to incorporate Shader Engines (SE), Compute Units (CU), Caches, and Memory Controllers (MC). For discrete GPUs, these chipsets can connect to PC chiplets that have video/media engines, PCIe connectivity, and additional features. Based on AMD’s requirements, they can link the same GPU/GMD chiplet to various chiplets to produce discrete GPUs, console chips, Ryzen CPUs, or other components. It’s important to note that this suggests future consoles might utilize the same GPU silicon as upcoming AMD discrete GPUs.

This modular strategy could revolutionize AMD’s approach. Firstly, it allows AMD to deploy the same GPU chiplet across an array of products. By using one chiplet for multiple applications, AMD could greatly minimize its design and manufacturing expenses.

3DCenter has speculated that this method might facilitate the production of GPUs featuring multiple GPU chiplets in the future. However, notable leaker Kepler_L2 has indicated that AMD does not intend to pursue this with RDNA 5.

This modular methodology provides AMD with a degree of flexibility that rivals may not possess. If AMD can use the same GMD for both discrete GPUs and APUs, it could considerably streamline AMD’s product lineup. Rather than developing separate high-quality discrete GPUs and integrated graphics solutions, AMD only needs to create one exceptional GPU that can cater to both segments. Likewise, AMD only has to design a singular outstanding CPU chiplet that can function with both dedicated CPUs and APUs.

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