The GPU of the PlayStation 5 uses the RDNA1.5 architecture and not the RDNA2

The hype around the PlayStation 5 continues to deflate, and it is that after knowing that the Spider-Man Miles Morales will only move to 4K @ 60 FPS through a Performance Mode, where the visual quality is reduced to be possible, we now know that the graphical silicon that gives life to the console uses the RDNA1.5 architecture and not RDNA2. Obviously, there is no such architecture, but it is a reference is that is somewhere in between. This means that it is actually RDNA 1.0 with some improvements that RDNA 2.0 will bring.

This information came directly from Rosario Leonardi, principal engineer of Sony itself, who after spending the whole night playing Ghost of Tsushima, indicated that the graphic architecture of the PlayStation 5 ” is an intermediate path between RDNA 1.0 and RDNA 2.0, with some unique features. ” Unfortunately for him, what should have been a secret by means of a private message, finally turned into a leak.

“I know you are curious, but I am legally obligated to say nothing that is not already public. As you know, the architecture of the PlayStation 5 is an intermediate path between RDNA 1.0 and RDNA 2.0, with some unique features. The PlayStation 4 Pro was also a strange hybrid between GCN2 and GCN4.

RDNA2 is a commercial abbreviation to simplify the market, otherwise, GPUs with completely random features would come out and it would be difficult for the average user to choose. For example, support for RayTracing is not present on any AMD GPU currently on the market. (…) The GPU of the PlayStation 5 is unique, not classifiable as RDNA 1, 2, 3, or 4.

Then, publicly stated: “It is based on RDNA2, but it has some extra features and, I think, one less. That message went wrong, I was tired and I should not have written the things I wrote,” continued the engineer, complaining that he had been insulted by his statements.

Unfortunately, despite the statements, there is a physical material that indicates that the GPU actually uses a microarchitecture called RDNA 1.5 and not RDNA 2.0.

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