A series of brand new rumors regarding the AMD RDNA 3 and RDNA 4 GPUs that will power next-gen Radeon RX graphics cards have been leaked by Moore's Law Is Dead. The insider talks mainly about the RDNA 3 GPUs but also give a slight update on RDNA 4 GPUs, both of which will feature MCM chip designs.

AMD RDNA 3 & RDNA 4 GPU Rumors For Next-Gen Radeon RX Series Graphics Cards: Higher Prices, Higher Performance, 2H 2022 Launch

MLID starts straight off by talking about the performance estimates and we have had several of those for a while now. We have seen previous rumors claiming a performance increase of up to 2.5x for RDNA 3 over RDNA 2 and MLID states that AMD was always targetting greater than 50% performance increase over the Radeon RX 6900 XT graphics card with its RDNA 3 architecture.

AMD Radeon RX 7000 (RDNA 3) GPU rumors state higher performance & higher-pricing per tier. (Image Source: MLID)

He states that he is confident that AMD will be able to achieve a performance improvement of 60% at a minimum but also states that theoretical top performance and real-world performance aren't the same things. This is MLID basically talking about that 2.5x improvement figure from earlier and that it could be based on a certain simulation or workload. The average performance improvement may change in the final silicon though several leakers are still confident about RDNA 3 hitting that 2-2.5x performance increase over RDNA 2.

It is also mentioned that like RDNA 2, the top RDNA 3 SKU has changed a lot over the last few years. This means that the product has seen several variations but the development and mass production of V-Cache chiplet stacking technology has improved the confidence of the team building the next-gen GPU in regards to its performance. Another interesting thing listed in the rumor is that RDNA 3 is expected to bring a big efficiency & ray-tracing performance increase while also simultaneously upping the power demand on the high-end models.

AMD RDNA 3 Navi 3X GPU Configurations (Preliminary)

Do remember that AMD's high-end RDNA 3 chips such as the Navi 31 and Navi 32 GPUs are the ones that are expected to rock an MCM design while the Navi 33 GPU is said to be a monolithic & RDNA 3 enhanced Navi 21 variant. The rest of the lower-end chips are expected to be refreshes of the RDNA 2 lineup on the TSMC 6nm process node. More on that here.

AMD RDNA Generational GPU Lineup