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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 targeting greater than 50% performance increase over the Radeon RX 6900 XT graphics card with its RDNA 3 architecture.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)
GPU Name | Navi 21 | Navi 33 | Navi 32 | Navi 31 |
---|---|---|---|---|
GPU Process | 7nm | 6nm | 5nm/6nm | 5nm/6nm |
GPU Package | Monolithic | Monolithic | MCM | MCM |
Shader Engines | 4 | 2 | 4 (2 per GCD) | 6 (3 per GCD) |
GPU WGPs | 40 | 20 | 40 (20 per GCD) | 60 (30 per GCD) |
SPs Per WGP | 128 | 256 | 256 | 256 |
Compute Units (Per Die) | 80 | 40 | 80 160 (Total) | 120 240 (Total) |
Cores (Per Die) | 5120 | 5120 | 5120 | 7689 |
Cores (Total) | 5120 | 5120 | 10240 | 15360 |
Memory Bus | 256-bit | 128-bit | 192-bit | 256-bit |
Memory Type | GDDR6 | GDDR6 | GDDR6 | GDDR6 |
Infinity Cache | 128 MB | 256 MB | 384 MB | 512 MB |
Flagship SKU | Radeon RX 6900 XTX | Radeon RX 7600 XT? | Radeon RX 7700 XT? | Radeon RX 7900 XT? |
TBP | 330W | ~200W | ~300W | ~400W |
Launch | Q4 2020 | Q4 2021? | Q4 2021? | Q4 2021? |
In a speculative performance/pricing chart, it can be seen that the RX 7700 XT being as fast as the GeForce RTX 3090 for $599 US.
Source: AMD Next-Gen RDNA 3 & RDNA 4 GPU Rumors: Over 50% Performance Increase, Increased Radeon RX 7000 Pricing & Launch In 2H 2022 (wccftech.com)