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AMD Zen 4 and RDNA 3: Features and Possible Performance

New information has been leaked on the RedGamingTech website on the following AMD products: Warhol or Zen 3+, RDNA 3 and Zen 4. The reason we consider this information to be reliable is because the source already filters information from the Infinity Cache of RX 6000 GPUs before anyone else.

New RDNA 3 details

The first information to highlight is the fact that AMD will not launch its GPUs with RDNA 3 architecture during this year 2021, which opens the possibility of an RDNA 2 update that will appear during this year. Especially if we consider that NVIDIA could launch the “Super” version of its RTX 3000.

The jump from RDNA 2 to RDNA seems to be between 2.5 and 3 times compared to RDNA 2. Which makes sense with the classic performance increase per watt that AMD is making with its RDNA GPUs from generation to generation, in combination with the use of two GPUs in combination.

AMD Patent Chiplets

On the other hand, until now we knew the configuration of the high-end RDNA 3 based on two AMD GPU chiplets of 80 Compute Units each, called Navi 31. But, now we can already know the complete information of the rest of the range, in which Navi 32 will also be based on chiplets and Navi 33 will be a monolithic GPU.

As a last detail, it seems that as long as the typical acceleration units of all GPUs are not duplicated, these will be integrated into their own separate chiplet. We are referring to DMA units, video codecs, display drivers and other elements that are not responsible for rendering the scene in 3D, but which are essential elements in all GPUs.

AMD would follow behind NVIDIA in artificial intelligence

DirectML RDNA 2

When it comes to elements in NVIDIA architectures they have present-time advantage, such as AI and Ray Tracing. It seems that AMD has increased the Ray Tracing capabilities of RDNA 3, so it would have improved the Ray Acceleration Unit compared to RDNA 2, but in terms of AI for things equivalent to DLSS the performance would not reach the level. We do not know if it is because the AI ​​units that AMD adds will be as powerful as those of NVIDIA or because it is not going to add them once more.

Note that AMD promised support for DirectML algorithms, which are intended to scale to the use of specialized units for NVIDIA Tensor Core-style AI. Therefore, its inclusion is one of the biggest unknowns for RDNA 3.

New Zen 4 Information

Zen 4 Fake Logo

Zen 4 is not expected by 2022 and it is supposed to share TSMC’s 5nm manufacturing node with RDNA 3, so we will have two AMD products competing for TSMC wafers under that node and therefore not we know how one will affect the other in terms of stock.

As for the classic increase in the CPI from one generation to another, apparently it will be repeated in Zen 4 again, the logic indicates an increase in the CPI around 20% compared to Zen 3. How will they achieve it? ? It is still too early to talk about it.

What we do know is that the AMD Epyc will go from 64 cores to 96 cores, this is important, since it can indicate the increase in cores per CCD or chiplet from 8 in Zen 3 to 12 in Zen 4. So in configurations with a single CCD or Chiplet + IOD we can find 12-core configurations. Translation? Goodbye to 6-core setups.

AMD Warhol by the end of 2021: Zen 3+, DDR5 and PCIe 5.0

AMD Warhol AMD Roadmap

AMD is going to launch an update of Zen 3 that is called Zen 3+ and that will be released in a new desktop CPU that receives the code name of “Warhol”, this being the successor of AMD “Vermeer” which are the current Ryzen 5000 desktop, so we’re talking about chiplet-based configurations. Which will remain the same in terms of the number of cores, although they will have small improvements in the IPC that is not the differential point of Zen 3 + / Warhol, but this information is at least confusing and contradictory.

The agreement between AMD and Global Foundries, which manufactures the IOD of the Ryzen by chiplets, ends just this year and there is talk that we will see a new IOD for Zen 3+ that supports DDR5 memory and PCI Express 5.0. All this would indicate the use of socket AM5. At the same time there is information that Warhol would not support PCIe 5.0 but 4.0, so it would be compatible with the current IOD and it is possible that we will see Zen 3+ processors that are really “Vermeer” but with changed CCDs or chiplets.

Taking into account that AMD in laptops has rebranding its Zen 2-based processors in some Ryzen 5000Us, we should not rule out that the models of an eminent Warhol-based Ryzen 6000 series are renowned Ryzen 5000. In everything according to the people of RedGamingTech who have leaked the information they assure that their sources are very sure that AMD will continue to use the AM4 socket for Warhol, which would contradict much of the previous information.