AMD Zen 4 “Raphael”, with DDR5 and hybrid CPU at 5 and 7 nm

Thanks to Gamer Nexus, we were able to learn new details about the Zen 4 processors that AMD will launch in 2022 in its EPYC and Ryzen processor lines. The latest information that has been learned relates to Raphael, codename for the next generation of AMD Ryzen, which we hope will be part of the Ryzen 6000 series, after confirming that Zen 3 processors with V- Cache will continue to be Ryzen. 5000 family.

Details of Raphael, the Zen 4 desktop processor

Apparently AMD would have christened the Zen4 CCDs under the code name Durango, these would continue to be 8 cores and 32MB L3 cache

. Thus, the cache configuration and the number of cores would be the same as in Zen 3. Not the internal architecture of each of the cores. Draws attention that AMD has not integrated V-Cache, but its CPI should be above 20% which is better than Zen3 + with V-Cache.

The documentation leaked by Gamer Nexus also talks about a possible inclusion of an integrated GPU in the IO Die, which we don’t think is any different from the GPUs included in AMD’s SoCs. Although all of this indicates AMD could prepare for the arrival of its chip-based processors for laptops.

This processor will continue to rely on chips, but this time we have a new IO-Die, which is normal for DDR5 memory support. This will be built under TSMC’s 7nm node, abandoning the GLOBALFOUNDRIES design used since Zen 2

. Apart from DDR5 memory, we know that the new IO-Die or IOD will not have support for PCI Express 5.0, but adds 4 additional PCIe 4.0 lanes, for a total of 28.

On the other hand, it is also surprising to see the lack of support for USB 4, which surprises us after the information of the last few days, and therefore we will have to settle for USB 3.2.

Zen 4 also for socket AM4?

Along with details on AMD Raphael as a future Ryzen desktop processor, information has also been leaked. an SoC based on Zen 4 and using the AMD AM4 socket. Which has been AMD’s go-to socket in recent years and AMD is expected to make the jump to the AM5 socket, but among the information Gamer Nexus has leaked is a reference to a possible SoC under socket AM4, but with Zen Four cores.

As we can see, the SoC has the same specifications in its Northbridge as the rest of the SoCs for socket AM4. That is to say, the 24 PCI Express lanes, el Dual channel DDR4 support, etc. This suggests that AMD, as it did with SoCs with Zen 3 where it only had to replace the Zen 2 cores with Zen 3 cores, will be able to do the same with Zen 4.

In all cases, it must be taken into account that the source information date is March 2020, For what this is obsolete information already today AMD has claimed that the AM4 socket is numbered in days and will not be used in any of the Zen 4 processors.