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AMD EPYC 7004, the new CPU with more than 64 cores

With Zen 3 being on the market for months and only missing its launch in the markets with less sales volume for AMD, it is completely normal that the rumors about Zen 4 are appearing. This time it’s about the AMD EPYC 7004, which is going to have a somewhat different configuration than the AMD EPYC 7002 and EPYC 7003, beyond using Zen 4 cores.

AMD EPYC 7004 exceeds 64 cores

According to the roadmap that has been leaked from AMD, Zen 4 equipped AMD EPYC 7004 will exceed 64 cores, but without giving a specific figure for it. The reason why the AMD EPYC based on Zen 2 and Zen 3 have never exceeded 64 cores, is because this is the limit that allows them to have their IOD, which is the central chip that is responsible for communicating the cores between yes, with the chipset and the RAM.

The imminent departure of the DDR5 memory and the fifth generation of PCI Express opens the need for a new IOD, to which the number of CCD Chiplets and with it the number of cores in total can be increased. We do not officially know if AMD will increase the number of cores per CCD beyond 8.

Everything indicates that in Zen 4 the number of cores per CCD will continue to be 8, but the number of CCDs in the AMD EPYC will increase from 8 to a higher figure. If you increase from 8 to 10 CCDs then they will be face to face with the Intel Sapphire Rapids in number of cores. Although they can also increase up to 96 cores and therefore with a configuration of 12 CCDs.

Other details of the route map

AMD EPYC

Another of the processors that appears on the roadmap is the AMD Ryzen Embedded V3000, which will be based this time on a Zen 3 CCD and therefore in a configuration of 8 cores and 16 threads.

In the leaked roadmap AMD has not given information on the following Zen 4-based AMD Ryzen, so the information is totally incomplete. In any case, it gives us information about the different times in which AMD works. The average time between a processor finishing its final design until it is launched on the market is six months, which is the pre-production time, so to still see the first published benchmarks of Zen 4-based CPUs we will have to wait a few months.

This means that Intel is going to move first with Alder Lake, an architecture with which Intel has the obligation not only to surpass itself and the cores based on Zen 3, but to have a CPU that is competitive with Zen 4. AMD for the other side has to make a difference and press the accelerator to leave Intel behind.