Last year some quite interesting rumors started that spoke of AMD processors with many more cores. According to those rumors, AMD was thinking of integrating into the EPYC MILAN of Zen3 architecture, no less than 4 threads per core. A roadmap has been leaked that disproves this hypothesis and moves it to AMD GENOA processors, which also belong to the EPYC family.
The processing threads are a complement in modern processors that improves the performance of this. He takes charge of performing certain tasks, in order to increase computing efficiency. Doubling the number of threads per core could be a big performance jump, although of course, everything is hypothetical at the moment.
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AMD EPYC GENOA with 4 threads per core
Basically the processing threads allow parallel processing and reduce computing times. An interesting feature is that they could allow to increase the number of virtual machines on a physical machine. Thus the processor is 'divided' into four smaller groups to be able to perform more tasks and reduce execution times.
It should be noted that this system has been integrated into IBM POWER ISA processors for years. The company's chips offer 4-wire and even 8-wire SMT systems. This is one of the reasons why POWER processors are so powerful and highly valued in the industry. If it is not enforced by AMD and Intel on x86 processors, it is because they both prioritize energy efficiency.
So the EPYC GENOA, despite still being Zen3 @ 7nm +, would have a huge amount of improvements. Not only will SMT4 be implemented, but also DDR5, PCIe Gen5 and the S-Link data bus. For these new processors the AP4 socket has been developed, essential to accommodate all the novelties. We will have to wait to be able to confirm all these data.
Source: MD
