AMD Zen 3 architecture could run four threads per core

AMD is having an amazing 2019 since the launch of its Ryzen 3000 processors, EPYC Rome CPUs based on Zen 2 architecture. The breakthrough architecture for AMD has completely shaken off the market, leaving behind Intel with its superior performance.

The design of the Zen 3 microarchitecture seems to be completed and has included a new execution feature dubbed to be SMT4. This SMT4 feature will allow AMD’s 4000 series chips the ability to process four threads per core simultaneously. 

The company’s Zen 2 core did have some improvements on the SMT capability of the original Zen architecture, which was, in fact, the company’s first-ever design to feature SMT multi-threading feature. The SMT4 just doubles the execution thread count per core from two to four.

The Zen 3 microarchitecture is based upon 7nm+ architecture and the chips will be produced using improved extreme UV lithography (EUV) method. Leaks even say with Zen 3 20% more transistors can be packed into a comparable space that will also result in power-consumption improvements of up to 10%

The Red team has been able to achieve this by taking advantage of underutilized pipelines in the more complex core designs of its new Zen microarchitecture to maximize the use of the available resources. IBM has already been able to achieve up to eight threads per core with its own designs, but AMD would be the first to achieve this with x86-based designs. 

Already AMD has beaten Intel’s single-core performance as well as multi-core performances in both desktop processors and server CPUs. Now if the Red team can properly use the 7nm+ process node along with SMT4 these chips can cause heavy problems for Intel.

The Ryzen 4000 is scheduled to launch in 2020 along with other Zen 3 architecture-based products including the server-end Milan CPUs. Already Intel is in danger in the server market with the powerful & cheaper EPYC Rome CPUs, on top that, the SMT4 feature can seriously trouble Intel in 2020.

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