New details regarding the performance of AMD's next-generation Zen 3 based EPYC Milan CPUs have been unearthed by Hardwareluxx. The information comes from internal AMD slides which were obtained by the publication and reveal the performance potential of AMD's next-gen server powerhouse.

AMD Zen 3 EPYC Milan CPUs Up To 20% Faster Than Zen 2 EPYC Rome, Larger Cache & Faster Clocked Variants Detailed

AMD's Zen 3 based EPYC Milan CPUs are planned to ship later this year and is expected to continue performance leadership in the server segment. Based on the leaked information, AMD is definitely going to deliver another major breakthrough in server performance with its 3rd Gen EPYC family of processors.

AMD EPYC Milan Features Max of 64 Cores But Up To 20% Faster Performance

According to the report, the AMD Zen 3 core architecture has increased the IPC performance by 15 percent. However, there is a certain range of SKUs within the EPYC Milan lineup that would deliver even higher performance. AMD is taking a different approach with EPYC Milan CPUs, segmenting the 64 core for compute-intensive workloads and 32 core parts maximizing the clock-throughput.

The 64 core parts are expected to deliver a performance jump of around 10 to 15% over existing EPYC Rome 64 core processors. The 32 core parts, on the other hand, are expected to deliver a 20% performance boost over the existing 32 core EPYC Rome parts. The leak states that AMD's 32 core parts and below can achieve significantly higher clock rates than the 64 core parts. The fewer cores will be able to offer higher and more stable clock speeds than the higher core parts, hence leading to a bigger performance jump over their predecessors.

AMD's EPYC Milan CPUs will stick to a maximum of 64 cores which will be composed of 8 chiplets. These CCD chiplets will feature 8 Zen 3 cores but unlike the previous generation parts, the CCX is entirely excluded from the architecture. The CCD is a singular unit that consists of 32 MB of L3 cache shared by all 8 cores while each core has its own separate 1 MB L2 cache.

While the EPYC Milan 64 core processors feature 8 chiplets, the 32 core parts will be composed of four chiplets. That could change if AMD wants to offer 32 core parts with higher L3 cache and that would only be possible with more than 4 chiplets. We have recently seen leaked ES samples with a rated boost clock of up to 3.0 GHz in A0 revision.

AMD CPU Roadmap (2017-2022)