AMD EPYC 9355 32-Core 3.55 GHz Server Processor 100-000001148

32-Core EPYC 9355 for dense server compute

The AMD EPYC 9355 is a 32-core, 64-thread server processor built on the 9005 series architecture. It operates at a 3.55 GHz base clock with a 4.4 GHz maximum turbo frequency and fits the Socket SP5 platform. A 256 MB L3 cache and 12-channel DDR5-6400 memory controller feed data to all cores, while 128 lanes of PCI Express 5.0 provide extensive I/O bandwidth for accelerators and storage. The processor carries a 280 W thermal design power and ships without a cooling device.

Suited for high-core-count workloads.

This CPU targets data-centre deployments that need maximum thread density per socket, such as virtualisation hosts, AI inference nodes and high-performance databases. Buyers who require lower power envelopes or fewer cores for smaller-scale applications should evaluate other SKUs in the 9005 series. The 12-channel memory subsystem also demands a platform that can populate all channels to realise full bandwidth.

128 lanes of PCIe 5.0 decide GPU and storage scale

The single specification that determines fit is the 128 lanes of PCI Express 5.0 connectivity. This lane count defines how many GPUs, high-speed drives, or network adapters can attach directly to the processor without a switch. If the target server design needs fewer lanes or relies on an older PCIe generation, a different processor may be more cost-effective.