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Square green ceramic processor with gold contacts and silver metal heatspreader, SP5 socket form factor

AMD

AMD EPYC 9355P 100-000001521 32-Core 3.55 GHz Server Processor

SKU CH-YDRV-3630M MPN 100-000001521

32-core server processor with 64 threads, 3.55 GHz base clock, 4.4 GHz max turbo, 256 MB L3 cache, 12-channel DDR5-6400 memory controller and 128 PCIe 5.0 lanes

  • NameEPYC 9355P
  • CPU Socket TypeSocket SP5
  • # of Cores32-Core
  • # of Threads64
  • Operating Frequency3.55 GHz
  • Max Turbo Frequency4.4 GHz

Option EPYC 9355P

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  • 32 cores and 64 threads handle parallel workloads efficiently
  • 55 GHz base clock with 4.4 GHz max turbo accelerates single-thread tasks
  • 256 MB L3 cache reduces memory latency for faster data access
  • 12-channel DDR5 6400 controller feeds all cores with high bandwidth
  • 128 PCIe 5.0 lanes enable massive I/O expansion for GPUs and storage

32-Core EPYC 9005 Processor for Dense AI Workloads

The AMD EPYC 9355P is a 32-core server processor built on the 9005 series architecture for data centres running AI, cloud and enterprise workloads. It delivers 64 threads at a 3.55 GHz base frequency with a 4.4 GHz maximum turbo boost. The 256 MB L3 cache supports high hit rates for latency-sensitive applications. This CPU targets operators who need maximum per-socket density without adding rack space.

280W TDP Without Included Cooling Solution

Thermal design power is rated at 280 watts and no cooling device ships with the processor. System integrators must provide a Socket SP5-compatible cooler rated for this heat load. The 12-channel DDR5 6400 memory controller and 128 PCIe 5.0 lanes contribute to platform power draw under sustained compute tasks. Buyers planning passively cooled or ultra-quiet chassis should verify thermal margins before deployment.

Socket SP5 Platform With 12-Channel DDR5 Support

The processor installs into Socket SP5 motherboards and exposes 12 memory channels for DDR5 6400 modules. All 128 PCI Express 5.0 lanes connect directly to the CPU for GPU, storage and networking expansion. No bundled software or accessories alter this baseline configuration. Organisations requiring pre-validated firmware stacks or management utilities must source those separately from their platform vendor.

Highlights

  • 32 cores and 64 threads handle parallel workloads efficiently
  • 55 GHz base clock with 4.4 GHz max turbo accelerates single-thread tasks
  • 256 MB L3 cache reduces memory latency for faster data access
  • 12-channel DDR5 6400 controller feeds all cores with high bandwidth
  • 128 PCIe 5.0 lanes enable massive I/O expansion for GPUs and storage

Specifications

BrandAMD
SeriesAMD EPYC 9005
NameEPYC 9355P
Model100-000001521
CPU Socket TypeSocket SP5
# of Cores32-Core
# of Threads64
Operating Frequency3.55 GHz
Max Turbo Frequency4.4 GHz
L3 Cache256MB
64-Bit SupportYes
Integrated Memory Controller SpeedDDR5 6400
Memory Channel12 Channel
PCI Express Revision5.0
Max # of PCI Express Lanes128
Thermal Design Power280W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.25 kg
Package size191 × 152 × 81 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How is the EPYC 9355P installed into the Socket SP5 and what step is often missed?

Align the gold triangle on the processor with the socket triangle, lower the carrier frame evenly, then torque the retention screws in a cross pattern to the board maker's specification; skipping the cross-pattern torque can leave uneven contact.

What maintenance or replacement will the EPYC 9355P need later?

No user-serviceable parts exist on the processor itself; plan to replace thermal interface material whenever the cooler is removed and monitor the 280 W thermal design power with adequate airflow over the system's service life.

What limit appears first on the EPYC 9355P under sustained all-core load?

The 280 W thermal design power ceiling is reached before the 4.4 GHz max turbo frequency can be held across all 32 cores, so clock speeds settle at the base 3.55 GHz once the cooling solution saturates.

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