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Square green ceramic processor with gold contact pads and silver metal heat spreader, SP5 socket form factor

AMD

AMD 100-000001522 EPYC 9655P 96-core server processor

SKU CH-K9EG-NM784 MPN 100-000001522

96-core server processor with 192 threads, 2.6 GHz base clock, 4.5 GHz max turbo, 384 MB L3 cache, 12-channel DDR5-6400 memory controller, 128 PCIe 5.0 lanes and 400 W TDP for Socket SP5 platforms

  • NameEPYC 9655P
  • CPU Socket TypeSocket SP5
  • # of Cores96-Core
  • # of Threads192
  • Operating Frequency2.6 GHz
  • Max Turbo Frequency4.5 GHz

Option EPYC 9655P

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  • 96 cores and 192 threads handle heavy multi-threaded workloads
  • 384 MB L3 cache improves data access speed for better throughput
  • 6 GHz base and 4.5 GHz max turbo clock speeds deliver responsive compute performance
  • 12-channel DDR5 6400 memory controller provides high memory bandwidth
  • 128 PCIe 5.0 lanes enable extensive I/O connectivity for accelerators and storage

96-core EPYC 9655P for dense server workloads

The AMD EPYC 9655P is a 96-core, 192-thread server processor built for the SP5 platform. It targets data-centre deployments that need maximum core density for AI inference, cloud instances and enterprise databases. Buyers who need fewer cores or lower power draw should look at other models in the 9005 series.

384 MB L3 cache and 12-channel DDR5-6400

The single specification that decides fit is the 384 MB L3 cache combined with twelve DDR5-6400 memory channels. This cache capacity and memory bandwidth determine whether the processor can keep large working sets close to the cores without stalling on main memory.

400 W TDP with no cooler in the box

The processor carries a 400 W thermal design power and ships without a cooling solution. System integrators must provide SP5-compatible cooling rated for sustained 400 W operation, and chassis airflow must be planned for the corresponding heat output under full load.

Highlights

  • 96 cores and 192 threads handle heavy multi-threaded workloads
  • 384 MB L3 cache improves data access speed for better throughput
  • 6 GHz base and 4.5 GHz max turbo clock speeds deliver responsive compute performance
  • 12-channel DDR5 6400 memory controller provides high memory bandwidth
  • 128 PCIe 5.0 lanes enable extensive I/O connectivity for accelerators and storage

Specifications

BrandAMD
SeriesAMD EPYC 9005
NameEPYC 9655P
Model100-000001522
CPU Socket TypeSocket SP5
# of Cores96-Core
# of Threads192
Operating Frequency2.6 GHz
Max Turbo Frequency4.5 GHz
L3 Cache384MB
64-Bit SupportYes
Integrated Memory Controller SpeedDDR5 6400
Memory Channel12 Channel
PCI Express Revision5.0
Max # of PCI Express Lanes128
Thermal Design Power400W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.27 kg
Package size184 × 152 × 83 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 does the 96-core design translate to real-world throughput?

The 96 cores and 192 threads let a single server run many parallel workloads at once, reducing the number of physical machines needed for the same integer performance.

What does the PCIe 5.0 interface with 128 lanes mean for expansion?

It provides 128 lanes of PCIe 5.0 bandwidth so multiple GPUs, storage controllers and networking cards can connect directly to the CPU without sharing lanes.

What cooler clearance and socket does the 400 W SP5 package require?

The processor fits Socket SP5 and has a 400 W TDP, so the server chassis must accept an SP5 cooler rated for at least 400 W of heat dissipation.

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