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

AMD

AMD EPYC 9455P 100-000001563 48-core server processor

SKU CH-XX5W-YNKM2 MPN 100-000001563

Forty-eight-core server CPU with 96 threads, 3.15 GHz base clock, 4.4 GHz boost, 256 MB L3 cache, 12-channel DDR5-6400 memory controller and 128 PCIe 5.0 lanes

  • NameEPYC 9455P
  • CPU Socket TypeSocket SP5
  • # of Cores48-Core
  • # of Threads96
  • Operating Frequency3.15 GHz
  • Max Turbo Frequency4.4 GHz

Option EPYC 9455P

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  • 48 cores and 96 threads handle heavy parallel workloads
  • 15 GHz base clock with 4.4 GHz max turbo frequency
  • 256 MB L3 cache improves data access speed
  • 12-channel DDR5 6400 memory controller increases bandwidth
  • 128 PCIe 5.0 lanes support high-speed I/O expansion

EPYC 9455P 48-core server processor

The AMD EPYC 9455P is a 5th generation server CPU with 48 cores and 96 threads. It targets data-centre workloads such as AI inference, cloud services and enterprise computing. Base frequency is 3.15 GHz with a maximum turbo of 4.4 GHz. A 256 MB L3 cache supports high hit rates for demanding applications.

Verify SP5 socket and DDR5-6400 12-channel memory

Confirm the motherboard uses Socket SP5 and provides 12 memory channels running DDR5 at 6400 MT/s. The processor requires a platform that can deliver up to 128 PCIe 5.0 lanes for full I/O capability. Cooling is not included, so a compatible SP5 heatsink or liquid block must be sourced separately.

300 W TDP demands robust cooling solution

Thermal design power is rated at 300 W, requiring substantial airflow or liquid cooling to maintain 3.15 GHz base clocks under sustained load. Fan or pump noise will scale with the cooler chosen and the chassis airflow design. Power delivery must support the full 300 W envelope plus VRM overhead.

Points forts

  • 48 cores and 96 threads handle heavy parallel workloads
  • 15 GHz base clock with 4.4 GHz max turbo frequency
  • 256 MB L3 cache improves data access speed
  • 12-channel DDR5 6400 memory controller increases bandwidth
  • 128 PCIe 5.0 lanes support high-speed I/O expansion

Caractéristiques

BrandAMD
SeriesAMD EPYC 9005
NameEPYC 9455P
Model100-000001563
CPU Socket TypeSocket SP5
# of Cores48-Core
# of Threads96
Operating Frequency3.15 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 Power300W
Cooling DeviceCooling device not included - Processor Only
Poids d’expédition0.23 kg
Dimensions du colis127 × 127 × 38 mm

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Questions sur cet article

Does the EPYC 9455P arrive with a cooler in the box?

The processor ships without a cooling device; a compatible SP5 cooler must be sourced separately.

When should I pick the 9455P over the 9965 or other 9005 series SKUs?

Choose the 9455P when you need 48 cores at 3.15 GHz base and 300 W TDP; the 9965 offers 96 cores for heavier throughput.

What sustained clock can I expect from the 3.15 GHz base once the chip is under full load in a server?

The 3.15 GHz base is guaranteed at the 300 W TDP; all-core turbo will vary with workload and cooling but will not exceed 4.4 GHz max boost.

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