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

AMD

AMD EPYC 9645 100-000001461 96-core 2.3 GHz server processor

SKU CH-Q24S-8970N MPN 100-000001461

96-core server CPU with 192 threads, 2.3 GHz base clock, 3.7 GHz turbo, 256 MB L3 cache, DDR5-6400 12-channel memory, 128 PCIe 5.0 lanes, 320 W TDP, Socket SP5

  • NameEPYC 9645
  • CPU Socket TypeSocket SP5
  • # of Cores96-Core
  • # of Threads192
  • Operating Frequency2.3 GHz
  • Max Turbo Frequency3.7 GHz

Option EPYC 9645

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  • 96 cores and 192 threads handle massive parallel workloads
  • 3 GHz base with 3.7 GHz turbo speeds through demanding tasks
  • 256 MB L3 cache reduces latency for complex calculations
  • 12-channel DDR5 6400 memory controller feeds data-intensive applications
  • 128 PCIe 5.0 lanes enable high-throughput GPU and storage connectivity

High-density 96-core server processor

The AMD EPYC 9645 is a 5th generation server CPU built for dense, compute-intensive data-centre workloads. It delivers 96 cores and 192 threads at a 2.3 GHz base clock with a 3.7 GHz max turbo frequency. A 256 MB L3 cache supports high-throughput processing for AI inference, cloud and enterprise applications. This processor targets operators who need maximum core count per socket.

Twelve-channel DDR5 6400 and PCIe 5.0 limits

Memory runs on twelve channels of DDR5 at 6400 MT/s, so bandwidth scales with fully populated DIMM slots. PCI Express 5.0 provides 128 lanes for GPU, storage and networking expansion, but total throughput depends on the platform's lane allocation and switch topology. The 320 W TDP sets a firm thermal ceiling that constrains sustained boost behaviour under heavy all-core loads.

Verify SP5 platform and cooling capacity

Confirm your motherboard uses the Socket SP5 interface and supports the EPYC 9005 series with a qualified BIOS. Ensure the chassis and cooling solution can dissipate 320 W continuously, as no cooler is included. Validate that your memory kits are DDR5 6400 compatible and that the power-delivery subsystem meets the processor's current demands.

Istaknuto

  • 96 cores and 192 threads handle massive parallel workloads
  • 3 GHz base with 3.7 GHz turbo speeds through demanding tasks
  • 256 MB L3 cache reduces latency for complex calculations
  • 12-channel DDR5 6400 memory controller feeds data-intensive applications
  • 128 PCIe 5.0 lanes enable high-throughput GPU and storage connectivity

Specifikacije

BrandAMD
SeriesAMD EPYC 9005
NameEPYC 9645
Model100-000001461
CPU Socket TypeSocket SP5
# of Cores96-Core
# of Threads192
Operating Frequency2.3 GHz
Max Turbo Frequency3.7 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 Power320W
Cooling DeviceCooling device not included - Processor Only
Težina pošiljke0.23 kg
Dimenzije pakiranja127 × 127 × 38 mm

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Should I choose the 96-core EPYC 9645 or a lower-core model in the 9005 series?

The 9645 provides 96 cores and 192 threads at a 2.3 GHz base clock with 3.7 GHz max turbo, while other 9005 models offer fewer cores and different frequency profiles.

What does the 2.3 GHz base clock mean for sustained workloads on this processor?

The 2.3 GHz base frequency is the guaranteed all-core speed under the 320 W TDP; sustained throughput scales across all 96 cores and 192 threads with 256 MB L3 cache.

How does the PCIe 5.0 interface with 128 lanes limit expansion in a dual-socket server?

Each CPU delivers 128 PCIe 5.0 lanes, so a two-socket platform provides 256 lanes total for GPUs, storage and networking without sharing bandwidth between sockets.

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