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Square green ceramic processor with gold contact pads and silver metal heatspreader showing model markings

AMD

AMD EPYC 7643P 48-Core 2.3 GHz Server Processor 100-000001285

SKU CH-DKTR-CEQF0 MPN 100-000001285

48-core server CPU with 96 threads, 2.3 GHz base and 3.6 GHz boost clocks, 256 MB L3 cache, eight-channel DDR4-3200 memory controller, 128 PCIe 4.0 lanes and 225 W TDP

  • NameEPYC 7643P
  • CPU Socket TypeSocket SP3
  • # of Cores48-Core
  • # of Threads96
  • Operating Frequency2.3 GHz
  • Max Turbo Frequency3.6 GHz
  • 48 cores and 96 threads handle heavy parallel workloads
  • 256 MB L3 cache reduces latency for data-intensive tasks
  • Max turbo frequency of 3.6 GHz boosts single-thread performance
  • Eight-channel DDR4 3200 memory controller feeds all cores
  • 128 PCIe 4.0 lanes provide high-bandwidth I/O connectivity

EPYC 7643P 48-Core Server Processor

The AMD EPYC 7643P is a 48-core, 96-thread server processor built for the SP3 socket. It operates at a base frequency of 2.3 GHz with a maximum turbo frequency of 3.6 GHz. Designed for dense compute environments, it supports 8-channel DDR4 3200 memory and provides 128 lanes of PCI Express 4.0 connectivity.

256 MB L3 Cache Capacity

The processor includes 256 MB of L3 cache alongside 24 MB of L2 cache, delivering high hit rates for latency-sensitive workloads. This large cache pool is the primary specification that determines suitability for memory-bound applications such as virtualisation, database hosting and high-performance computing. Buyers needing significantly more cache per core should evaluate alternative SKUs.

225 W Thermal Design Power

With a rated thermal design power of 225 W, the chip requires robust cooling infrastructure; no cooling device is included in the OEM package. The 7 nm process technology helps maintain efficiency under sustained all-core loads. Systems must provide adequate airflow and power delivery to sustain the 3.6 GHz boost without thermal throttling.

Points forts

  • 48 cores and 96 threads handle heavy parallel workloads
  • 256 MB L3 cache reduces latency for data-intensive tasks
  • Max turbo frequency of 3.6 GHz boosts single-thread performance
  • Eight-channel DDR4 3200 memory controller feeds all cores
  • 128 PCIe 4.0 lanes provide high-bandwidth I/O connectivity

Caractéristiques

BrandAMD
SeriesAMD EPYC 7003
NameEPYC 7643P
Model100-000001285
CPU Socket TypeSocket SP3
# of Cores48-Core
# of Threads96
Operating Frequency2.3 GHz
Max Turbo Frequency3.6 GHz
L3 Cache256MB
64-Bit SupportYes
Integrated Memory Controller SpeedDDR4 3200
Memory Channel8 Channel
PCI Express Revision4.0
Max # of PCI Express Lanes128
Thermal Design Power225W
Cooling DeviceCooling device not included - Processor Only
Poids d’expédition2.27 kg
Dimensions du colis25 × 25 × 25 mm

Questions sur cet article

How does the 48-core, 2.3 GHz design translate to real-world throughput in a server chassis?

The 48 cores and 96 threads run at a 2.3 GHz base clock with a 3.6 GHz max turbo, while 256 MB L3 and 24 MB L2 caches feed data to all cores simultaneously for sustained multi-threaded workloads.

What does the PCIe 4.0 interface with 128 lanes cap in actual I/O bandwidth?

PCIe 4.0 delivers 128 lanes from the socket, allowing direct attachment of many high-speed devices such as GPUs, storage controllers, or networking cards without lane-sharing bottlenecks.

What physical clearance and power provisions are needed to mount this SP3 processor?

It fits the Socket SP3 land-grid array, requires a 225 W TDP cooling solution (not included), and connects to eight DDR4-3200 memory channels for full memory bandwidth.

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