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

AMD

AMD 100-000001443 EPYC 9755 server processor 128-core 2.7 GHz 512MB L3

SKU CH-ZVP4-3CVE4 MPN 100-000001443

128-core server CPU with 2.7 GHz base clock, 4.1 GHz boost, 512 MB L3 cache, 12-channel DDR5-6400 support and 128 PCIe 5.0 lanes

  • NameEPYC 9755
  • CPU Socket TypeSocket SP5
  • # of Cores128-Core
  • # of Threads256
  • Operating Frequency2.7 GHz
  • Max Turbo Frequency4.1 GHz

Option EPYC 9755

Show 15 more configurations
  • 128 cores and 256 threads handle massive parallel workloads
  • 7 GHz base and 4.1 GHz boost deliver high single-thread speed
  • 512 MB L3 cache reduces latency for data-intensive tasks
  • 12-channel DDR5 6400 memory controller maximises bandwidth
  • 128 PCIe 5.0 lanes enable extensive I/O expansion

AMD EPYC 9755 128-Core Server Processor

The AMD EPYC 9755 is a 5th Generation server processor built for Socket SP5 platforms. It delivers 128 cores and 256 threads with a base clock of 2.7 GHz and a max turbo frequency of 4.1 GHz. A 512 MB L3 cache supports high-throughput workloads.

Suits dense AI and cloud compute.

This processor targets data centres running AI inference, cloud services, and enterprise applications needing maximum per-server performance. Its 500 W TDP and 128 PCIe 5.0 lanes demand robust cooling and power infrastructure. Buyers needing lower thermal output or fewer cores should consider other options.

512 MB L3 cache drives high hit rates

The large 512 MB L3 cache provides excellent hit rates in short access time, improving system performance for memory-intensive workloads. Twelve DDR5 6400 memory channels feed the 128 cores. Cooling device is not included.

Highlights

  • 128 cores and 256 threads handle massive parallel workloads
  • 7 GHz base and 4.1 GHz boost deliver high single-thread speed
  • 512 MB L3 cache reduces latency for data-intensive tasks
  • 12-channel DDR5 6400 memory controller maximises bandwidth
  • 128 PCIe 5.0 lanes enable extensive I/O expansion

Specifications

BrandAMD
SeriesAMD EPYC 9005
NameEPYC 9755
Model100-000001443
CPU Socket TypeSocket SP5
# of Cores128-Core
# of Threads256
Operating Frequency2.7 GHz
Max Turbo Frequency4.1 GHz
L3 Cache512MB
64-Bit SupportYes
Integrated Memory Controller SpeedDDR5 6400
Memory Channel12 Channel
PCI Express Revision5.0
Max # of PCI Express Lanes128
Thermal Design Power500W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.14 kg
Package size108 × 89 × 8 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

Will the EPYC 9755 fit my existing SP5 motherboard and DDR5-6400 memory?

The processor uses Socket SP5 and an integrated DDR5-6400 controller across 12 channels, so it installs in any SP5 platform wired for 12-channel DDR5-6400 operation.

How can I confirm the 128 cores and 256 threads are active after installation?

Check the OS task manager or run lscpu — both will report 128 cores and 256 threads at the 2.7 GHz base clock with 4.1 GHz max turbo.

Does the box include a cooler or thermal paste for the 500 W TDP?

The package contains the processor only; a cooling solution rated for 500 W and compatible thermal interface material must be purchased separately.

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