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

AMD

AMD EPYC 7742 100-000000053 64-core 2.25 GHz server processor

SKU CH-4VTJ-EEBZR MPN 100-000000053

64-core server processor with 128 threads, 2.25 GHz base clock, 3.4 GHz max turbo, 256 MB L3 cache, 8-channel DDR4-3200 support and 128 PCIe 4.0 lanes

  • NameEPYC 7742
  • CPU Socket TypeSocket SP3
  • # of Cores64-Core
  • # of Threads128
  • Operating Frequency2.25 GHz
  • Max Turbo Frequency3.4 GHz
  • 64 cores and 128 threads handle massive parallel workloads
  • 256 MB L3 cache cuts latency for data-intensive applications
  • 8-channel DDR4-3200 memory controller feeds cores with high bandwidth
  • 128 lanes of PCIe 4.0 connect fast storage and accelerators directly
  • 7 nm process and 225 W TDP balance density with power efficiency

64-Core EPYC 7742 for dense compute

The AMD EPYC 7742 is a 64-core, 128-thread server processor built on 7 nm technology for the SP3 socket. It targets data-centre workloads that scale across many parallel threads such as virtualisation, cloud infrastructure and high-performance computing. Base frequency sits at 2.25 GHz with a maximum boost of 3.4 GHz. The 256 MB L3 cache and eight-channel DDR4-3200 memory controller feed data to all cores without creating bottlenecks.

Installation and common pitfalls

The processor drops into a compatible SP3 motherboard socket without soldering, but the 225 W thermal design power demands a server-grade cooler and airflow plan that the board vendor qualifies for this TDP. No cooling device is included in the OEM pack. Builders must also populate all eight memory channels with matched DDR4 modules to reach rated bandwidth; mixing capacities or speeds will reduce performance. BIOS support for the 7002 series must be verified before installation, otherwise the system will not post.

PCIe 4.0 and memory limits

The chip exposes 128 lanes of PCIe 4.0, enabling direct attachment of high-speed storage arrays, GPU accelerators or networking cards without a switch. However, total platform I/O is still bound by the motherboard layout and backplane design, so not every lane may be routable to a usable slot. Memory capacity per socket reaches the platform maximum defined by the board vendor, and the eight-channel controller only operates with DDR4 DIMMs — newer DDR generations are electrically incompatible and will not fit.

Points forts

  • 64 cores and 128 threads handle massive parallel workloads
  • 256 MB L3 cache cuts latency for data-intensive applications
  • 8-channel DDR4-3200 memory controller feeds cores with high bandwidth
  • 128 lanes of PCIe 4.0 connect fast storage and accelerators directly
  • 7 nm process and 225 W TDP balance density with power efficiency

Caractéristiques

BrandAMD
SeriesAMD EPYC 7002
NameEPYC 7742
Model100-000000053
CPU Socket TypeSocket SP3
# of Cores64-Core
# of Threads128
Operating Frequency2.25 GHz
Max Turbo Frequency3.4 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’expédition3.86 kg
Dimensions du colis178 × 178 × 102 mm

Questions sur cet article

How can I confirm the 64-core EPYC 7742 is running at its 2.25 GHz base frequency after installation?

Check the operating frequency in your server BIOS or use a monitoring tool such as lm-sensors to verify all 64 cores report 2.25 GHz at idle.

The OEM pack lists "Cooling device not included - Processor Only" — what else must I source before the CPU will run?

You need a Socket SP3 heatsink rated for 225 W TDP, DDR4-3200 memory modules for the 8-channel controller, and a compatible SP3 motherboard.

Should I choose the 7742 or another 7002-series model for a workload that needs maximum core count and 256 MB L3 cache?

The 7742 is the only 7002-series SKU with 64 cores and 256 MB L3 cache; lower-core models have less cache and fewer threads.

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