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Square green ceramic processor with gold contacts and silver heat spreader, retail box visible

AMD

AMD EPYC 7742 100-100000053WOF server processor

SKU CH-DWM8-DTNAH MPN 100-100000053WOF

A 64-core server processor with 128 threads, 256 MB L3 cache, eight-channel DDR4-3200 support and 128 lanes of PCIe 4.0

  • NameEPYC 7742
  • CPU Socket TypeSocket SP3
  • # of Cores64-Core
  • # of Threads128
  • Operating Frequency2.25 GHz
  • Max Turbo Frequency3.4 GHz

Option 7742

  • 64 cores and 128 threads handle massive parallel workloads
  • 256 MB L3 cache reduces latency for data-intensive applications
  • Eight-channel DDR4 3200 memory controller maximises bandwidth
  • 128 PCIe 4.0 lanes provide high-speed I/O connectivity
  • 4 GHz max boost frequency accelerates single-thread performance

64-core EPYC 7742 for dense compute

The AMD EPYC 7742 is a 64-core, 128-thread server processor built on the 7 nm Rome architecture for Socket SP3 platforms. It runs at a 2.25 GHz base frequency and can boost to 3.4 GHz across its 256 MB L3 cache. The chip supports eight channels of DDR4 3200 memory and exposes 128 lanes of PCI Express 4.0 with a 225 W TDP.

Suited for heavily threaded server workloads

This processor targets virtualisation hosts, high-performance computing clusters and database servers that benefit from maximum core density in a single socket. It is not intended for desktop builds, workstations that require integrated graphics, or systems limited to single-threaded application performance. Buyers needing a lower core count or reduced power envelope should evaluate other SKUs.

128 lanes of PCIe 4.0 connectivity

The 128 PCI Express 4.0 lanes define the I/O ceiling for storage controllers, GPU accelerators and high-speed network adapters in one- or two-socket configurations. This lane count determines how many peripherals can operate at full interface bandwidth without sharing. Verify your motherboard and chassis backplane can route the required lanes before purchase.

Highlights

  • 64 cores and 128 threads handle massive parallel workloads
  • 256 MB L3 cache reduces latency for data-intensive applications
  • Eight-channel DDR4 3200 memory controller maximises bandwidth
  • 128 PCIe 4.0 lanes provide high-speed I/O connectivity
  • 4 GHz max boost frequency accelerates single-thread performance

Specifications

BrandAMD
SeriesAMD EPYC 7002
NameEPYC 7742
Model100-100000053WOF
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
Shipping weight0.45 kg
Package size203 × 127 × 51 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

How do I install the EPYC 7742 into the SP3 socket without bending pins?

Align the gold triangle on the processor with the socket triangle, lower it vertically without force, then secure the carrier using the specified torque sequence; the step most often missed is tightening the captive screws in the correct diagonal order.

What maintenance will the 225W EPYC 7742 require over its service life?

Plan to replace the thermal interface material every two to three years and clean the heatsink fins regularly; the processor itself has no user-serviceable parts and the cooling device is not included.

At what point does the 225W TDP become the limiting factor during sustained all-core workloads?

When all 64 cores run continuously at 2.25 GHz the 225W thermal envelope is reached, so the cooling solution must dissipate that power indefinitely or the processor will throttle to stay within its rated TDP.

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