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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

  • Product nameEPYC 7742
  • CPU cores64-Core
  • CPU socketSocket SP3
  • Maximum turbo clock3.4 GHz
  • TDP rating225 W
  • CPU threads128

Model 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.

How it compares

Measured against everything we stock in Server Processors, at today’s prices. Recalculated every night.

Price $5,438.99
Pricier than about 89% of the 621 comparable items (median $1,561.99).
CPU cores 64-Core
Higher than about 83% of the 386 comparable items (median 24).
Maximum turbo clock 3.4 GHz
Lower than about 80% of the 327 comparable items (median 3.9 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameAMD
Product lineAMD EPYC 7002
Model name100-100000053WOF
Product nameEPYC 7742
Performance
Working frequency2.25 GHz
Processor
CPU cores64-Core
CPU socketSocket SP3
Maximum turbo clock3.4 GHz
TDP rating225 W
CPU threads128
Level 3 cache256 MB
64-bit capableYes
Maximum PCIe lanes128
Memory
Supported memory speedDDR4 3200
Channel configuration8 Channel
Ports & slots
PCIe generation4.0
Size & build
Shipping weight0.45 kg
Package size203 × 127 × 51 mm
In the box
Included coolerNot included - Processor Only

Other versions of this model

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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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