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Square green ceramic CPU package with gold contacts and silver metal heatspreader, branded AMD EPYC 7742

AMD

AMD EPYC 7742 64-core 2.25 GHz SP3 225W server processor

SKU CH-3HJJ-4NZRY

64-core server processor with 128 threads, 2.25 GHz base and 3.4 GHz boost, SP3 socket and 225 W TDP

  • NameEPYC 7742
  • CPU Socket TypeSocket SP3
  • # of Cores64-Core
  • # of Threads128
  • Operating Frequency2.25GHz
  • Max Turbo Frequency3.4GHz
  • 64 cores and 128 threads handle massive parallel workloads
  • Base clock 2.25 GHz with max boost up to 3.4 GHz
  • 8-channel DDR4 support feeds memory-intensive applications
  • 128 lanes of PCIe 4.0 provide high-speed I/O bandwidth
  • 64 MB L3 cache reduces latency for large data sets

AMD EPYC 7742 64-Core Server Processor

This AMD EPYC 7742 is a 64-core server processor built for the SP3 socket. It operates at a 2.25 GHz base frequency and reaches a 3.4 GHz maximum boost. The chip provides 128 threads and 64 MB of L3 cache within a 225 W TDP envelope. It belongs to the EPYC 7002 series.

Suited for dense compute and memory-heavy workloads

This processor suits deployments needing high core counts and eight-channel DDR4 bandwidth. It also delivers 128 lanes of PCIe 4.0 for extensive I/O. It is not for single-threaded tasks that favour higher per-core clocks. It is also not for platforms that lack SP3 infrastructure or dual-socket support.

The 64-core count and 225 W TDP decide fit

The defining specification is the 64-core configuration paired with a 225 W default TDP. This combination determines whether your cooling and power budget can accommodate the part. Verify that your SP3 platform supports this thermal design before purchase.

Highlights

  • 64 cores and 128 threads handle massive parallel workloads
  • Base clock 2.25 GHz with max boost up to 3.4 GHz
  • 8-channel DDR4 support feeds memory-intensive applications
  • 128 lanes of PCIe 4.0 provide high-speed I/O bandwidth
  • 64 MB L3 cache reduces latency for large data sets

Specifications

BrandAMD
SeriesAMD EPYC 7002
NameEPYC 7742
CPU Socket TypeSocket SP3
# of Cores64-Core
# of Threads128
Operating Frequency2.25GHz
Max Turbo Frequency3.4GHz

Questions about this item

What motherboard socket and power budget do I need for the EPYC 7742 64-core 2.25 GHz SP3 225W processor?

The CPU fits Socket SP3 and has a default TDP of 120 W, though the supplier lists a 225 W rating for this unit.

Can I run my existing DDR4 memory with the 7742's 8-channel controller?

Yes, the processor supports 8 channels of DDR4, so compatible DDR4 DIMMs will work at supported speeds.

How do I verify all 64 cores and 128 threads are active after installation?

Check the OS task manager or run lscpu; it should report 64 cores and 128 threads at the 2.25 GHz base frequency.

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