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AMD EPYC 7642 vs AMD EPYC Embedded 7351: Comparison

What is the difference between EPYC 7642 and EPYC Embedded 7351?

L3 cache is where these two genuinely part company, EPYC 7642 256 MB against EPYC Embedded 7351 64 MB, a 75% lead for EPYC 7642. They differ on boost clock too, Up to 3.3 GHz on the EPYC 7642 versus 2.9 GHz on the EPYC Embedded 7351. They differ on tdp too, 225 W on the EPYC 7642 versus 155 W on the EPYC Embedded 7351. Core count is not the same on both, 48 cores on the EPYC 7642 versus 16 cores on the EPYC Embedded 7351. Thread count is not the same on both, 96 threads on the EPYC 7642 versus 32 threads on the EPYC Embedded 7351. There is a split on base clock as well, 2.3 GHz on the EPYC 7642 versus 2.4 GHz on the EPYC Embedded 7351.

Which should you buy, EPYC 7642 or EPYC Embedded 7351?

The EPYC 7642 suits datacenter and cloud compute and virtualization-dense server workloads, though it is not built for consumer desktop builds and single-threaded latency-sensitive workloads on lower core-count SKUs. The EPYC Embedded 7351 is the one to take for industrial and embedded system designs and long-lifecycle networking and edge-compute deployments, though it is the wrong buy for consumer desktop or gaming builds and DIY PC upgrades.

What EPYC 7642 and EPYC Embedded 7351 have in common

The common ground is wider than the gap: pcie lanes and socket are identical here.

AMD EPYC 7642
AMD
AMD EPYC 7642
AMD EPYC Embedded 7351
AMD
AMD EPYC Embedded 7351

Specs and benchmarks

  • Core Count

    AMD EPYC 7642
    48 cores
    AMD EPYC Embedded 7351
    16 cores

  • Thread Count

    AMD EPYC 7642
    96 threads
    AMD EPYC Embedded 7351
    32 threads

  • Base Clock

    AMD EPYC 7642
    2.3 GHz
    AMD EPYC Embedded 7351
    2.4 GHz

  • Boost Clock

    AMD EPYC 7642
    Up to 3.3 GHz
    AMD EPYC Embedded 7351
    2.9 GHz

  • L3 Cache

    AMD EPYC 7642
    256 MBBest
    AMD EPYC Embedded 7351
    64 MB-75%

  • Socket

    AMD EPYC 7642
    SP3
    AMD EPYC Embedded 7351
    SP3

  • PCIe Lanes

    AMD EPYC 7642
    128 lanes
    AMD EPYC Embedded 7351
    128 lanes

  • TDP

    AMD EPYC 7642
    225 W
    AMD EPYC Embedded 7351
    155 W

    Which one should you pick?

    Choose 7642 if you want the higher L3 cache (256 MB vs 64 MB) and the higher PCIe lanes (128 lanes vs 128 lanes).

    Choose 7351 if you already have it on hand or find it at a lower price.