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AMD EPYC 9356 vs AMD EPYC 9456P: Comparison

EPYC 9356 vs EPYC 9456P l3 cache compared

On l3 cache the spread is 25%, EPYC 9356 192 MB against EPYC 9456P 256 MB, so EPYC 9456P takes it. There is a split on boost clock as well, 4.5 GHz on the EPYC 9356 versus 3.7 GHz on the EPYC 9456P. There is a split on tdp as well, 250 W on the EPYC 9356 versus 265 W on the EPYC 9456P. Core count is not the same on both, 32 cores on the EPYC 9356 versus 48 cores on the EPYC 9456P. Thread count is not the same on both, 64 threads on the EPYC 9356 versus 96 threads on the EPYC 9456P. They differ on base clock too, 3.6 GHz on the EPYC 9356 versus 3.2 GHz on the EPYC 9456P. They differ on multi-socket support too, Dual Socket on the EPYC 9356 versus Single Socket Only on the EPYC 9456P.

Who each one is for

The EPYC 9356 is the one to take for datacenter and cloud compute and virtualization-dense server workloads, though it is not the pick for consumer desktop builds and single-threaded latency-sensitive workloads on lower core-count SKUs. The EPYC 9456P suits datacenter and cloud compute and virtualization-dense server workloads, though it is the wrong buy for consumer desktop builds and single-threaded latency-sensitive workloads on lower core-count SKUs.

Where the two are identical

The common ground is wider than the gap: configurable tdp max, memory channels, pcie lanes, cpu socket and product family are identical here. They match on 10 further specifications as well.

Frequently asked questions

Is the Segment the same on the EPYC 9356 and EPYC 9456P?

It is. Both are listed at Data Center, so it is not a reason to pick one over the other.

AMD EPYC 9356
AMD
AMD EPYC 9356AnnouncedAnnounced July 2026. Expected first half of 2027.
AMD EPYC 9456P
AMD
AMD EPYC 9456PAnnouncedAnnounced July 2026. Expected first half of 2027.

Specs and benchmarks

  • Brand

    AMD EPYC 9356
    AMD
    AMD EPYC 9456P
    AMD
  • Model Number

    AMD EPYC 9356
    9356
    AMD EPYC 9456P
    9456P
  • CPU Socket

    AMD EPYC 9356
    SP8
    AMD EPYC 9456P
    SP8
  • Product Family

    AMD EPYC 9356
    EPYC 9006 Series
    AMD EPYC 9456P
    EPYC 9006 Series
  • Segment

    AMD EPYC 9356
    Data Center
    AMD EPYC 9456P
    Data Center
  • Core Count

    AMD EPYC 9356
    32 cores
    AMD EPYC 9456P
    48 cores
  • Thread Count

    AMD EPYC 9356
    64 threads
    AMD EPYC 9456P
    96 threads
  • SMT Support

    AMD EPYC 9356
    Yes
    AMD EPYC 9456P
    Yes
  • Base Clock

    AMD EPYC 9356
    3.6 GHz
    AMD EPYC 9456P
    3.2 GHz
  • Boost Clock

    AMD EPYC 9356
    4.5 GHz
    AMD EPYC 9456P
    3.7 GHz
  • L3 Cache

    AMD EPYC 9356
    192 MB-25%
    AMD EPYC 9456P
    256 MBBest
  • Socket

    AMD EPYC 9356
    SP8
    AMD EPYC 9456P
    SP8
  • Multi-Socket Support

    AMD EPYC 9356
    Dual Socket
    AMD EPYC 9456P
    Single Socket Only
  • Memory Channels

    AMD EPYC 9356
    8 channels
    AMD EPYC 9456P
    8 channels
  • Memory Type

    AMD EPYC 9356
    DDR5 RDIMM
    AMD EPYC 9456P
    DDR5 RDIMM
  • Max Memory Speed

    AMD EPYC 9356
    8000 MT/s
    AMD EPYC 9456P
    8000 MT/s
  • Registered Memory Required

    AMD EPYC 9356
    Yes
    AMD EPYC 9456P
    Yes
  • PCIe Lanes

    AMD EPYC 9356
    128 lanes
    AMD EPYC 9456P
    128 lanes
  • PCIe Generation

    AMD EPYC 9356
    PCIe 6.0
    AMD EPYC 9456P
    PCIe 6.0
  • TDP

    AMD EPYC 9356
    250 W
    AMD EPYC 9456P
    265 W
  • Configurable TDP Max

    AMD EPYC 9356
    300 W
    AMD EPYC 9456P
    300 W
  • Memory Bandwidth

    AMD EPYC 9356
    512 GB/s / 819.2 GB/s
    AMD EPYC 9456P
    512 GB/s / 819.2 GB/s
  • PCIe

    AMD EPYC 9356
    PCIe 6.0 x128
    AMD EPYC 9456P
    PCIe 6.0 x128
  • Memory Support

    AMD EPYC 9356
    DDR5 RDIMM | MRDIMM, 8-Channel, Up to 8000 MT/s / Up to 12800 MT/s
    AMD EPYC 9456P
    DDR5 RDIMM | MRDIMM, 8-Channel, Up to 8000 MT/s / Up to 12800 MT/s

    Which one should you pick?

    Choose 9356 if you want the higher memory channels (8 channels vs 8 channels) and the higher PCIe lanes (128 lanes vs 128 lanes).

    Choose 9456P if you want the higher L3 cache (256 MB vs 192 MB).