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AMD EPYC 7643 vs AMD EPYC Embedded 7402: Comparison
EPYC 7643 vs EPYC Embedded 7402 l3 cache compared
Start with l3 cache, because it is the widest measured gap between them: EPYC 7643 256 MB against EPYC Embedded 7402 128 MB, 50% in favour of EPYC 7643. There is a split on boost clock as well, Up to 3.6 GHz on the EPYC 7643 versus 3.35 GHz on the EPYC Embedded 7402. They differ on tdp too, 225 W on the EPYC 7643 versus 180 W on the EPYC Embedded 7402. Core count is not the same on both, 48 cores on the EPYC 7643 versus 24 cores on the EPYC Embedded 7402. They differ on thread count too, 96 threads on the EPYC 7643 versus 48 threads on the EPYC Embedded 7402. Base clock is not the same on both, 2.3 GHz on the EPYC 7643 versus 2.8 GHz on the EPYC Embedded 7402.
Which should you buy, EPYC 7643 or EPYC Embedded 7402?
Buy the EPYC 7643 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 Embedded 7402 suits industrial and embedded system designs and long-lifecycle networking and edge-compute deployments, though it is not built for consumer desktop or gaming builds and DIY PC upgrades.
What EPYC 7643 and EPYC Embedded 7402 have in common
Where they agree, they agree completely, pcie lanes and socket included, so the decision does not turn on any of those.
Specs and benchmarks
Core Count
- AMD EPYC 7643
- 48 cores
- AMD EPYC Embedded 7402
- 24 cores
Thread Count
- AMD EPYC 7643
- 96 threads
- AMD EPYC Embedded 7402
- 48 threads
Base Clock
- AMD EPYC 7643
- 2.3 GHz
- AMD EPYC Embedded 7402
- 2.8 GHz
Boost Clock
- AMD EPYC 7643
- Up to 3.6 GHz
- AMD EPYC Embedded 7402
- 3.35 GHz
L3 Cache
- AMD EPYC 7643
- 256 MBBest
- AMD EPYC Embedded 7402
- 128 MB-50%
Socket
- AMD EPYC 7643
- SP3
- AMD EPYC Embedded 7402
- SP3
PCIe Lanes
- AMD EPYC 7643
- 128 lanes
- AMD EPYC Embedded 7402
- 128 lanes
TDP
- AMD EPYC 7643
- 225 W
- AMD EPYC Embedded 7402
- 180 W
Which one should you pick?
Choose 7643 if you want the higher L3 cache (256 MB vs 128 MB) and the higher PCIe lanes (128 lanes vs 128 lanes).
Choose 7402 if you already have it on hand or find it at a lower price.