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AMD EPYC 7551P vs AMD EPYC Embedded 7251: Comparison
EPYC 7551P vs EPYC Embedded 7251: the l3 cache difference
Start with l3 cache, because it is the widest measured gap between them: EPYC 7551P 64 MB against EPYC Embedded 7251 32 MB, 50% in favour of EPYC 7551P. There is a split on boost clock as well, Up to 3 GHz on the EPYC 7551P versus 2.9 GHz on the EPYC Embedded 7251. They differ on tdp too, 180 W on the EPYC 7551P versus 120 W on the EPYC Embedded 7251. Core count is not the same on both, 32 cores on the EPYC 7551P versus 8 cores on the EPYC Embedded 7251. They differ on thread count too, 64 threads on the EPYC 7551P versus 16 threads on the EPYC Embedded 7251. Base clock is not the same on both, 2 GHz on the EPYC 7551P versus 2.1 GHz on the EPYC Embedded 7251.
Who each one is for
The EPYC 7551P is the one to take for 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. Buy the EPYC Embedded 7251 for industrial and embedded system designs and long-lifecycle networking and edge-compute deployments, though it is not the pick for consumer desktop or gaming builds and DIY PC upgrades.
What EPYC 7551P and EPYC Embedded 7251 have in common
The common ground is wider than the gap: pcie lanes and socket are identical here.
Specs and benchmarks
Core Count
- AMD EPYC 7551P
- 32 cores
- AMD EPYC Embedded 7251
- 8 cores
Thread Count
- AMD EPYC 7551P
- 64 threads
- AMD EPYC Embedded 7251
- 16 threads
Base Clock
- AMD EPYC 7551P
- 2 GHz
- AMD EPYC Embedded 7251
- 2.1 GHz
Boost Clock
- AMD EPYC 7551P
- Up to 3 GHz
- AMD EPYC Embedded 7251
- 2.9 GHz
L3 Cache
- AMD EPYC 7551P
- 64 MBBest
- AMD EPYC Embedded 7251
- 32 MB-50%
Socket
- AMD EPYC 7551P
- SP3
- AMD EPYC Embedded 7251
- SP3
PCIe Lanes
- AMD EPYC 7551P
- 128 lanes
- AMD EPYC Embedded 7251
- 128 lanes
TDP
- AMD EPYC 7551P
- 180 W
- AMD EPYC Embedded 7251
- 120 W
Which one should you pick?
Choose 7551P if you want the higher L3 cache (64 MB vs 32 MB) and the higher PCIe lanes (128 lanes vs 128 lanes).
Choose 7251 if you already have it on hand or find it at a lower price.