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AMD EPYC 7663P vs AMD EPYC Embedded 7251: Comparison
What is the difference between EPYC 7663P and EPYC Embedded 7251?
Start with l3 cache, because it is the widest measured gap between them: EPYC 7663P 256 MB against EPYC Embedded 7251 32 MB, 88% in favour of EPYC 7663P. Boost clock is not the same on both, Up to 3.5 GHz on the EPYC 7663P versus 2.9 GHz on the EPYC Embedded 7251. There is a split on tdp as well, 240 W on the EPYC 7663P versus 120 W on the EPYC Embedded 7251. They differ on core count too, 56 cores on the EPYC 7663P versus 8 cores on the EPYC Embedded 7251. There is a split on thread count as well, 112 threads on the EPYC 7663P versus 16 threads on the EPYC Embedded 7251. They differ on base clock too, 2 GHz on the EPYC 7663P versus 2.1 GHz on the EPYC Embedded 7251.
EPYC 7663P vs EPYC Embedded 7251: which one fits your build
Buy the EPYC 7663P for 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 7251 suits 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 7663P and EPYC Embedded 7251 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 7663P
- 56 cores
- AMD EPYC Embedded 7251
- 8 cores
Thread Count
- AMD EPYC 7663P
- 112 threads
- AMD EPYC Embedded 7251
- 16 threads
Base Clock
- AMD EPYC 7663P
- 2 GHz
- AMD EPYC Embedded 7251
- 2.1 GHz
Boost Clock
- AMD EPYC 7663P
- Up to 3.5 GHz
- AMD EPYC Embedded 7251
- 2.9 GHz
L3 Cache
- AMD EPYC 7663P
- 256 MBBest
- AMD EPYC Embedded 7251
- 32 MB-87%
Socket
- AMD EPYC 7663P
- SP3
- AMD EPYC Embedded 7251
- SP3
PCIe Lanes
- AMD EPYC 7663P
- 128 lanes
- AMD EPYC Embedded 7251
- 128 lanes
TDP
- AMD EPYC 7663P
- 240 W
- AMD EPYC Embedded 7251
- 120 W
Which one should you pick?
Choose 7663P if you want the higher L3 cache (256 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.