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AMD EPYC Embedded 9555P vs AMD EPYC Embedded 9654: Comparison
What is the difference between EPYC Embedded 9555P and EPYC Embedded 9654?
Start with l3 cache, because it is the widest measured gap between them: EPYC Embedded 9555P 256 MB against EPYC Embedded 9654 384 MB, 33% in favour of EPYC Embedded 9654. Boost clock is not the same on both, 4.4 GHz on the EPYC Embedded 9555P versus 3.7 GHz on the EPYC Embedded 9654. There is a split on core count as well, 64 cores on the EPYC Embedded 9555P versus 96 cores on the EPYC Embedded 9654. They differ on thread count too, 128 threads on the EPYC Embedded 9555P versus 192 threads on the EPYC Embedded 9654. Core architecture is not the same on both, Zen 5 on the EPYC Embedded 9555P versus Zen 4 on the EPYC Embedded 9654. There is a split on base clock as well, 3.2 GHz on the EPYC Embedded 9555P versus 2.4 GHz on the EPYC Embedded 9654. They differ on multi-socket support too, Single Socket Only on the EPYC Embedded 9555P versus 1P/2P on the EPYC Embedded 9654. Memory type is not the same on both, DDR5 RDIMM on the EPYC Embedded 9555P versus DDR5 on the EPYC Embedded 9654.
Which should you buy, EPYC Embedded 9555P or EPYC Embedded 9654?
Buy the EPYC Embedded 9555P for 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. The EPYC Embedded 9654 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 Embedded 9555P and EPYC Embedded 9654 have in common
The common ground is wider than the gap: tdp, pcie lanes and socket are identical here.
Specs and benchmarks
Core Count
- AMD EPYC Embedded 9555P
- 64 cores
- AMD EPYC Embedded 9654
- 96 cores
Thread Count
- AMD EPYC Embedded 9555P
- 128 threads
- AMD EPYC Embedded 9654
- 192 threads
Core Architecture
- AMD EPYC Embedded 9555P
- Zen 5
- AMD EPYC Embedded 9654
- Zen 4
Base Clock
- AMD EPYC Embedded 9555P
- 3.2 GHz
- AMD EPYC Embedded 9654
- 2.4 GHz
Boost Clock
- AMD EPYC Embedded 9555P
- 4.4 GHz
- AMD EPYC Embedded 9654
- 3.7 GHz
L3 Cache
- AMD EPYC Embedded 9555P
- 256 MB-33%
- AMD EPYC Embedded 9654
- 384 MBBest
Socket
- AMD EPYC Embedded 9555P
- SP5
- AMD EPYC Embedded 9654
- SP5
Multi-Socket Support
- AMD EPYC Embedded 9555P
- Single Socket Only
- AMD EPYC Embedded 9654
- 1P/2P
Memory Type
- AMD EPYC Embedded 9555P
- DDR5 RDIMM
- AMD EPYC Embedded 9654
- DDR5
PCIe Lanes
- AMD EPYC Embedded 9555P
- 128 lanes
- AMD EPYC Embedded 9654
- 128 lanes
TDP
- AMD EPYC Embedded 9555P
- 360 W
- AMD EPYC Embedded 9654
- 360 W
Which one should you pick?
Choose 9555P if you want the higher PCIe lanes (128 lanes vs 128 lanes).
Choose 9654 if you want the higher L3 cache (384 MB vs 256 MB).