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AMD EPYC 9745 vs AMD EPYC Embedded 9555P: Comparison
What is the difference between EPYC 9745 and EPYC Embedded 9555P?
L3 cache is where these two genuinely part company, EPYC 9745 384 MB against EPYC Embedded 9555P 256 MB, a 33% lead for EPYC 9745. They differ on boost clock too, 4.0 GHz on the EPYC 9745 versus 4.4 GHz on the EPYC Embedded 9555P. They differ on tdp too, 400 W on the EPYC 9745 versus 360 W on the EPYC Embedded 9555P. Core count is not the same on both, 128 cores on the EPYC 9745 versus 64 cores on the EPYC Embedded 9555P. They differ on thread count too, 256 threads on the EPYC 9745 versus 128 threads on the EPYC Embedded 9555P. Core architecture is not the same on both, Zen 5c "Turin Dense" on the EPYC 9745 versus Zen 5 on the EPYC Embedded 9555P. Base clock is not the same on both, 2.4 GHz on the EPYC 9745 versus 3.2 GHz on the EPYC Embedded 9555P. There is a split on multi-socket support as well, 1P/2P on the EPYC 9745 versus Single Socket Only on the EPYC Embedded 9555P.
EPYC 9745 vs EPYC Embedded 9555P: which one fits your build
The EPYC 9745 suits hyperscale cloud and VM hosting and container-dense Kubernetes nodes, though it is the wrong buy for small server deployments and per-core licensed software. The EPYC Embedded 9555P is the one to take 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. Our rating of the EPYC 9745 (9.1/10): the EPYC 9745 delivers 128-core density at a more power-conscious 400W, making it the efficiency-minded pick for hyperscale deployments.
What EPYC 9745 and EPYC Embedded 9555P have in common
Everything else lines up. Memory channels, socket and ecc support read the same on both, so those are not worth weighing.
Specs and benchmarks
Core Count
- AMD EPYC 9745
- 128 cores
- AMD EPYC Embedded 9555P
- 64 cores
Thread Count
- AMD EPYC 9745
- 256 threads
- AMD EPYC Embedded 9555P
- 128 threads
Core Architecture
- AMD EPYC 9745
- Zen 5c "Turin Dense"
- AMD EPYC Embedded 9555P
- Zen 5
Base Clock
- AMD EPYC 9745
- 2.4 GHz
- AMD EPYC Embedded 9555P
- 3.2 GHz
Boost Clock
- AMD EPYC 9745
- 4.0 GHz
- AMD EPYC Embedded 9555P
- 4.4 GHz
L3 Cache
- AMD EPYC 9745
- 384 MBBest
- AMD EPYC Embedded 9555P
- 256 MB-33%
Socket
- AMD EPYC 9745
- SP5
- AMD EPYC Embedded 9555P
- SP5
Multi-Socket Support
- AMD EPYC 9745
- 1P/2P
- AMD EPYC Embedded 9555P
- Single Socket Only
Memory Channels
- AMD EPYC 9745
- 12 channels
- AMD EPYC Embedded 9555P
- 12 channels
ECC Support
- AMD EPYC 9745
- Yes
- AMD EPYC Embedded 9555P
- Yes
TDP
- AMD EPYC 9745
- 400 W
- AMD EPYC Embedded 9555P
- 360 W
Which one should you pick?
Choose 9745 if you want the higher L3 cache (384 MB vs 256 MB) and the higher memory channels (12 channels vs 12 channels).
Choose 9555P if you already have it on hand or find it at a lower price.
Verdict
AMD EPYC 9745
9.1 / 10 Expert Rating
The EPYC 9745 delivers 128-core density at a more power-conscious 400W, making it the efficiency-minded pick for hyperscale deployments.