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AMD EPYC 9455 vs AMD EPYC Embedded 9745: Comparison
What is the difference between EPYC 9455 and EPYC Embedded 9745?
They are built to different briefs, and boost clock shows it, EPYC 9455 4.35 GHz against EPYC Embedded 9745 3.7 GHz. There is a split on tdp as well, 280 W on the EPYC 9455 versus 400 W on the EPYC Embedded 9745. There is a split on core count as well, 48 cores on the EPYC 9455 versus 128 cores on the EPYC Embedded 9745. Thread count is not the same on both, 96 threads on the EPYC 9455 versus 256 threads on the EPYC Embedded 9745. Core architecture is not the same on both, Zen 5 "Turin" on the EPYC 9455 versus Zen 5c on the EPYC Embedded 9745. They differ on base clock too, 3.15 GHz on the EPYC 9455 versus 2.4 GHz on the EPYC Embedded 9745. They differ on multi-socket support too, 1P/2P on the EPYC 9455 versus Dual Socket on the EPYC Embedded 9745.
EPYC 9455 vs EPYC Embedded 9745: which one fits your build
The EPYC 9455 suits virtualization hosts and database servers, though it is not built for cost-sensitive small deployments and single-threaded legacy applications. Buy the EPYC Embedded 9745 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 9455 (8.8/10): the EPYC 9455 is a well-rounded high-core-count EPYC SKU that balances density, clocks, and power draw for mainstream data center use.
Where the two are identical
Everything else lines up. L3 cache, memory channels, socket and ecc support read the same on both, so those are not worth weighing.
Specs and benchmarks
Core Count
- AMD EPYC 9455
- 48 cores
- AMD EPYC Embedded 9745
- 128 cores
Thread Count
- AMD EPYC 9455
- 96 threads
- AMD EPYC Embedded 9745
- 256 threads
Core Architecture
- AMD EPYC 9455
- Zen 5 "Turin"
- AMD EPYC Embedded 9745
- Zen 5c
Base Clock
- AMD EPYC 9455
- 3.15 GHz
- AMD EPYC Embedded 9745
- 2.4 GHz
Boost Clock
- AMD EPYC 9455
- 4.35 GHz
- AMD EPYC Embedded 9745
- 3.7 GHz
L3 Cache
- AMD EPYC 9455
- 256 MB
- AMD EPYC Embedded 9745
- 256 MB
Socket
- AMD EPYC 9455
- SP5
- AMD EPYC Embedded 9745
- SP5
Multi-Socket Support
- AMD EPYC 9455
- 1P/2P
- AMD EPYC Embedded 9745
- Dual Socket
Memory Channels
- AMD EPYC 9455
- 12 channels
- AMD EPYC Embedded 9745
- 12 channels
ECC Support
- AMD EPYC 9455
- Yes
- AMD EPYC Embedded 9745
- Yes
TDP
- AMD EPYC 9455
- 280 W
- AMD EPYC Embedded 9745
- 400 W
Which one should you pick?
Choose 9455 if you want the higher L3 cache (256 MB vs 256 MB) and the higher memory channels (12 channels vs 12 channels).
Choose 9745 if you already have it on hand or find it at a lower price.
Verdict
AMD EPYC 9455
8.8 / 10 Expert Rating
The EPYC 9455 is a well-rounded high-core-count EPYC SKU that balances density, clocks, and power draw for mainstream data center use.