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AMD EPYC 9455 vs AMD EPYC Embedded 9845: Comparison
EPYC 9455 vs EPYC Embedded 9845 l3 cache compared
Start with l3 cache, because it is the widest measured gap between them: EPYC 9455 256 MB against EPYC Embedded 9845 320 MB, 20% in favour of EPYC Embedded 9845. There is a split on boost clock as well, 4.35 GHz on the EPYC 9455 versus 3.7 GHz on the EPYC Embedded 9845. They differ on tdp too, 280 W on the EPYC 9455 versus 390 W on the EPYC Embedded 9845. Core count is not the same on both, 48 cores on the EPYC 9455 versus 160 cores on the EPYC Embedded 9845. There is a split on thread count as well, 96 threads on the EPYC 9455 versus 320 threads on the EPYC Embedded 9845. They differ on core architecture too, Zen 5 "Turin" on the EPYC 9455 versus Zen 5c on the EPYC Embedded 9845. Base clock is not the same on both, 3.15 GHz on the EPYC 9455 versus 2.1 GHz on the EPYC Embedded 9845. There is a split on multi-socket support as well, 1P/2P on the EPYC 9455 versus Dual Socket on the EPYC Embedded 9845.
Which should you buy, EPYC 9455 or EPYC Embedded 9845?
Buy the EPYC 9455 for virtualization hosts and database servers, though it is not built for cost-sensitive small deployments and single-threaded legacy applications. The EPYC Embedded 9845 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. 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.
What EPYC 9455 and EPYC Embedded 9845 have in common
The common ground is wider than the gap: memory channels, socket and ecc support are identical here.
Specs and benchmarks
Core Count
- AMD EPYC 9455
- 48 cores
- AMD EPYC Embedded 9845
- 160 cores
Thread Count
- AMD EPYC 9455
- 96 threads
- AMD EPYC Embedded 9845
- 320 threads
Core Architecture
- AMD EPYC 9455
- Zen 5 "Turin"
- AMD EPYC Embedded 9845
- Zen 5c
Base Clock
- AMD EPYC 9455
- 3.15 GHz
- AMD EPYC Embedded 9845
- 2.1 GHz
Boost Clock
- AMD EPYC 9455
- 4.35 GHz
- AMD EPYC Embedded 9845
- 3.7 GHz
L3 Cache
- AMD EPYC 9455
- 256 MB-20%
- AMD EPYC Embedded 9845
- 320 MBBest
Socket
- AMD EPYC 9455
- SP5
- AMD EPYC Embedded 9845
- SP5
Multi-Socket Support
- AMD EPYC 9455
- 1P/2P
- AMD EPYC Embedded 9845
- Dual Socket
Memory Channels
- AMD EPYC 9455
- 12 channels
- AMD EPYC Embedded 9845
- 12 channels
ECC Support
- AMD EPYC 9455
- Yes
- AMD EPYC Embedded 9845
- Yes
TDP
- AMD EPYC 9455
- 280 W
- AMD EPYC Embedded 9845
- 390 W
Which one should you pick?
Choose 9455 if you want the higher memory channels (12 channels vs 12 channels).
Choose 9845 if you want the higher L3 cache (320 MB vs 256 MB).
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.