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AMD EPYC 9455P vs AMD EPYC Embedded 9845: Comparison
EPYC 9455P vs EPYC Embedded 9845: the l3 cache difference
L3 cache is where these two genuinely part company, EPYC 9455P 256 MB against EPYC Embedded 9845 320 MB, a 20% lead for EPYC Embedded 9845. There is a split on boost clock as well, 4.35 GHz on the EPYC 9455P versus 3.7 GHz on the EPYC Embedded 9845. There is a split on tdp as well, 280 W on the EPYC 9455P versus 390 W on the EPYC Embedded 9845. They differ on core count too, 48 cores on the EPYC 9455P versus 160 cores on the EPYC Embedded 9845. They differ on thread count too, 96 threads on the EPYC 9455P versus 320 threads on the EPYC Embedded 9845. Core architecture is not the same on both, Zen 5 "Turin" on the EPYC 9455P versus Zen 5c on the EPYC Embedded 9845. Base clock is not the same on both, 3.15 GHz on the EPYC 9455P versus 2.1 GHz on the EPYC Embedded 9845. There is a split on multi-socket support as well, 1P on the EPYC 9455P versus Dual Socket on the EPYC Embedded 9845.
EPYC 9455P vs EPYC Embedded 9845: which one fits your build
The EPYC 9455P is the one to take for virtualization hosts and database servers, though it is the wrong buy for cost-sensitive small deployments and single-threaded legacy applications. Buy the EPYC Embedded 9845 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 9455P (8.8/10): the EPYC 9455P is a well-rounded high-core-count EPYC SKU that balances density, clocks, and power draw for mainstream data center use.
What EPYC 9455P and EPYC Embedded 9845 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 9455P
- 48 cores
- AMD EPYC Embedded 9845
- 160 cores
Thread Count
- AMD EPYC 9455P
- 96 threads
- AMD EPYC Embedded 9845
- 320 threads
Core Architecture
- AMD EPYC 9455P
- Zen 5 "Turin"
- AMD EPYC Embedded 9845
- Zen 5c
Base Clock
- AMD EPYC 9455P
- 3.15 GHz
- AMD EPYC Embedded 9845
- 2.1 GHz
Boost Clock
- AMD EPYC 9455P
- 4.35 GHz
- AMD EPYC Embedded 9845
- 3.7 GHz
L3 Cache
- AMD EPYC 9455P
- 256 MB-20%
- AMD EPYC Embedded 9845
- 320 MBBest
Socket
- AMD EPYC 9455P
- SP5
- AMD EPYC Embedded 9845
- SP5
Multi-Socket Support
- AMD EPYC 9455P
- 1P (single-socket optimized)
- AMD EPYC Embedded 9845
- Dual Socket
Memory Channels
- AMD EPYC 9455P
- 12 channels
- AMD EPYC Embedded 9845
- 12 channels
ECC Support
- AMD EPYC 9455P
- Yes
- AMD EPYC Embedded 9845
- Yes
TDP
- AMD EPYC 9455P
- 280 W
- AMD EPYC Embedded 9845
- 390 W
Which one should you pick?
Choose 9455P 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 9455P
8.8 / 10 Expert Rating
The EPYC 9455P is a well-rounded high-core-count EPYC SKU that balances density, clocks, and power draw for mainstream data center use.