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AMD EPYC 9965 vs AMD EPYC Embedded 9255: Comparison
EPYC 9965 vs EPYC Embedded 9255: the l3 cache difference
The gap that matters here is l3 cache: EPYC 9965 384 MB against EPYC Embedded 9255 128 MB, which puts EPYC 9965 67% ahead. They differ on boost clock too, 3.7 GHz on the EPYC 9965 versus 4.3 GHz on the EPYC Embedded 9255. There is a split on tdp as well, 500 W on the EPYC 9965 versus 200 W on the EPYC Embedded 9255. Core count is not the same on both, 192 cores on the EPYC 9965 versus 24 cores on the EPYC Embedded 9255. They differ on thread count too, 384 threads on the EPYC 9965 versus 48 threads on the EPYC Embedded 9255. There is a split on core architecture as well, Zen 5c "Turin Dense" on the EPYC 9965 versus Zen 5 on the EPYC Embedded 9255. Base clock is not the same on both, 2.25 GHz on the EPYC 9965 versus 3.25 GHz on the EPYC Embedded 9255. They differ on multi-socket support too, Dual Socket on the EPYC 9965 versus 1P/2P on the EPYC Embedded 9255.
Which should you buy, EPYC 9965 or EPYC Embedded 9255?
Buy the EPYC 9965 for extreme-density hyperscale cloud hosting and massive container orchestration clusters, though it is not built for small to mid-size deployments and single-thread or latency-sensitive workloads. The EPYC Embedded 9255 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 9965 (9.4/10): the EPYC 9965 is AMD's absolute core-count flagship, justified only for the largest hyperscale deployments that can keep 192 cores genuinely busy.
Where the two are identical
Where they agree, they agree completely, socket included, so the decision does not turn on any of those.
Specs and benchmarks
Core Count
- AMD EPYC 9965
- 192 cores
- AMD EPYC Embedded 9255
- 24 cores
Thread Count
- AMD EPYC 9965
- 384 threads
- AMD EPYC Embedded 9255
- 48 threads
Core Architecture
- AMD EPYC 9965
- Zen 5c "Turin Dense"
- AMD EPYC Embedded 9255
- Zen 5
Base Clock
- AMD EPYC 9965
- 2.25 GHz
- AMD EPYC Embedded 9255
- 3.25 GHz
Boost Clock
- AMD EPYC 9965
- 3.7 GHz
- AMD EPYC Embedded 9255
- 4.3 GHz
L3 Cache
- AMD EPYC 9965
- 384 MBBest
- AMD EPYC Embedded 9255
- 128 MB-67%
Socket
- AMD EPYC 9965
- SP5
- AMD EPYC Embedded 9255
- SP5
Multi-Socket Support
- AMD EPYC 9965
- Dual Socket
- AMD EPYC Embedded 9255
- 1P/2P
TDP
- AMD EPYC 9965
- 500 W
- AMD EPYC Embedded 9255
- 200 W
Which one should you pick?
Choose 9965 if you want the higher L3 cache (384 MB vs 128 MB).
Choose 9255 if you already have it on hand or find it at a lower price.
Verdict
AMD EPYC 9965
9.4 / 10 Expert Rating
The EPYC 9965 is AMD's absolute core-count flagship, justified only for the largest hyperscale deployments that can keep 192 cores genuinely busy.