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AMD EPYC 9254 vs AMD EPYC 9965: Comparison
EPYC 9254 vs EPYC 9965 l3 cache compared
On l3 cache the spread is 67%, EPYC 9254 128 MB against EPYC 9965 384 MB, so EPYC 9965 takes it. The benchmark result agrees. SPECrate® 2017 Integer (base), 1-chip puts EPYC 9965 81% ahead, 1,630 against 313. There is a split on core count as well, 24 cores on the EPYC 9254 versus 192 cores on the EPYC 9965. Thread count is not the same on both, 48 threads on the EPYC 9254 versus 384 threads on the EPYC 9965. Base clock is not the same on both, 2.9 GHz on the EPYC 9254 versus 2.25 GHz on the EPYC 9965. They differ on multi-socket support too, 1P / 2P on the EPYC 9254 versus Dual Socket on the EPYC 9965.
Who each one is for
Buy the EPYC 9254 for datacenter and cloud compute and virtualization-dense server workloads, though it is not the pick for consumer desktop builds and single-threaded latency-sensitive workloads on lower core-count SKUs. The EPYC 9965 is the one to take for extreme-density hyperscale cloud hosting and massive container orchestration clusters, though it is the wrong buy for small to mid-size deployments and single-thread or latency-sensitive workloads. 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
Everything else lines up. Memory channels, pcie lanes, socket and pcie generation read the same on both, so those are not worth weighing.
Frequently asked questions
Do the EPYC 9254 and EPYC 9965 differ on boost clock?
Yes. Boost Clock reads Up to 4.15 GHz on the EPYC 9254 versus 3.7 GHz on the EPYC 9965.
Specs and benchmarks
Release Year
- AMD EPYC 9254
- 2022
- AMD EPYC 9965
- 2024
Core Count
- AMD EPYC 9254
- 24 cores
- AMD EPYC 9965
- 192 cores
Thread Count
- AMD EPYC 9254
- 48 threads
- AMD EPYC 9965
- 384 threads
Base Clock
- AMD EPYC 9254
- 2.9 GHz
- AMD EPYC 9965
- 2.25 GHz
Boost Clock
- AMD EPYC 9254
- Up to 4.15 GHz
- AMD EPYC 9965
- 3.7 GHz
L3 Cache
- AMD EPYC 9254
- 128 MB-67%
- AMD EPYC 9965
- 384 MBBest
Socket
- AMD EPYC 9254
- SP5
- AMD EPYC 9965
- SP5
Multi-Socket Support
- AMD EPYC 9254
- 1P / 2P
- AMD EPYC 9965
- Dual Socket
Memory Channels
- AMD EPYC 9254
- 12 channels
- AMD EPYC 9965
- 12 channels
Max Memory Speed
- AMD EPYC 9254
- 4800 MT/s
- AMD EPYC 9965
- 6400 MT/sBest
PCIe Lanes
- AMD EPYC 9254
- 128 lanes
- AMD EPYC 9965
- 128 lanes
PCIe Generation
- AMD EPYC 9254
- PCIe 5.0
- AMD EPYC 9965
- PCIe 5.0
TDP
- AMD EPYC 9254
- 200 W
- AMD EPYC 9965
- 500 W
Memory Support
- AMD EPYC 9254
- DDR5, 12-Channel, Up to 4800 MT/s
- AMD EPYC 9965
- 12-channel ECC DDR5Best
Benchmarks
- General CPU
SPECrate® 2017 Integer (base), 1-chip
- AMD EPYC 9254
- 313-81%
- AMD EPYC 9965
- 1,630Best
Best published 1-chip result on spec.org, retrieved 23 Sept 2026.
Server-style tasks like compiling and compression on every thread. Best for judging workstation and server work.
SPECrate® 2017 Floating Point (base), 1-chip
- AMD EPYC 9254
- 368-71%
- AMD EPYC 9965
- 1,270Best
Best published 1-chip result on spec.org, retrieved 23 Sept 2026.
Scientific and engineering tasks on every thread. Rewards core count and memory bandwidth.
SPEC®, SPECrate® and SPECspeed® are registered trademarks of the Standard Performance Evaluation Corporation. Copied by permission of the Standard Performance Evaluation Corporation (SPEC). Results retrieved from www.spec.org on 23 Sept 2026.
Which one should you pick?
Choose 9254 if you want the higher memory channels (12 channels vs 12 channels) and the higher PCIe lanes (128 lanes vs 128 lanes).
Choose 9965 if you want the higher L3 cache (384 MB vs 128 MB), the higher SPECrate® 2017 integer (base), 1-chip (1,630 vs 313) and the higher SPECrate® 2017 floating point (base), 1-chip (1,270 vs 368).
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.