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AMD EPYC 9565 vs AMD EPYC 9965: Comparison
EPYC 9565 vs EPYC 9965 boost clock compared
Boost clock is the dividing line, EPYC 9565 Up to 4.3 GHz against EPYC 9965 3.7 GHz. Measured rather than claimed: in SPECrate® 2017 Integer (base), 1-chip the EPYC 9965 returns 1,630 against 952, a 42% lead. There is a split on tdp as well, 400 W on the EPYC 9565 versus 500 W on the EPYC 9965. There is a split on core count as well, 72 cores on the EPYC 9565 versus 192 cores on the EPYC 9965. They differ on thread count too, 144 threads on the EPYC 9565 versus 384 threads on the EPYC 9965. They differ on base clock too, 3.15 GHz on the EPYC 9565 versus 2.25 GHz on the EPYC 9965. Multi-socket support is not the same on both, 1P / 2P on the EPYC 9565 versus Dual Socket on the EPYC 9965. On memory support there is little in it, DDR5, 12-Channel, Up to 6400 MT/s on the EPYC 9565 versus 12-channel ECC DDR5 on the EPYC 9965.
Which should you buy, EPYC 9565 or EPYC 9965?
The EPYC 9565 is the one to take for datacenter and cloud compute and virtualization-dense server workloads, though it is not built for consumer desktop builds and single-threaded latency-sensitive workloads on lower core-count SKUs. Buy the EPYC 9965 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.
What EPYC 9565 and EPYC 9965 have in common
Everything else lines up. L3 cache, memory channels, pcie lanes, release year and socket read the same on both, so those are not worth weighing. They match on 2 further specifications as well.
Frequently asked questions
Is the Max Memory Speed the same on the EPYC 9565 and EPYC 9965?
It is. Both are listed at 6400 MT/s, so it is not a reason to pick one over the other.
Specs and benchmarks
Release Year
- AMD EPYC 9565
- 2024
- AMD EPYC 9965
- 2024
Core Count
- AMD EPYC 9565
- 72 cores
- AMD EPYC 9965
- 192 cores
Thread Count
- AMD EPYC 9565
- 144 threads
- AMD EPYC 9965
- 384 threads
Base Clock
- AMD EPYC 9565
- 3.15 GHz
- AMD EPYC 9965
- 2.25 GHz
Boost Clock
- AMD EPYC 9565
- Up to 4.3 GHz
- AMD EPYC 9965
- 3.7 GHz
L3 Cache
- AMD EPYC 9565
- 384 MB
- AMD EPYC 9965
- 384 MB
Socket
- AMD EPYC 9565
- SP5
- AMD EPYC 9965
- SP5
Multi-Socket Support
- AMD EPYC 9565
- 1P / 2P
- AMD EPYC 9965
- Dual Socket
Memory Channels
- AMD EPYC 9565
- 12 channels
- AMD EPYC 9965
- 12 channels
Max Memory Speed
- AMD EPYC 9565
- 6400 MT/s
- AMD EPYC 9965
- 6400 MT/s
PCIe Lanes
- AMD EPYC 9565
- 128 lanes
- AMD EPYC 9965
- 128 lanes
PCIe Generation
- AMD EPYC 9565
- PCIe 5.0
- AMD EPYC 9965
- PCIe 5.0
TDP
- AMD EPYC 9565
- 400 W
- AMD EPYC 9965
- 500 W
Memory Support
- AMD EPYC 9565
- DDR5, 12-Channel, Up to 6400 MT/s
- AMD EPYC 9965
- 12-channel ECC DDR5Best
Benchmarks
- General CPU
SPECrate® 2017 Integer (base), 1-chip
- AMD EPYC 9565
- 952-42%
- 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 9565
- 973-23%
- 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 9565 if you want the higher L3 cache (384 MB vs 384 MB), 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 SPECrate® 2017 integer (base), 1-chip (1,630 vs 952) and the higher SPECrate® 2017 floating point (base), 1-chip (1,270 vs 973).
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.