AMD EPYC 9655P
- Brand:
- AMD
- Form Factor:
- Server & Enthusiast
- CPU Socket:
- SP5
- Core/Thread Count:
- 96C/192T
- TDP:
- 400W
- CPU Series:
- EPYC 9005 Series
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Manufacturer: AMD Last updated: October 9, 2026
AMD EPYC 9655P Review
AMD EPYC 9655P server processor, 96C/192T 2.6 GHz base clock, boosting up to 4.5 ghz, 400W TDP, SP5 platform.
The AMD EPYC 9655P is an AMD EPYC server processor in the EPYC 9005 Series lineup, offering 96C/192T running at 2.6 GHz base clock, boosting up to 4.5 ghz with 384 MB of L3 cache, within a 400W power envelope on AMD's SP5 platform in 1P configurations.
Performance and Architecture
With 96C/192T, the AMD EPYC 9655P runs at 2.6 GHz base clock, boosting up to 4.5 ghz. It carries 384 MB of L3 cache to keep large working sets close to the cores. As part of AMD's EPYC server lineup, it targets dense multi-socket compute, virtualization, and datacenter workloads.
Platform and Memory
The AMD EPYC 9655P is built for AMD's SP5 platform, supporting 1P socket configurations. It supports DDR5 memory across 12 channels (Up to 6400 MT/s). I/O runs over PCIe 5.0 x128.
Comparison to Alternatives
Within the EPYC 9005 Series lineup in this catalog, the AMD EPYC 9655P is positioned by its core count, clock speed, and TDP relative to other EPYC parts in the same generation. Buyers should weigh core density against per-core clock speed depending on whether the target workload favors many parallel threads or fewer, faster ones.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Datacenter and cloud compute
- Virtualization-dense server workloads
- Multi-socket enterprise deployments
Not for
- Consumer desktop builds
- Single-threaded latency-sensitive workloads on lower core-count SKUs
- Budget-constrained small business servers
Specifications
What these specs meanIdentity
| Release Year | 2024 |
|---|
Cores and threads
| Core Count | 96 cores |
|---|---|
| Thread Count | 192 threads |
Clocks
| Base Clock | 2.6 GHz |
|---|---|
| Boost Clock | Up to 4.5 GHz |
| All-Core Boost | 4.1 GHz |
Cache
| L3 Cache | 384 MB |
|---|
Platform
| Socket | SP5 |
|---|---|
| Multi-Socket Support | 1P |
Memory
| Memory Channels | 12 channels |
|---|---|
| Max Memory Speed | 6400 MT/s |
| Memory Bandwidth | 614 GB/s |
PCIe and IO
| PCIe Lanes | 128 lanes |
|---|---|
| PCIe Generation | PCIe 5.0 |
Power and thermals
| TDP | 400 W |
|---|---|
| Configurable TDP Max | 320-400W |
Measured results
SPEC CPU 2017
Best published result on spec.org as of 23 Sept 2026.
| SPECrate® 2017 Integer (base) | 1,040 |
Cores 96 · Tested in Cisco UCS X215c M8 (AMD EPYC 9655P 2.60 GHz Processor) · Published by Cisco Systems, Jun-2025
Full disclosure on spec.org| SPECrate® 2017 Floating Point (base) | 984 |
Cores 96 · Tested in ProLiant DL325 Gen11 (2.60 GHz, AMD EPYC 9655P) · Published by Hewlett Packard Enterprise, May-2025
Full disclosure on spec.orgSPEC®, 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.
FAQs
What are the key specifications of the AMD EPYC 9655P?
The AMD EPYC 9655P has 96 cores and 192 threads, a 2.6 GHz base and 4.5 GHz boost clock, 384 MB of L3 cache and a 400 W TDP.
Who is the AMD EPYC 9655P best suited to?
Best suited to: Datacenter and cloud compute; Virtualization-dense server workloads; Multi-socket enterprise deployments.
What are the drawbacks of the AMD EPYC 9655P?
Not the best fit for: Consumer desktop builds; Single-threaded latency-sensitive workloads on lower core-count SKUs; Budget-constrained small business servers.