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AMD EPYC 8434PN vs AMD EPYC 8635P: Comparison
EPYC 8434PN vs EPYC 8635P l3 cache compared
The gap that matters here is l3 cache: EPYC 8434PN 128 MB against EPYC 8635P 384 MB, which puts EPYC 8635P 67% ahead. SPECrate® 2017 Integer (base), 1-chip backs the spec sheet up. EPYC 8635P scores 667 to 406, 39% clear. They differ on boost clock too, 3 GHz on the EPYC 8434PN versus 4.5 GHz on the EPYC 8635P. There is a split on tdp as well, 155 W on the EPYC 8434PN versus 225 W on the EPYC 8635P. EPYC 8635P also leads on memory bandwidth, 230.4 GB/s on the EPYC 8434PN versus 307 GB/s on the EPYC 8635P. They differ on product family too, EPYC 8004 Series on the EPYC 8434PN versus EPYC 8005 Series on the EPYC 8635P. There is a split on release year as well, 2023 on the EPYC 8434PN versus 2026 on the EPYC 8635P. Core count is not the same on both, 48 cores on the EPYC 8434PN versus 84 cores on the EPYC 8635P. They differ on thread count too, 96 threads on the EPYC 8434PN versus 168 threads on the EPYC 8635P. They differ on core architecture too, Zen 4c on the EPYC 8434PN versus Zen 5 on the EPYC 8635P.
EPYC 8434PN vs EPYC 8635P: which one fits your build
The EPYC 8434PN is the one to take 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 8635P suits datacenter and cloud compute and virtualization-dense server workloads, though it is the wrong buy for consumer desktop builds and single-threaded latency-sensitive workloads on lower core-count SKUs.
Where the two are identical
Everything else lines up. Memory channels, pcie lanes, cpu socket, segment and smt support read the same on both, so those are not worth weighing. They match on 5 further specifications as well.
Frequently asked questions
Do the EPYC 8434PN and EPYC 8635P differ on base clock?
Yes. Base Clock reads 2 GHz on the EPYC 8434PN versus 1.6 GHz on the EPYC 8635P.
Is the Multi-Socket Support the same on the EPYC 8434PN and EPYC 8635P?
It is. Both are listed at Single Socket Only, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- AMD EPYC 8434PN
- AMD
- AMD EPYC 8635P
- AMD
Model Number
- AMD EPYC 8434PN
- 8434PN
- AMD EPYC 8635P
- 8635P
CPU Socket
- AMD EPYC 8434PN
- SP6
- AMD EPYC 8635P
- SP6
Product Family
- AMD EPYC 8434PN
- EPYC 8004 Series
- AMD EPYC 8635P
- EPYC 8005 Series
Release Year
- AMD EPYC 8434PN
- 2023
- AMD EPYC 8635P
- 2026
Segment
- AMD EPYC 8434PN
- Data Center
- AMD EPYC 8635P
- Data Center
Core Count
- AMD EPYC 8434PN
- 48 cores
- AMD EPYC 8635P
- 84 cores
Thread Count
- AMD EPYC 8434PN
- 96 threads
- AMD EPYC 8635P
- 168 threads
Core Architecture
- AMD EPYC 8434PN
- Zen 4c
- AMD EPYC 8635P
- Zen 5
SMT Support
- AMD EPYC 8434PN
- Yes
- AMD EPYC 8635P
- Yes
Base Clock
- AMD EPYC 8434PN
- 2 GHz
- AMD EPYC 8635P
- 1.6 GHz
Boost Clock
- AMD EPYC 8434PN
- 3 GHz
- AMD EPYC 8635P
- 4.5 GHz
All-Core Boost
- AMD EPYC 8434PN
- 3 GHz
- AMD EPYC 8635P
- 3.45 GHz
L3 Cache
- AMD EPYC 8434PN
- 128 MB-67%
- AMD EPYC 8635P
- 384 MBBest
Socket
- AMD EPYC 8434PN
- SP6
- AMD EPYC 8635P
- SP6
Multi-Socket Support
- AMD EPYC 8434PN
- Single Socket Only
- AMD EPYC 8635P
- Single Socket Only
Memory Channels
- AMD EPYC 8434PN
- 6 channels
- AMD EPYC 8635P
- 6 channels
Max Memory Speed
- AMD EPYC 8434PN
- 4800 MT/s
- AMD EPYC 8635P
- 6400 MT/sBest
ECC Support
- AMD EPYC 8434PN
- Yes
- AMD EPYC 8635P
- Yes
PCIe Lanes
- AMD EPYC 8434PN
- 96 lanes
- AMD EPYC 8635P
- 96 lanes
PCIe Generation
- AMD EPYC 8434PN
- PCIe 5.0
- AMD EPYC 8635P
- PCIe 5.0
TDP
- AMD EPYC 8434PN
- 155 W
- AMD EPYC 8635P
- 225 W
AVX-512 Support
- AMD EPYC 8434PN
- Yes
- AMD EPYC 8635P
- Yes
Memory Bandwidth
- AMD EPYC 8434PN
- 230.4 GB/s-25%
- AMD EPYC 8635P
- 307 GB/sBest
PCIe
- AMD EPYC 8434PN
- PCIe 5.0 x96
- AMD EPYC 8635P
- PCIe 5.0, 96 lanes
Memory Support
- AMD EPYC 8434PN
- DDR5, 6-Channel, Up to 4800 MT/s
- AMD EPYC 8635P
- DDR5, 6-Channel, Up to 6400 MT/s
Launch Date
- AMD EPYC 8434PN
- 09/18/2023
- AMD EPYC 8635P
- 5/19/2026
Benchmarks
- General CPU
SPECrate® 2017 Integer (base), 1-chip
- AMD EPYC 8434PN
- 406-39%
- AMD EPYC 8635P
- 667Best
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 8434PN
- 359-40%
- AMD EPYC 8635P
- 594Best
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 8434PN if you want the higher memory channels (6 channels vs 6 channels) and the higher PCIe lanes (96 lanes vs 96 lanes).
Choose 8635P if you want the higher L3 cache (384 MB vs 128 MB), the higher memory bandwidth (307 GB/s vs 230.4 GB/s) and the higher SPECrate® 2017 integer (base), 1-chip (667 vs 406).
Price comparison
| Retailer | AMD EPYC 8434PN | AMD EPYC 8635P |
|---|---|---|
| Consumercarts listing | $5,799.00 View on Consumercarts listing |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.