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AMD EPYC 8125P vs AMD EPYC 8434P: Comparison
What is the difference between EPYC 8125P and EPYC 8434P?
Boost clock is the dividing line, EPYC 8125P 4.5 GHz against EPYC 8434P 3.1 GHz. Measured rather than claimed: in SPECrate® 2017 Integer (base), 1-chip the EPYC 8434P returns 423 against 224, a 47% lead. They differ on tdp too, 125 W on the EPYC 8125P versus 200 W on the EPYC 8434P. There is a split on configurable tdp max as well, 120 W on the EPYC 8125P versus 155-225W on the EPYC 8434P. EPYC 8125P also leads on memory bandwidth, 307 GB/s on the EPYC 8125P versus 230.4 GB/s on the EPYC 8434P. They differ on product family too, EPYC 8005 Series on the EPYC 8125P versus EPYC 8004 Series on the EPYC 8434P. There is a split on release year as well, 2026 on the EPYC 8125P versus 2023 on the EPYC 8434P. Core count is not the same on both, 16 cores on the EPYC 8125P versus 48 cores on the EPYC 8434P. They differ on thread count too, 32 threads on the EPYC 8125P versus 96 threads on the EPYC 8434P. There is a split on core architecture as well, Zen 5 on the EPYC 8125P versus Zen 4c on the EPYC 8434P.
Which should you buy, EPYC 8125P or EPYC 8434P?
Buy the EPYC 8125P 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. The EPYC 8434P 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.
Where the two are identical
Where they agree, they agree completely, l3 cache, memory channels, pcie lanes, cpu socket and segment included, so the decision does not turn on any of those. They match on 6 further specifications as well.
Frequently asked questions
Do the EPYC 8125P and EPYC 8434P differ on base clock?
Yes. Base Clock reads 2.65 GHz on the EPYC 8125P versus 2.5 GHz on the EPYC 8434P.
Is the SMT Support the same on the EPYC 8125P and EPYC 8434P?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- AMD EPYC 8125P
- AMD
- AMD EPYC 8434P
- AMD
Model Number
- AMD EPYC 8125P
- 8125P
- AMD EPYC 8434P
- 8434P
CPU Socket
- AMD EPYC 8125P
- SP6
- AMD EPYC 8434P
- SP6
Product Family
- AMD EPYC 8125P
- EPYC 8005 Series
- AMD EPYC 8434P
- EPYC 8004 Series
Release Year
- AMD EPYC 8125P
- 2026
- AMD EPYC 8434P
- 2023
Segment
- AMD EPYC 8125P
- Data Center
- AMD EPYC 8434P
- Data Center
Core Count
- AMD EPYC 8125P
- 16 cores
- AMD EPYC 8434P
- 48 cores
Thread Count
- AMD EPYC 8125P
- 32 threads
- AMD EPYC 8434P
- 96 threads
Core Architecture
- AMD EPYC 8125P
- Zen 5
- AMD EPYC 8434P
- Zen 4c
SMT Support
- AMD EPYC 8125P
- Yes
- AMD EPYC 8434P
- Yes
Base Clock
- AMD EPYC 8125P
- 2.65 GHz
- AMD EPYC 8434P
- 2.5 GHz
Boost Clock
- AMD EPYC 8125P
- 4.5 GHz
- AMD EPYC 8434P
- 3.1 GHz
All-Core Boost
- AMD EPYC 8125P
- 3.8 GHz
- AMD EPYC 8434P
- 3.1 GHz
L3 Cache
- AMD EPYC 8125P
- 128 MB
- AMD EPYC 8434P
- 128 MB
Socket
- AMD EPYC 8125P
- SP6
- AMD EPYC 8434P
- SP6
Multi-Socket Support
- AMD EPYC 8125P
- Single Socket Only
- AMD EPYC 8434P
- Single Socket Only
Memory Channels
- AMD EPYC 8125P
- 6 channels
- AMD EPYC 8434P
- 6 channels
Max Memory Speed
- AMD EPYC 8125P
- 6400 MT/sBest
- AMD EPYC 8434P
- 4800 MT/s
ECC Support
- AMD EPYC 8125P
- Yes
- AMD EPYC 8434P
- Yes
PCIe Lanes
- AMD EPYC 8125P
- 96 lanes
- AMD EPYC 8434P
- 96 lanes
PCIe Generation
- AMD EPYC 8125P
- PCIe 5.0
- AMD EPYC 8434P
- PCIe 5.0
TDP
- AMD EPYC 8125P
- 125 W
- AMD EPYC 8434P
- 200 W
Configurable TDP Max
- AMD EPYC 8125P
- 120 W
- AMD EPYC 8434P
- 155-225W
AVX-512 Support
- AMD EPYC 8125P
- Yes
- AMD EPYC 8434P
- Yes
Memory Bandwidth
- AMD EPYC 8125P
- 307 GB/sBest
- AMD EPYC 8434P
- 230.4 GB/s-25%
PCIe
- AMD EPYC 8125P
- PCIe 5.0, 96 lanes
- AMD EPYC 8434P
- PCIe 5.0 x96
Memory Support
- AMD EPYC 8125P
- DDR5, 6-Channel, Up to 6400 MT/s
- AMD EPYC 8434P
- DDR5, 6-Channel, Up to 4800 MT/s
Launch Date
- AMD EPYC 8125P
- 5/19/2026
- AMD EPYC 8434P
- 09/18/2023
Benchmarks
- General CPU
SPECrate® 2017 Integer (base), 1-chip
- AMD EPYC 8125P
- 224-47%
- AMD EPYC 8434P
- 423Best
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 8125P
- 277-25%
- AMD EPYC 8434P
- 370Best
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 8125P if you want the higher L3 cache (128 MB vs 128 MB), the higher memory channels (6 channels vs 6 channels) and the higher PCIe lanes (96 lanes vs 96 lanes).
Choose 8434P if you want the higher SPECrate® 2017 integer (base), 1-chip (423 vs 224) and the higher SPECrate® 2017 floating point (base), 1-chip (370 vs 277).