AMD® EPYC™ 9D25
The AMD EPYC 9D25 is a server processor released in 2025. It has 126 cores and 252 threads and 256 MB of L3 cache.
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Overview
SummaryThe AMD EPYC 9D25 is a server processor with 126 cores and 252 threads. It launched in 2025. A 256-MB L3 cache backs the cores (3.1 MB per core).
Performance
10 metricsThe AMD EPYC 9D25 scores 2,481 in single-core performance and 114,275 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 16,838 for overall performance, 77,752 for productivity performance, 67,317 for creator performance, 159,985 for engineering performance and 36,012 for gaming performance. Its multi-core throughput works out to 907 per core and 453 per thread. Its performance index is 209, so its overall performance is 109% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.
How these scores are computed
Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.
- Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
- Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
- Creator performance is 0.55 times multi-core plus 1.8 times single-core.
- Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
- Gaming performance is 3 times single-core plus 0.25 times multi-core.
- Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
- The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
- The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.
Workload Benchmarks
8 workloadsScores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.
In the individual workload tests the AMD EPYC 9D25 scores 1,045,643 in integer math, 686,860 in floating-point math, 3,284,099 in compression, 185,072 in cryptography, 12,472 in physics simulation, 244,033 in vector SIMD, 846 in the prime sieve and 349,748 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 1,675% above in integer math, 1,396% above in floating-point math, 1,340% above in compression, 1,511% above in cryptography, 1,044% above in physics simulation, 1,473% above in vector SIMD, 1,163% above in the prime sieve and 1,444% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.
Core Configuration
3 specsThe AMD EPYC 9D25 has 126 physical cores and runs 252 logical threads. It runs 2 threads per core.
Architecture & Generation
5 specsThe AMD EPYC 9D25 is a server processor and belongs to the AMD EPYC family. It launched in 2025.
Cache
6 specsThe AMD EPYC 9D25 has 9.84 MB of L1 cache, 126 MB of L2 cache and 256 MB of L3 cache. That adds up to about 391.8 MB of cache, or 3.11 MB per core. Each core has 1 MB of private L2 cache.
Cache Hierarchy
3 levelsThe AMD EPYC 9D25 has a 3-level cache hierarchy: L1 at 9.8 MB, L2 at 126 MB and L3 at 256 MB. L3 is the largest level and makes up about 65% of the cache listed here.
Graphics
1 specThe AMD EPYC 9D25 does not include integrated graphics, so a discrete graphics card is required for display output.
Platform Capabilities
1 supported, 0 not supportedInstruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.
Instruction Sets
0 supportedSecurity and Reliability
0 supportedVirtualization
0 supportedOS Compatibility
1 supportedFeex has no record for AES-NI, AVX-512, AVX2, AVX, AVX-VNNI and CET, which is different from being unsupported.
Feex has no record for AMD SEV, AMD SME, Control-flow Enforcement (CET), Execute Disable (NX), Memory Encryption and SMAP, which is different from being unsupported.
Feex has no record for AMD SVM, AMD-V (Hardware Virtualization), NPT / RVI, IOMMU and Second-Level Address Translation, which is different from being unsupported.
Feex records the AMD EPYC 9D25 as Windows 11 eligible.
Naming & Aliases
3 specsReal-world compute in the Feex fleet
No machines yetNo Feex fleet machines with the AMD EPYC 9D25 have reported compute telemetry yet, so real-world compute for this processor is not recorded.
Data Coverage
31% recordedFeex has recorded 31% of the specifications it tracks for the AMD EPYC 9D25. Values Feex does not hold are shown as "Not recorded" rather than estimated.
Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L4 Cache. Memory Support: Max Memory, Memory Channels, Memory Bandwidth, Memory Types, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Platform & Compatibility: Socket, Package, Package Size, PCIe Generation and PCIe Lanes. Power & Thermals: TDP, Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.
Common questions
6 answeredHow many cores and threads does the AMD EPYC 9D25 have?
The AMD EPYC 9D25 has 126 cores and 252 threads.
Does the AMD EPYC 9D25 have integrated graphics?
No. The AMD EPYC 9D25 does not include integrated graphics.
How does the AMD EPYC 9D25 perform?
In the Feex normalized performance dataset, the AMD EPYC 9D25 scores 114,275 multi-core and 2,481 single-core.
What is the AMD EPYC 9D25 best for?
Based on its specifications, the AMD EPYC 9D25 is well suited for Workstation & rendering workloads, Heavy parallel simulation & compilation, Server / professional infrastructure.
How much cache does the AMD EPYC 9D25 have?
The AMD EPYC 9D25 has 10080 KB of L1 cache, 129024 KB of L2 cache and 256 MB of L3 cache.
How does the AMD EPYC 9D25 compare with the Intel Core i5-12400?
The AMD EPYC 9D25 has a computed performance index of 209, which is 109% above the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.