Feex·CPU
AMD · EPYC · Server

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.

Cores
126
Threads
252
L3 Cache
256 MB
Integrated Graphics
Not supported
Multi-Core Performance
114,275
Single-Core Performance
2,481
Core layout
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126 Performance 252 Threads

Best for

Workstation & rendering workloadsHeavy parallel simulation & compilationServer / professional infrastructure

Overview

The 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

Overall CPU Performance computed
16,838
67% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
114,275
95% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
2,481
45% of reference
Reference ceiling 5,500
Productivity Performance computed
77,752
49% of reference
Reference ceiling 160,000
Creator Performance computed
67,317
48% of reference
Reference ceiling 140,000
Engineering Performance computed
159,985
80% of reference
Reference ceiling 200,000
Gaming Performance computed
36,012
100% of reference
Reference ceiling 22,000
Performance per Core computed
907
4% of reference
Reference ceiling 21,053
Performance per Thread computed
453
4% of reference
Reference ceiling 10,527
Performance index computed
209
Intel Core i5-12400 = 100

The 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

Scores 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.

Integer Math Throughput
1,045,643
100% of reference
Reference ceiling 617,811
1,675% above the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
686,860
100% of reference
Reference ceiling 600,000
1,396% above the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
3,284,099
100% of reference
Reference ceiling 2,309,868
1,340% above the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
185,072
100% of reference
Reference ceiling 137,106
1,511% above the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
12,472
100% of reference
Reference ceiling 12,291
1,044% above the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
244,033
100% of reference
Reference ceiling 172,975
1,473% above the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
846
79% of reference
Reference ceiling 1,067
1,163% above the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
349,748
100% of reference
Reference ceiling 260,323
1,444% above the Intel Core i5-12400 (22,652)
Random string sorting throughput.

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

Cores
126
Threads
252
Threads per Core
2
Base Clock
Not recorded
Boost Clock
Not recorded

The AMD EPYC 9D25 has 126 physical cores and runs 252 logical threads. It runs 2 threads per core.

Architecture & Generation

Manufacturer
AMD
Family
EPYC
Segment
Server
Generation
Not recorded
Architecture
Not recorded
Process Node
Not recorded
Lithography
Not recorded
Release Date
2025
Release quarter
Q4 2025

The AMD EPYC 9D25 is a server processor and belongs to the AMD EPYC family. It launched in 2025.

Cache

L1 Cache (Total)
9.8 MB
L2 Cache (Total)
126 MB
L2 Cache (per Core)
1 MB
L3 Cache
256 MB
Cache per Core
3.1 MB
Total Cache
391.8 MB

The 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

L1L2L3
L1 9.8 MBL2 126 MBL3 256 MB

The 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

Integrated Graphics
No

The AMD EPYC 9D25 does not include integrated graphics, so a discrete graphics card is required for display output.

Platform Capabilities

Instruction 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 supported
Not recorded
AES-NIAVX-512AVX2AVXAVX-VNNICET

Security and Reliability

0 supported
Not recorded
AMD SEVAMD SMEControl-flow Enforcement (CET)Execute Disable (NX)Memory EncryptionSMAP

Virtualization

0 supported
Not recorded
AMD SVMAMD-V (Hardware Virtualization)NPT / RVIIOMMUSecond-Level Address Translation

OS Compatibility

1 supported
Supported
Windows 11 eligible

Feex 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

Display Name
AMD® EPYC™ 9D25
Normalized Name
AMD® EPYC™ 9D25
Product line brand
EPYC

Real-world compute in the Feex fleet

No Feex fleet machines with the AMD EPYC 9D25 have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex 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

How 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.