AMD

AMD Ryzen 9 PRO 9955

AMD processor specifications and benchmark scores

12
Cores
24
Threads
5.4
GHz Boost
120W
TDP
Integrated GPU ECC Memory

At a Glance

AMD
Cores / Threads 12C / 24T
Boost Clock 5.4 GHz
Base Clock 3.4 GHz
L3 Cache 64 MB
TDP 120W
Socket AMD Socket AM5
nm
Process 4 nm
Released Jun 2026

AMD Ryzen 9 PRO 9955 Specifications

Ryzen 9 PRO 9955 Core Configuration

Processing cores and threading

The AMD Ryzen 9 PRO 9955 features 12 physical cores and 24 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
12
Threads
24
SMP CPUs
1

9 PRO 9955 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Ryzen 9 PRO 9955 benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Ryzen 9 PRO 9955 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.4 GHz
Boost Clock
5.4 GHz
Multiplier
34x

AMD's Ryzen 9 PRO 9955 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the 9 PRO 9955 processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Ryzen 9 PRO 9955's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
80 KB (per core)
L2 Cache
1 MB (per core)
L3 Cache
64 MB

AMD Architecture & Process

Manufacturing and design details

The AMD Ryzen 9 PRO 9955 is built on AMD's 4 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in 9 PRO 9955 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Codename
Granite Ridge
Process Node
4 nm
Foundry
TSMC
Transistors
16,630 million
Die Size
2x 70.6 mm²
Generation
Ryzen 9 (Zen 5 (Granite Ridge))

9 PRO 9955 Power & Thermal

TDP and power specifications

The AMD Ryzen 9 PRO 9955 has a TDP (Thermal Design Power) of 120W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
120W
PPT
162 W
Tj Max
95°C

AMD Socket AM5 Platform & Socket

Compatibility information

The Ryzen 9 PRO 9955 uses the AMD Socket AM5 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
AMD Socket AM5
Chipsets
X870E, X870, B850, B840, X670E, X670, B650E, B650, A620
PCIe
Gen 5, 24 Lanes(CPU only)
Package
FC-LGA1718
DDR5

AMD Socket AM5 Memory Support

RAM compatibility and speeds

Memory support specifications for the 9 PRO 9955 define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Ryzen 9 PRO 9955 determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR5
Memory Bus
Dual-channel
Memory Bandwidth
89.6 GB/s
ECC Memory
Supported

AMD's Ryzen 9 PRO 9955 Integrated Graphics

Built-in GPU specifications

The AMD Ryzen 9 PRO 9955 includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the 9 PRO 9955 provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
Radeon Graphics
Graphics Model
Radeon Graphics

Ryzen 9 PRO 9955 Product Information

Release and pricing details

The AMD Ryzen 9 PRO 9955 is manufactured by AMD and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Ryzen 9 PRO 9955 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Jun 2026
Market
Server/Workstation
Status
Active
Part Number
100-000001971
Bundled Cooler
None

Ryzen 9 PRO 9955 Benchmark Scores

passmark_data_compressionSource

Data compression measures how fast AMD Ryzen 9 PRO 9955 can compress and decompress files. This is important for archiving, backup software, and file transfer applications. Higher scores mean faster ZIP, RAR, and backup operations.

passmark_data_compression #112 of 689
684,470
12%
Max: 5,679,990
Compare with other CPUs

passmark_data_encryptionSource

Data encryption tests how fast AMD Ryzen 9 PRO 9955 can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications.

passmark_data_encryption #147 of 689
33,754
10%
Max: 348,449
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
348,449
#2 AMD EPYC 9845
296,808
#3 AMD EPYC 9755
284,927
#4 AMD EPYC 9754
231,891
#5 AMD EPYC 9745
229,447

passmark_extended_instructionsSource

Extended instructions tests AMD Ryzen 9 PRO 9955 performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads. Video encoding and image processing heavily utilize SIMD capabilities.

passmark_extended_instructions #95 of 689
54,903
14%
Max: 383,298
Compare with other CPUs

passmark_find_prime_numbersSource

Find prime numbers tests AMD Ryzen 9 PRO 9955 ability to identify primes through intensive calculations. This is a pure computational benchmark that stresses CPU arithmetic units without memory bottlenecks. The test reveals raw mathematical processing capability. Higher scores indicate superior arithmetic throughput independent of memory subsystem performance.

passmark_find_prime_numbers #77 of 689
461
19%
Max: 2,422

passmark_floating_point_mathSource

Floating point math measures how AMD Ryzen 9 PRO 9955 handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations. Game physics engines also rely heavily on floating point operations.

passmark_floating_point_math #129 of 689
121,509
11%
Max: 1,153,453
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
1,153,453
#2 AMD EPYC 9845
978,377
#3 AMD EPYC 9755
922,900
#4 AMD EPYC 9745
761,219

passmark_integer_mathSource

Integer math tests how fast AMD Ryzen 9 PRO 9955 processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance.

passmark_integer_math #114 of 689
182,312
9%
Max: 1,926,069
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
1,926,069
#2 AMD EPYC 9845
1,687,531
#3 AMD EPYC 9755
1,549,946
#4 AMD EPYC 9655P
1,225,251
#5 AMD EPYC 9745
1,224,315

passmark_multithreadSource

PassMark multi-thread tests AMD Ryzen 9 PRO 9955 across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score.

passmark_multithread #105 of 689
54,866
32%
Max: 171,200
Compare with other CPUs

Top 5 Performers

#2 AMD EPYC 9755
166,328
#3 AMD EPYC 9965
160,542
#4 AMD EPYC 9655P
160,490
#5 AMD EPYC 9655
156,110

passmark_physicsSource

Physics tests how AMD Ryzen 9 PRO 9955 handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements. Games with complex physics benefit from higher scores.

passmark_physics #122 of 689
3,332
12%
Max: 27,806
Compare with other CPUs

passmark_random_string_sortingSource

Random string sorting measures how fast AMD Ryzen 9 PRO 9955 can organize text data. This is important for database operations, search indexing, and data processing applications. Applications that process large amounts of text benefit from higher scores.

passmark_random_string_sorting #126 of 689
71,928
11%
Max: 633,030
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
633,030
#2 AMD EPYC 9755
571,185
#3 AMD EPYC 9845
538,060
#4 AMD EPYC 9745
468,975
#5 AMD EPYC 9655P
451,824

passmark_single_threadSource

PassMark single-thread measures per-core performance of AMD Ryzen 9 PRO 9955 across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use. Many legacy applications and games still depend heavily on single-thread speed.

passmark_single_thread #37 of 689
4,597
90%
Max: 5,087

passmark_singlethreadSource

PassMark single-thread measures per-core performance of AMD Ryzen 9 PRO 9955 across various computational tasks. This score is critical for gaming and single-threaded applications.

passmark_singlethread #37 of 689
4,597
90%
Max: 5,087

The Intel Equivalent of Ryzen 9 PRO 9955

Looking for a similar processor from Intel? The Intel Core i9-14901E offers comparable performance and features in the Intel lineup.

Intel Core i9-14901E

Intel • 8 Cores

View Specs Compare

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