AMD

AMD Ryzen Threadripper PRO 3955WX

AMD processor specifications and benchmark scores

16
Cores
32
Threads
4.3
GHz Boost
280W
TDP
🛡️ECC Memory

AMD Ryzen Threadripper PRO 3955WX Specifications

⚙️

Ryzen Threadripper PRO 3955WX Core Configuration

Processing cores and threading

The AMD Ryzen Threadripper PRO 3955WX features 16 physical cores and 32 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
16
Threads
32
SMP CPUs
1
⏱️

Threadripper PRO 3955WX Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Ryzen Threadripper PRO 3955WX 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 Threadripper PRO 3955WX by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.9 GHz
Boost Clock
4.3 GHz
Multiplier
39x
đź’ľ

AMD's Ryzen Threadripper PRO 3955WX Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Threadripper PRO 3955WX 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 Threadripper PRO 3955WX's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
512 KB (per core)
L3 Cache
64 MB
🏗️

Zen 2 Architecture & Process

Manufacturing and design details

The AMD Ryzen Threadripper PRO 3955WX is built on AMD's 7 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 Threadripper PRO 3955WX incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Zen 2
Codename
Castle Peak
Process Node
7 nm
Foundry
TSMC
Transistors
7,600 million
Die Size
2x 74 mm²
Generation
Ryzen Threadripper (Zen 2 (Castle Peak))
🔢

Zen 2 Instruction Set Features

Supported CPU instructions and extensions

The Ryzen Threadripper PRO 3955WX by AMD supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4A
SSE4.1
SSE4.2
AES
AVX
AVX2
BMI1
BMI2
SHA
F16C
FMA3
AMD64
AMD-V
SMAP
SMEP
SMT
Precision Boost 2
XFR 2
🔌

Threadripper PRO 3955WX Power & Thermal

TDP and power specifications

The AMD Ryzen Threadripper PRO 3955WX has a TDP (Thermal Design Power) of 280W, 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
280W
đź”§

AMD Socket WRX8 Platform & Socket

Compatibility information

The Ryzen Threadripper PRO 3955WX uses the AMD Socket WRX8 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 WRX8
PCIe
Gen 4, 128 Lanes(CPU only)
Package
sWRX8
DDR5

AMD Socket WRX8 Memory Support

RAM compatibility and speeds

Memory support specifications for the Threadripper PRO 3955WX 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 Threadripper PRO 3955WX 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
DDR4
Memory Bus
Eight-channel
Memory Bandwidth
204.8 GB/s
ECC Memory
Supported
📦

Ryzen Threadripper PRO 3955WX Product Information

Release and pricing details

The AMD Ryzen Threadripper PRO 3955WX 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 Threadripper PRO 3955WX by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Jul 2020
Launch Price
$1149
Market
Desktop
Status
Active
Part Number
100-000000167

Ryzen Threadripper PRO 3955WX Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how AMD Ryzen Threadripper PRO 3955WX performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #184 of 1788
3,440
23%
Max: 14,978

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how AMD Ryzen Threadripper PRO 3955WX handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance.

cinebench_cinebench_r15_singlecore #184 of 1245
485
23%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on AMD Ryzen Threadripper PRO 3955WX.

cinebench_cinebench_r20_multicore #184 of 1788
14,335
23%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of AMD Ryzen Threadripper PRO 3955WX.

cinebench_cinebench_r20_singlecore #184 of 1784
2,023
23%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of AMD Ryzen Threadripper PRO 3955WX after thermal limits kick in.

cinebench_cinebench_r23_multicore #184 of 1788
34,131
23%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how AMD Ryzen Threadripper PRO 3955WX maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #184 of 1788
4,818
23%
Max: 20,979

geekbench_multicoreSource

Geekbench multi-core tests AMD Ryzen Threadripper PRO 3955WX across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance.

geekbench_multicore #69 of 711
12,523
56%
Max: 22,515
Compare with other CPUs

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of AMD Ryzen Threadripper PRO 3955WX can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use.

geekbench_singlecore #207 of 711
1,684
50%
Max: 3,401

passmark_data_compressionSource

Data compression measures how fast AMD Ryzen Threadripper PRO 3955WX can compress and decompress files. This is important for archiving, backup software, and file transfer applications.

passmark_data_compression #93 of 528
601,738
11%
Max: 5,427,555
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
5,427,555
#2 AMD EPYC 9845
4,680,013
#3 AMD EPYC 9755
4,517,407
#4 AMD EPYC 9745
3,929,890

passmark_data_encryptionSource

Data encryption tests how fast AMD Ryzen Threadripper PRO 3955WX can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications. Modern CPUs with AES-NI hardware acceleration score significantly higher. Disk encryption, secure browsing, and VPN performance all benefit from faster encryption.

passmark_data_encryption #86 of 528
38,058
12%
Max: 316,606
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
316,606
#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 Threadripper PRO 3955WX performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads.

passmark_extended_instructions #106 of 528
38,952
10%
Max: 392,159
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
392,159
#2 AMD EPYC 9845
314,798
#3 AMD EPYC 9755
303,321
#4 AMD EPYC 9745
280,477

passmark_find_prime_numbersSource

Find prime numbers tests AMD Ryzen Threadripper PRO 3955WX 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.

passmark_find_prime_numbers #146 of 528
198
8%
Max: 2,422
Compare with other CPUs

passmark_floating_point_mathSource

Floating point math measures how AMD Ryzen Threadripper PRO 3955WX handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations.

passmark_floating_point_math #170 of 528
77,979
7%
Max: 1,141,430
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
1,141,430
#2 AMD EPYC 9845
978,377
#3 AMD EPYC 9755
922,900
#4 AMD EPYC 9745
761,219
#5 AMD EPYC 9655P
710,260

passmark_integer_mathSource

Integer math tests how fast AMD Ryzen Threadripper PRO 3955WX processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance. Encryption and data processing heavily rely on integer operations. Higher scores benefit applications that work primarily with non-decimal numbers.

passmark_integer_math #131 of 528
132,456
7%
Max: 1,806,439
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
1,806,439
#2 AMD EPYC 9845
1,687,531
#3 AMD EPYC 9755
1,549,946
#4 AMD EPYC 9745
1,224,315

passmark_multithreadSource

PassMark multi-thread tests AMD Ryzen Threadripper PRO 3955WX across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score. The combined result reflects general-purpose parallel computing capability. Results can be compared against millions of submissions in the PassMark database.

passmark_multithread #126 of 528
40,155
23%
Max: 174,825
Compare with other CPUs

passmark_physicsSource

Physics tests how AMD Ryzen Threadripper PRO 3955WX handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements.

passmark_physics #133 of 528
2,460
9%
Max: 27,806
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9755
27,806
#2 AMD EPYC 9655P
26,810
#3 AMD EPYC 9655
25,958
#4 AMD EPYC 9684X
24,686
#5 AMD EPYC 9575F
22,021

passmark_random_string_sortingSource

Random string sorting measures how fast AMD Ryzen Threadripper PRO 3955WX can organize text data. This is important for database operations, search indexing, and data processing applications.

passmark_random_string_sorting #109 of 528
63,758
10%
Max: 609,901
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
609,901
#2 AMD EPYC 9755
571,185
#3 AMD EPYC 9845
538,060
#4 AMD EPYC 9745
468,975
#5 AMD EPYC 9655P
455,310

passmark_single_threadSource

PassMark single-thread measures per-core performance of AMD Ryzen Threadripper PRO 3955WX across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use.

passmark_single_thread #423 of 528
2,679
53%
Max: 5,097
Compare with other CPUs

passmark_singlethreadSource

PassMark single-thread measures per-core performance of AMD Ryzen Threadripper PRO 3955WX 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_singlethread #423 of 528
2,679
53%
Max: 5,097
Compare with other CPUs

About AMD Ryzen Threadripper PRO 3955WX

The **AMD Ryzen Threadripper PRO 3955WX CPU** is a beast built on AMD’s Zen 2 (Castle Peak) architecture, leveraging a 7nm fabrication process to pack 16 cores and 32 threads into a single chip. Unlike consumer-grade Ryzen CPUs, this monster is tailored for prosumer workstations, with PCIe 4.0 support and a massive 64MB of L3 cache that ensures rapid data access for multitasking or compute-heavy workflows. The SMT (Simultaneous Multi-Threading) design allows each core to handle two threads simultaneously, making it ideal for applications that scale with parallelism. This architecture’s chiplet design also helps balance performance and thermal efficiency, though it’s clear this isn’t a chip for the faint of heart when it comes to power draw or cooling needs. Boosting from a base clock of 3.9 GHz to 4.3 GHz in turbo mode, the **AMD Threadripper PRO 3955WX** doesn’t just check boxes it redefines expectations for workstation-grade performance. While the turbo frequency is lower than some consumer-oriented Threadrippers, the sustained performance across 32 threads means it can chew through rendering tasks, simulations, or data analysis with surgical precision. Benchmarks like PassMark’s integer math (132K points) and data compression (601K points) highlight its ability to juggle complex calculations without breaking a sweat. For users who prioritize raw throughput over single-threaded speed, this CPU’s frequency profile is a calculated gamble that pays off in multi-threaded workloads. Thermal management is no joke with the **Threadripper PRO 3955WX CPU** its 280W TDP demands a top-tier cooling solution, preferably liquid, to survive sustained workloads. AMD’s WRX8 socket design ensures robust power delivery, but users should prepare for a power-hungry system that might require a 1000W+ PSU. The lack of a stock cooler isn’t a oversight; it’s a reality check that this chip isn’t for the casual builder. Despite the heat, the Zen 2 architecture’s efficiency shines through, balancing high performance with reasonable thermal throttling under load. If you’re running 4K video editing or AI training sessions for hours, this CPU will keep up but you’ll need to invest in cooling that matches its intensity. Cache hierarchy in the **AMD Ryzen Threadripper PRO 3955WX CPU** is a masterclass in latency reduction. Each core gets 512KB of L2 cache, and the 64MB of shared L3 cache ensures data is within reach for all threads, minimizing bottlenecks during multi-tasking. Benchmarks like random string sorting (63K points) and floating-point math (77K points) reveal how the cache architecture accelerates tasks that require frequent data shuffling. This makes it a dream for developers, scientists, or anyone working with large datasets where latency is the enemy. The 3955WX isn’t just a CPU; it’s a precision tool for workloads that demand both speed and scale.

The Intel Equivalent of Ryzen Threadripper PRO 3955WX

Looking for a similar processor from Intel? The Intel Core i9-10850K offers comparable performance and features in the Intel lineup.

Intel Core i9-10850K

Intel • 10 Cores

View Specs Compare

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