Ryzen Threadripper PRO 3955WX

Details and Benchmarks for AMD Ryzen Threadripper PRO 3955WX

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Ryzen Threadripper PRO 3955WX based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

6,213 Rank: 177
Rank Name Score Visual
173 Xeon E-2276G 6,227
+0.2%
174 Ryzen 7 5800XT 6,224
+0.2%
175 Core i9-7920X 6,221
+0.1%
176 Xeon Gold 5416S 6,216
+0%
177 Ryzen Threadripper PRO 3955WX 6,213
178 Xeon W-1350 6,210
+-0%
179 EPYC 7551P 6,208
-0.1%
180 Core i7-8086K 6,204
-0.1%
181 Ryzen 5 7540U 6,204
-0.1%
182 Xeon W-1370 6,201
-0.2%

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Multicore Score

Multicore performance score for Ryzen Threadripper PRO 3955WX based on multi-threaded benchmark results.

6,682 Rank: 135
Rank Name Score Visual
131 Ryzen 7 7700 6,704
+0.3%
132 Core i9-10940X 6,694
+0.2%
133 Xeon w5-2455X 6,694
+0.2%
134 EPYC 7351 6,684
+0%
135 Ryzen Threadripper PRO 3955WX 6,682
136 Ryzen 7 7800X3D 6,665
-0.3%
137 Xeon W-3245 6,648
-0.5%
138 Ryzen AI 9 HX 370 6,646
-0.5%
139 EPYC 7452 6,644
-0.6%
140 Xeon Gold 6346 6,634
-0.7%

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Singlecore Score

Single-core performance score for Ryzen Threadripper PRO 3955WX based on single-threaded benchmark results.

5,900 Rank: 307
Rank Name Score Visual
303 Core i7-10710U 5,909
+0.2%
304 Core i7-6785R 5,908
+0.1%
305 Core i7-9700 5,906
+0.1%
306 Ryzen Threadripper 1920X 5,900
+0%
307 Ryzen Threadripper PRO 3955WX 5,900
308 Core i5-10400H 5,899
+-0%
309 AMD Ryzen 5 1600X 5,898
+-0%
310 Ryzen Threadripper PRO 3945WX 5,898
+-0%
311 Core i3-10320 5,897
-0.1%
312 Xeon E3-1245 v6 5,895
-0.1%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Ryzen Threadripper PRO 3955WX based on integer math, floating point math, and prime number computation benchmarks.

5,875 Rank: 116
Rank Name Score Visual
112 Xeon Platinum 8270 5,921
+0.8%
113 Xeon Platinum 8180M 5,905
+0.5%
114 Ryzen 9 PRO 5945 5,901
+0.4%
115 EPYC 7302P 5,880
+0.1%
116 Ryzen Threadripper PRO 3955WX 5,875
117 EPYC 7601 5,874
+-0%
118 Xeon w5-2455X 5,861
-0.2%
119 Ryzen 9 5900 5,853
-0.4%
120 Xeon Gold 6346 5,850
-0.4%
121 Xeon W-3265M 5,846
-0.5%

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Data Processing

Aggregated score for Ryzen Threadripper PRO 3955WX based on data encryption, data compression, and string sorting benchmarks.

6,354 Rank: 82
Rank Name Score Visual
78 Core i9-13900F 6,403
+0.8%
79 Xeon w7-3445 6,395
+0.6%
80 Xeon Gold 5418Y 6,366
+0.2%
81 Ryzen 9 7900X3D 6,366
+0.2%
82 Ryzen Threadripper PRO 3955WX 6,354
83 EPYC 7F52 6,350
-0.1%
84 Ryzen 9 5900XT 6,339
-0.2%
85 Ryzen 9 3950X 6,334
-0.3%
86 Ryzen 9 PRO 7945 6,331
-0.4%
87 Ryzen 9 7900 6,309
-0.7%

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Physics & Compute

Aggregated score for Ryzen Threadripper PRO 3955WX based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

6,025 Rank: 98
Rank Name Score Visual
94 EPYC 7302 6,063
+0.6%
95 EPYC 7302P 6,058
+0.5%
96 Ryzen 9 7845HX 6,043
+0.3%
97 Core i9-13900F 6,033
+0.1%
98 Ryzen Threadripper PRO 3955WX 6,025
99 Xeon Platinum 8168 6,019
-0.1%
100 EPYC 7551P 6,018
-0.1%
101 Xeon Platinum 8270 6,012
-0.2%
102 Xeon Gold 6254 6,012
-0.2%
103 Core i9-14900F 6,012
-0.2%

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Ryzen Threadripper PRO 3955WX Details

With a TDP of 280 watts, the AMD Ryzen Threadripper PRO 3955WX stands out as one of the most power-hungry processors in the desktop segment, reflecting its high-performance design. Launched in July 2020, this processor belongs to the Ryzen Threadripper PRO lineup and is built on the Zen 2 (Castle Peak) microarchitecture, manufactured by TSMC using a 7 nm process node. It is designed for professional workstations and demanding applications such as 3D rendering, video editing, and scientific computing, where extreme multi-threaded performance is required. The chip features 16 cores and 32 threads, enabled by Simultaneous Multithreading (SMT), and operates at a base frequency of 3.9 GHz with a boost frequency reaching up to 4.3 GHz. It integrates 64 MB of L3 cache, which significantly enhances data throughput for large workloads.

The Ryzen Threadripper PRO 3955WX is socketed into the sWRX8 interface, requiring a compatible motherboard and cooling solution to manage its thermal output. It supports eight-channel DDR4 memory, with a rated speed of 3200 MT/s and a maximum bandwidth of 204.8 GB/s. ECC memory support is included, a critical feature for enterprise and mission-critical environments where data integrity is paramount. The processor also supports PCIe 4.0 and offers 128 lanes directly from the CPU, enabling high-speed connectivity to storage and expansion devices. While it lacks integrated graphics, it relies on discrete GPUs for visual output, making it ideal for users who already have a robust GPU setup.

In terms of features, the processor supports a wide range of instruction sets, including AVX2, SSE4.1, SSE4.2, AES-NI, and AMD-V virtualization technology. These capabilities ensure efficient performance in computational, encryption, and virtualization tasks. The chip’s transistor count of 7.6 billion underscores its complexity and scale, built on a 74 mm² die with a separate 416 mm² I/O die. Despite being released in 2020, the 3955WX remains competitive in professional workloads, though it is now considered an older generation.

Benchmark results reveal that the Ryzen Threadripper PRO 3955WX achieves an overall score of 6213, placing it at #177 among 2060 processors. It scores 5900 in single-core performance (#306) and 6682 in multicore performance (#135). In the top 50 overall list, it trails behind more modern processors like the Ryzen Threadripper PRO 9995WX and Core Ultra 9 285K, but remains ahead of many consumer and workstation CPUs. Its multicore strength is particularly notable, with rankings just behind high-end Xeon and Ryzen Threadripper PRO 5995WX models. However, its single-core performance lags behind newer flagship processors, indicating that while it excels in multi-threaded tasks, it is less competitive in single-threaded applications.

As of March 2026, the Ryzen Threadripper PRO 3955WX is best suited for professional workstations requiring high core counts and memory bandwidth, such as CAD, simulation, and content creation environments. While it is no longer a top-tier option in the latest generation of processors, its strong multicore performance and ECC support make it a reliable choice for legacy professional systems. For users seeking modern efficiency and single-core performance, newer alternatives are more appropriate, but the 3955WX still holds value in niche, high-end workloads where its specifications are still relevant.
Frequently Compared

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AMD Ryzen Threadripper 1950X 24 views

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AMD Ryzen Threadripper 1920X 22 views

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AMD Ryzen Threadripper PRO 3955WX

Main Specifications

Designer: AMD
Name: Ryzen Threadripper PRO 3955WX
Cores: 16
Threads: 32
Base Frequency: 3900 MHz
Clock Multiplier: 39x (locked)
Core Name: Castle Peak
Socket: Socket WRX8
Package: sWRX8
Target Segment: Desktop
TDP: 280 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.488 MiB

Memory Specifications

Supported Memory Type: DDR4

Physical Specifications

Process: 7 nm
Die Area: 74 mm²
Manufacturer: TSMC

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 BMI1 BMI2 FMA3 AES F16C SMEP SSE4a SHA AMD-V SMT XFR 2
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