AMD Ryzen Threadripper 3990X vs AMD Ryzen Threadripper PRO 3955WX

Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the AMD Ryzen Threadripper 3990X is the better pick — it scores 86/100 to the AMD Ryzen Threadripper PRO 3955WX's 52, leading on Core Specifications and Benchmark. Choose the AMD Ryzen Threadripper PRO 3955WX instead if you want to spend less.

Verdict

Our overall take, at a glance

AMD Ryzen Threadripper 3990X leads overall

AMD Ryzen Threadripper 3990X

AMD Ryzen Threadripper PRO 3955WX

Why it stands out

Core Specifications L2 Cache: 32 MB (300% more)
Core Specifications L3 Cache: 256 MB (300% more)
Benchmark PassMark CPU Mark: 79,592 (100% more)

Winner by category for AMD Ryzen Threadripper 3990X vs AMD Ryzen Threadripper PRO 3955WX
Category	AMD Ryzen Threadripper 3990X	AMD Ryzen Threadripper PRO 3955WX	Winner
Core Specifications	73	34	AMD Ryzen Threadripper 3990X
Integrated Graphics	0	0	Tie
Benchmark	93	61	AMD Ryzen Threadripper 3990X

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.

AMD Ryzen Threadripper 3990X

The AMD Ryzen Threadripper 3990X is a high-core count, x86-64 microprocessor designed for demanding professional computing tasks. It belongs to AMD's line of robust desktop processors, making it suitable for users needing extensive computational power. Its architecture focuses on scalability and performance over standard consumer usage.

Best for Workstation PCsBest for Video EditingBest for Scientific Simulation

Pros

Designed as a high-end processor, suggesting superior multi-threaded capability (general knowledge).
It is classified within the Threadripper segment, known for its suitability in complex professional workstations.
The overall line of processors includes various generation identifiers through history, indicating continuous development and specialization into compute tasks.

Cons

Being a high-power workstation chip often requires more complex cooling solutions than standard CPUs (general knowledge).
Its specific focus on professional work and core count places it at the higher end of the market spectrum.

AMD Ryzen Threadripper PRO 3955WX

The AMD Ryzen Threadripper PRO 3955WX is a professional workstation processor built on a 7nm manufacturing process, featuring 16 cores and 32 threads. Designed for the sWRX8 platform, it operates at a base clock frequency of 3.9 GHz with a max boost frequency of 4.3 GHz. It is targeted at workstation users requiring enterprise-grade compute power and high multi-threaded performance.

Best for Heavy multi-threaded workstation applications on the sWRX8 platformBest for Professional compute tasks requiring high base clock speeds across 16 cores

Pros

High core density with 16 cores and 32 threads for intensive parallel workloads
Solid 3.9 GHz base frequency alongside a 4.3 GHz maximum boost frequency
Generous 64 MB L3 cache to support data-heavy processing

Cons

Substantial power consumption with a 280 W rating
Lacks integrated graphics, requiring a dedicated graphics card
Locked multiplier prevents manual processor overclocking

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

AMD Ryzen Threadripper 3990X

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AMD Ryzen Threadripper PRO 3955WX

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Performance

Higher benchmark score = faster

AMD Ryzen Threadripper 3990X79,592

AMD Ryzen Threadripper PRO 3955WX39,788

See the raw benchmark values →

Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.

Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature	AMD Ryzen Threadripper 3990X	AMD Ryzen Threadripper PRO 3955WX
Cores	64	16
Threads	128	32
Base Frequency	2.9 GHz	3.9 GHz34% more
Base Power Consumption	280 W	280 W
Maximum Frequency	4.3 GHz	4.3 GHz
Maximum Power Consumption	N/A	N/A
L1 Cache	N/A	1,024 KB
L2 Cache	32 MB300% more	8 MB
L3 Cache	256 MB300% more	64 MB
Lithography Process	7 nm	7 nm
Is unlocked	Yes	No

Integrated Graphics

Feature	AMD Ryzen Threadripper 3990X	AMD Ryzen Threadripper PRO 3955WX
Model	N/A	N/A

Benchmark

Feature	AMD Ryzen Threadripper 3990X	AMD Ryzen Threadripper PRO 3955WX
PassMark CPU Mark	79,592100% more	39,788

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about AMD Ryzen Threadripper 3990X vs AMD Ryzen Threadripper PRO 3955WX comparison

Based on our overall comparison score, AMD Ryzen Threadripper 3990X rates higher at 92/100 versus 71/100 for AMD Ryzen Threadripper PRO 3955WX — a 21-point lead. AMD Ryzen Threadripper 3990X is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.

AMD Ryzen Threadripper 3990X and AMD Ryzen Threadripper PRO 3955WX are compared side by side above across every spec in the cpus category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 92/100 for AMD Ryzen Threadripper 3990X and 71/100 for AMD Ryzen Threadripper PRO 3955WX.

If you want the higher-rated cpus option overall, AMD Ryzen Threadripper 3990X (92/100) edges out AMD Ryzen Threadripper PRO 3955WX (71/100). But if AMD Ryzen Threadripper PRO 3955WX is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.