Unleash unparalleled workstation performance with the AMD Ryzen™ Threadripper™ PRO 9955WX – a cutting-edge 16-core, 32-thread processor engineered for professionals who demand uncompromising power, stability, and flexibility. Built on AMD’s groundbreaking “Zen 5” architecture and manufactured using a 4nm FinFET process, this CPU sets a new standard for high-end desktops and professional-grade workstations. Whether you’re a 3D artist, architect, engineer, or AI developer, the 9955WX delivers the precision and scalability needed to tackle complex rendering, simulation, or local AI inference workloads with ease.
Clocked at a base frequency of 4.5GHz and capable of boosting up to 5.4GHz, this processor provides exceptional performance for both multi-threaded and lightly threaded applications. With a massive 64MB of L3 cache, 16MB of L2 cache, and 1280KB of L1 cache, it ensures rapid data access for high-speed computation and seamless multitasking. Equipped with support for PCIe 5.0, the Threadripper PRO 9955WX enables ultra-fast communication with GPUs, storage, and other peripherals – making it ideal for data-intensive and GPU-accelerated workloads in demanding professional environments.
Designed for the sTR5 socket, this processor is compatible with WRX90, TRX50, and PRO 695 chipsets, offering a scalable platform for creative professionals and enterprises alike. Enterprise-class features such as AMD PRO Technologies ensure enhanced manageability, robust security, and long-term platform stability, including 18 months of planned software stability and 24 months of planned availability. Additionally, AMD EXPO™ Technology enhances memory tuning and performance, making it easier for professionals to extract every ounce of power from their build.
The AMD Ryzen Threadripper PRO 9955WX is more than just a processor—it’s a productivity catalyst. Whether you’re running multiple virtual machines, processing real-time 3D rendering, or developing generative AI models, this CPU helps you accomplish more in less time. With support for major operating systems including Windows 11 64-bit, Ubuntu, and RHEL, this processor is ready for any deployment scenario. Please note: a thermal solution is not included, giving system builders the flexibility to pair it with a cooling solution tailored to their specific thermal and performance needs.
FEATURES:
- Up to 5.4GHz
- 16 Cores / 32 Threads
- sTR5 Socket
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AMD EXPO™ Technology
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AMD PRO technologies
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AMD Ryzen™ Technologies
- Designed for enthusiast-level workstations and high-end desktops
- Ideal for artists, creators, architects, AI developers, and engineers
SPECIFICATIONS:
- CPU Cores: 16
- Threads: 32
- Base Clock: 4.5GHz
- Max Boost Clock: Up to 5.4GHz
- Total L1 Cache: 1280 KB
- Total L2 Cache: 16MB
- Total L3 Cache: 64MB
- Unlocked: Yes
- CMOS: TSMC 4nm FinFET
- CPU Socket: sTR5
- Supported Chipsets: WRX90 , TRX50 , Pro 695
- PCI Express® Version: PCIe 5.0
- Default TDP: 350W
- OS Support
- Windows 11 – 64-Bit Edition
- Windows 10 – 64-Bit Edition
- RHEL x86 64-Bit
- Ubuntu x86 64-Bit
- *Operating System (OS) support will vary by manufacturer.
- Supported Technologies
- AMD EXPO™ Technology
- AMD PRO technologies
- AMD Ryzen™ Technologies
- Thermal Solution: Not included
WHAT’S IN THE BOX:
- AMD Ryzen Threadripper Pro 9955WX 16-Core 4.5GHz CPU x1
Please note: A discreet graphics card is required to use this CPU as it does not come with dedicated graphics on board.
Workstation Excellence with Zen 5 Architecture
The AMD Ryzen Threadripper PRO 9955WX (SKU: 100-100000725WOF) represents the cutting edge of professional workstation technology. Utilizing the advanced 4nm Zen 5 architecture, this 16-core, 32-thread processor is optimized for the most demanding technical tasks. With a blistering 5.4GHz boost clock and a total of 80MB cache, the 9955WX provides the responsive performance needed for real-time 3D design, complex software compilation, and high-fidelity video production.
Unmatched I/O and Expandability
Engineered for the sTR5 socket, the 9955WX offers the industry’s most expansive connectivity for a professional desktop. When paired with the WRX90 chipset, it unlocks a massive pipeline for hardware acceleration:
- 128 Usable PCIe 5.0 Lanes: Run multiple flagship GPUs and Gen 5 NVMe arrays at full bandwidth without compromise.
- 8-Channel DDR5 Memory: Octa-channel RDIMM support provides massive memory bandwidth for data-intensive simulations.
- ECC Memory Support: Native Error Correction Code support ensures 24/7 system stability and data integrity for mission-critical renders.
Technical Specifications
| Feature | Specification |
|---|---|
| Model Number | 100-100000725WOF |
| Cores / Threads | 16 Cores / 32 Threads |
| Max Boost Clock | Up to 5.4 GHz |
| Base Clock | 4.5 GHz |
| Total Cache (L2+L3) | 80 MB (64MB L3 + 16MB L2) |
| PCIe 5.0 Lanes | 128 Usable (148 Total) |
| Memory Architecture | 8-Channel DDR5 ECC RDIMM |
| Default TDP | 350W |
AMD PRO Technologies for Enterprise Security
- AMD Memory Guard: Protects your sensitive data with real-time, full system memory encryption against physical theft.
- AMD PRO Manageability: Streamlined remote management and deployment tools that reduce the complexity of workstation fleet maintenance.
- AMD Secure Processor: Dedicated on-chip hardware for a silicon-level Root of Trust to secure firmware and the boot process.
- Software Stability: Guaranteed 18 months of planned software stability and 24 months of planned availability.
Premium Professional Build
The 9955WX features a Nickel-Plated Copper IHS with a Titanium Grey finish, designed for maximum thermal transfer to high-end liquid cooling systems. The Forest Green substrate and Yellow Gold plated sTR5 contacts ensure long-term reliability and signal purity under the heavy electrical loads of professional workstation use.
Note: This is a “Without Fan” (WOF) SKU. A liquid cooling solution (minimum 360mm) or a certified sTR5 air cooler is required for operation.
