The AMD Ryzen Threadripper PRO 9975WX is a workstation-class processor for the sTR5 platform, with 32 cores and 64 threads. It is specified with a 4.0GHz base clock and boost clocks up to 5.4GHz, along with 32MB L2 cache and 128MB L3 cache. Its 350W default TDP means the full workstation needs suitable motherboard power delivery, cooling and case airflow.
Key Technical Highlights
- Compute capacity: 32 CPU cores and 64 threads for workloads that benefit from parallel processing.
- Clock speeds: 4.0GHz base and up to 5.4GHz maximum boost.
- Cache: 32MB L2 cache and 128MB L3 cache.
- Memory platform: 8-channel DDR5 Registered DIMM memory, with support up to 6400MT/s as specified for the platform.
- Expansion: PCIe 5.0; up to 128 PCIe 5.0 lanes.
- Power and cooling: 350W default TDP; the thermal solution is not included.
- Graphics: A discrete graphics card is required.
Who Should Consider It?
This processor is intended for high-end workstation builds where software can use its core count, memory bandwidth and PCIe connectivity. Examples include CPU rendering, engineering simulation, complex compilation and other heavily threaded professional workloads. Actual performance depends on the application and system configuration.
For everyday office use or gaming-focused systems, a workstation platform may be unnecessary. Compare the requirements of your software and the total platform cost before choosing this CPU class.
Technical Specifications
| Model | AMD Ryzen Threadripper PRO 9975WX |
|---|---|
| Package type | Tray |
| Architecture | Zen 5 (Shimada Peak) |
| Socket | sTR5 |
| CPU cores / threads | 32 / 64 |
| Base clock | 4.0GHz |
| Maximum boost clock | Up to 5.4GHz |
| L2 cache | 32MB |
| L3 cache | 128MB |
| Memory support | DDR5 RDIMM, 8-channel, up to 6400MT/s |
| PCI Express | PCIe 5.0 |
| Maximum PCIe 5.0 lanes | 128 |
| Default TDP | 350W |
| Thermal solution | Not included |
| Integrated graphics | Not included; discrete graphics required |
| Warranty | 3 Years |
Buying Recommendation
Choose this processor when its core count, memory platform and PCIe lane capacity align with your workstation workload. Confirm the motherboard support list, memory compatibility, cooling solution and package type before purchase.
Frequently Asked Questions
Which socket does it use?
It uses the sTR5 socket. Confirm motherboard support for the exact processor model.
Which memory type is required?
The platform uses DDR5 Registered DIMM (RDIMM) memory. Follow the motherboard manual for supported modules and slot population.
Is a cooler included?
The listed thermal solution is not included. Select a compatible cooling solution for the workstation platform and its power requirements.






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