AMD Ryzen Threadripper Pro 9995WX: Pushing the Limits of HEDT Overclocking
The AMD Ryzen Threadripper Pro 9995WX stands as a powerhouse in the high-end desktop (HEDT) processor market, featuring an impressive 96 cores and 192 threads. With a standard thermal design power (TDP) of 350 W, this CPU is engineered for demanding professional workloads. However, recent overclocking experiments have demonstrated that the Threadripper Pro 9995WX is capable of far more, provided it receives advanced cooling solutions.
Innovative Cooling for Extreme Overclocking
Overclocking the Ryzen Threadripper Pro 9995WX to its limits can push power consumption to an extraordinary 1,300 W. To manage this level of heat output, a custom integrated heat spreader (IHS) that doubles as a direct-die waterblock is essential. In a recent project, hardware enthusiast Geekerwan engineered a unique fin structure inside the IHS, transforming it into an efficient direct-die waterblock. This innovation enabled the CPU to reach a remarkable 5.325 GHz, drawing up to 1,340 W under load, with the entire system consuming approximately 1,700 W.
Geekerwan collaborated with ASUS China regional manager Tony Yu to explore various IHS designs before modifying the IHS of the $12,000 processor. Initial attempts used a straight fin structure, a common feature in commercial waterblocks. However, computer simulations revealed that a curved, wavy S-shaped fin structure provided superior thermal performance. This design allowed coolant to travel a longer path with minimal resistance, resulting in 20% better cooling efficiency compared to the straight fin approach.
Precision Engineering and Impressive Results
The IHS of the Ryzen Threadripper Pro 9995WX measures 4.1 mm in thickness, which allowed for approximately 2.0 mm of fin depth while maintaining 2.1 mm for structural integrity to withstand significant water pressure. After a meticulous 19-hour CNC milling process, the custom IHS was completed. The result was a CPU that maintained temperatures between 30°C and 50°C under Cinebench 2026 load—an outstanding achievement for such a high-powered processor.
The system’s performance was further enhanced by an industrial-grade chiller, two Bosch automotive water pumps, and a massive 37-gallon water tank. This advanced cooling setup enabled the system to secure 7th place in Cinebench R23, trailing only behind an LN2-cooled AMD Ryzen Threadripper Pro 7995WX running at 6.2 GHz. The combination of innovative cooling design and robust hardware demonstrates the potential of the Ryzen Threadripper Pro 9995WX when paired with custom engineering solutions.
