Voltage. Thrill. Performance: Overclocking AMD’s Ryzen Threadripper PRO 9000WX series with CENS and HWBOT

Today I would like to give the stage to a special guest: CENS, Clemens Nüssler by name, is one of the most successful overclockers in the world and moves confidently at the very edge of the enthusiast scene. In today’s article, he provides an exclusive insight into his first experiences with AMD’s new Ryzen Threadripper PRO 9000WX models, which he not only pushed to the limits of their thermal capacity, but in some cases even beyond. With such extreme overclocking, there is often only the blink of an eye between total triumph and complete hardware loss, and it is precisely this fine line that CENS is taking you along today.

CENS is one of the leading international overclockers and comes from Germany. As a two-time winner of the G.SKILL OC World Cup in 2024 and 2025, he has earned himself a permanent place among the scene’s elite. Originally active for Team EVGA, he is now a core member of the ASUS ROG Overclocking team. His reputation is based on a whole series of spectacular records, including the world’s first overclocking of an RTX 4090 beyond the 4 GHz mark as well as numerous best performances on Intel and AMD platforms. Under the CENSXOC banner, he stands for years of experience in LN2 overclocking, uncompromising enthusiasm for technology and an unwavering pursuit of maximum voltage, speed and control.

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When sometimes more really is more: Threadripper PRO 9995WX

When AMD officially unveiled the new Ryzen Threadripper PRO 9000 WX series with Zen 5 architecture, I immediately realized that this was no ordinary clock speed increase. These processors are not for the average gamer or typical enthusiast, but are specifically designed for demanding workloads, extreme bandwidth and, as it turned out, maximum overclocking. Thanks to a collaboration with ASUS ROG and G.SKILL, I was given exclusive access to these workstation-ready behemoths immediately after Computex 2025. In a week-long secret overclocking session at ASUS headquarters in Taipei, I tested the new platform under maximum load. The resulting scenario was an intensive and technically demanding benchmark project in which silicon, cooling systems and hardware technology were all pushed to their limits.

In addition to the personal experience, the publicly available technical documentation is remarkable: AMD’s Threadripper PRO 9000 WX series was first presented at Computex 2025 on May 20, 2025 and has been available since July 23, 2025. The Zen 5 generation processors offer up to 96 CPU cores with 192 threads, a boost clock of up to 5.4 GHz and support eight-channel DDR5-6400 memory subsystem and up to 128 PCIe 5.0 lanes, a platform optimized for local AI development, heavy rendering or simulation tasks. AMD repeatedly emphasizes the top model Threadripper PRO 9995WX with 96 cores, which achieves an IPC increase of 16% on average compared to its predecessor, and even up to 25% in SPEC workstation benchmarks. Compared to the previous PRO generation, it achieves up to 26% better performance in real-world applications, up to 2.4x higher performance in rendering workloads such as Chaos V-Ray and up to 78% performance gains in complex creative applications such as After Effects.

The combination of ASUS Pro WS WRX90E-SAGE SE motherboard and G.SKILL DDR5 memory has already led to at least 46 overclocking world records. Professional overclockers such as OGS, SEBY and myself have been able to set new records with this platform in benchmarks such as Cinebench, 7-Zip, Geekbench and x265. The motherboard offers special features such as LN2 mode, extensive voltage measurement points and a VRM design that enables stable extreme overclocking values. This introduction marks the beginning of a report that not only describes my personal experiences in the ASUS lab, but also provides a well-founded assessment of the technical performance of the new Threadripper PRO 9000 WX series in the context of current benchmarks and industrial applications.

What was tested and how and with what?

But before even thinking about overclocking, you have to realize what you are actually dealing with here. The Threadripper PRO 9000WX series is not a platform for a quick sense of achievement or simple plug-and-play experiments. Anyone who gets involved with these processors is making a conscious decision in every respect. Several engineering samples were tested, including the flagship Threadripper PRO 9995WX with 96 cores and 192 threads, as well as the 9985WX and 9965WX models. All of them ran on the ASUS Pro WS WRX90E-SAGE SE, a motherboard that stands out not only for its enormous physical size, but also for its complexity. However, if you take the trouble to delve deeper into the BIOS settings, you will discover an amazingly flexible platform. However, you should allow several hours to get anywhere near an optimal setup and you don’t even need to start without a powerful power supply.

A G.Skill Zeta R5 DDR5 RDIMM kit with a total of 192 GB over eight channels was used. The performance was not only stable, but also left considerable scope for overclocking. However, the fact that these are registered DIMMs and not classic UDIMMs makes fine-tuning a real challenge, which is not everyone’s cup of tea, but is clearly worthwhile if successful. A Seasonic Prime PX-2200 was used for the power supply, not out of principle, but out of sheer necessity. When overclocked, the platform can easily draw well over 1000 watts under full load when all cores are active.

Heat dissipation was another key element. While many would resort to liquid metal under such conditions, Thermal Grizzly’s Duronaut was deliberately chosen here. Especially with large heatspreaders such as those of the Threadripper models and in sessions with low ambient temperatures or even preparation for LN2 cooling, the paste proved itself through its permanent contact stability. No pump-outs, no sudden temperature jumps, no hair-thin cracks in the layer that ruin the session in the middle of a run.

What 96 cores can really do – when you unleash them

The benchmarks with the three CPUs tested resulted in a total of 42 results submitted to HWBOT, right at the official launch of the platform. Six of these were recognized as world records and are now assigned to the ASUS ROG team. This is a considerable exclamation mark for a platform that hardly anyone has officially been able to use productively.

Particularly impressive was Cinebench R23, where the Threadripper PRO 9995WX was pushed to almost 6 GHz on one of its best CCDs, a clock speed increase of around 138 percent compared to the all-core standard. The other CCDs ran at a clock rate around 100 MHz below this. The result was multi-core scores that were simply beyond anything previously seen in all Cinebench versions. The combination of high heat density, complex voltage scaling and the thermal properties of the die requires not only technology, but also sensitivity.

Excellent scaling was also observed in the various versions of Geekbench – specifically 3, 4, 5 and 6. Older versions in particular, which still have a high weighting on HWBOT, benefited from the brute raw performance. Remarkable: Some world records were not achieved with the 96-core, but with the slightly smaller 9985WX with 64 cores, which indicates a high efficiency potential of individual CCDs.

In benchmarks such as 7-Zip and Y-Cruncher, which are designed for the broadest possible parallelization, the comprehensive memory tuning paid off in particular. The platform was brought to over 8000 MT/s in octa-channel operation – a value that is not only technically impressive, but also shows how well AMD has coordinated the memory bandwidth and the internal cache architecture in the Zen 5 generation. Even in applications that traditionally work with limited memory, the platform proved to be extremely robust.

These results underline the fact that the Threadripper PRO 9000WX not only represents an extension of existing workstation platforms, but also defines a completely new performance class in its overclocked form, at least for those who are prepared to go to the last degree Celsius and volt and, in their private lives, also have the necessary small change to do so.

Pros and cons of overclocking

The overclocking experience with the Threadripper PRO 9000WX platform revealed impressive potential, but also some technical hurdles that can only be overcome with experience, patience and a suitable setup. What stands out positively is the scalability of the CPUs. Each tested model reacted individually, but nevertheless in a certain way predictably to voltage corrections. Once the lower threshold for stable all-core frequencies has been found, the clock rate scales almost linearly with the voltage – provided the cooling can keep up. However, this is also where the downside becomes apparent: the chips are extremely sensitive to voltage overshoots, which can quickly lead to instability or even damage if the approach is too aggressive.

An unexpected ray of hope was the behavior of the new RDIMM kit from G.SKILL with 24 GB modules. Despite the fundamentally more complex signal structure on the WRX90 platform, careful tuning of secondary and tertiary timings resulted in remarkable latency optimization, which was directly measurable in many memory-heavy benchmarks.

The BIOS interface of the ASUS WRX90 mainboard impressed with its wealth of functions. Despite its focus on professional workstation applications, it offers numerous options that are otherwise only found in the enthusiast sector. These include full LN2 compatibility, retry and safe boot functions as well as very fine-grained control of memory timings. This combination makes the board a real exception in its segment.

Nevertheless, there are some weak points that you should be aware of. The sheer surface area of the heatspreader makes the application of thermal paste challenging. Only those who use the right material and install the cooler with the correct torque setting can avoid hotspots and instability. Otherwise, there is often a risk of strange crashes in the middle of the benchmark or errors that are difficult to reproduce during operation.

During the sub-zero tests, known limitations of the Ryzen architecture occurred: the so-called cold boot bug and the classic cold bug. In the former, the system refuses to train or boot properly at certain temperatures, usually between -80 and -100 °C. With the classic cold bug, the system freezes after booting at further temperature drops below around -135 to -100 °C or triggers blue screens. It becomes particularly tricky if you also set the fabric clock (FCLK) and the memory timings aggressively – both of which significantly reduce the thermal tolerance. You are therefore faced with a constant balancing act: benchmarks that rely on memory bandwidth require aggressive memory tuning. On the other hand, benchmarks that require raw computing power benefit from the lowest possible temperatures, where the focus is entirely on the core frequencies.

Another technical obstacle arises from the platform structure itself: Due to the eight-channel operation and the workstation-oriented architecture, boot and training processes take an unusually long time. If you frequently change individual timings, you will definitely have time for a cup of coffee between exiting the BIOS and displaying the desktop. A tried and tested trick: Test with just one memory module at first. Boot times are noticeably shorter and stability limits can be tested more quickly. Once these have been found, the identical setting can be applied to the full configuration. However, you then often have to reckon with around 200 MHz less memory clock – and start fine-tuning again from there.

Conclusion: Threadripper has long been more than just a workstation CPU

With the Ryzen Threadripper PRO 9000WX series, AMD has created a platform that not only serves professional users and studios, but also opens the doors to the world of extreme overclocking. These processors are uncompromisingly powerful and, with the right equipment and the necessary experience, offer an impressive playground for all those who want to go beyond the ordinary. If you have the necessary sensitivity, patience and technical understanding, you will not only find a reliable platform for top productive performance, but also a real tool for chasing world records. These CPUs are not everyday solutions, but specialized machines that, when handled correctly, can unleash their full potential and set new benchmarks in multi-threaded benchmarks.

For those looking for new challenges and willing to go the extra mile in clock speed, timing and thermal stability, this platform becomes more than just a tool: it becomes the center of a new overclocking era.

Huge thanks to:

🔧 @ASUS_ROG – for the incredible WRX90E-SAGE SE motherboard
💾 @GSkillGaming – for the high-capacity, high-speed DDR5 RDIMM kits
🔌 @Seasonic – for the rock-solid Prime PX-2200 PSU that held nothing back
❄️ @ThermalGrizzly – for thermal solutions that actually hold under pressure
🏆 And of course, @HWBOT – for keeping the competitive spirit alive