On a custom water-loop configuration, extreme overclocker SkatterBencher was able to push AMD’s unreleased Ryzen Threadripper 5990X HEDT CPU to an astounding 4.82 GHz across all 64 cores.
To surpass 100,000 points in Cinebench R23, the AMD Ryzen Threadripper 5990X CPU was overclocked to 4.82 GHz across all 64 of its Zen 3 cores.
The AMD Ryzen Threadripper CPU SkatterBencher tested is the 5990X, which the red team has not yet formally released. In fact, the overclocker was able to obtain an engineering sample with 64 cores, 128 threads, 288 MB of L3 cache, and stock clock speeds of up to 2.65 GHz (2.27 GHz on average). The ASUS ROG ZENITH II Extreme Alpha with 32 GB (8 x 4) DDR4-2144 memory was used to test the CPU. An EK-Quantum custom-loop water cooler was used for cooling.
Similar to the AMD Ryzen Threadripper 5000 samples that appear in various benchmark databases, this particular sample is identified by the OPN code “100-000000443-40 Y.” This demonstrates that AMD did indeed have standard Non-Pro chips as engineering samples but chose not to release them for reasons that are currently unknown. According to AMD’s most recent HEDT strategy, the company appears to be primarily focused on the workstation and Pro segments, which means that the standard Threadripper X-Series chips won’t be in use for the foreseeable future. The fact that the CPU is compatible with the TRX40 ZENITH II Extreme is also significant, as opposed to the Threadripper 5000WX CPUs, which are only designed to run on the more expensive WRX80 platform.
Returning to the benchmarks, SkatterBencher is renowned for employing a variety of overclocking techniques, including manual overclocking, PBO, and curve optimizers. Manual overclocking produced the best results on the AMD Ryzen Threadripper 5990X CPU, which is not a huge surprise. The only drawback is the limited single-threaded maximum boost frequency, but overall manual overclocking is preferable to PBO when looking for the highest performance gains. Each CCD on the Ryzen Threadripper 5990X chip was tested, and CCD4 produced the best tuning results, achieving up to 4.82 GHz at 1.45V.
Cinebench R23 AMD Ryzen Threadripper 5990X 100K Record:
Compared to a stock CPU, AMD Ryzen Threadripper 5990X OC:
Performance-wise, the manually overclocked AMD Ryzen Threadripper 5990X CPU outperformed the stock HEDT chip by more than 50% in the AI Benchmark, 58 percent in Cinebench R23, and more than 80% in the 3DMark CPU Profile benchmark. In Cinebench R23 Multi-threaded, the CPU also broke the 100K (100,000) score barrier, which is absolutely insane. The chip reached its maximum clock speed of 4.525 GHz and a CPU temperature of up to 95C during the Cinebench run. The CPU’s insane 691W package power consumption was caused by the manual overclock.
Not only that, but the overclocker also offers a guide for getting the AMD Ryzen Threadripper 5990X CPU to 4.65 GHz in just 5 minutes. Until users can purchase the chip in the DIY market, it is unknown whether this will function the same way with a 5995WX. There are some motherboards that support overclocking on Threadripper Pro CPUs, including the MSI WS WRX80, ASUS WRX80 PRO WS SAGE SE, ASRock WRX80 Creator, and Gigabyte WRX80 SU8. After being contacted by an official AMD representative, Tomshardware has confirmed this, as shown in the quote below:
[Editor’s Note: Following the publication of this article, an AMD representative emailed us to clarify that, in contrast to what is stated below, the 5000 WX-series is actually unlocked for overclocking. Additionally, the business provided a link to documents available to the general public about Threadripper 5000 WX, which, in part, states that “Select WRX80 motherboards from our ODM partners will support both memory and CPU overclocking for users looking to push the limits of their workstation even further.”
AMD has stated that they will continue to produce Threadripper CPUs and will launch Zen 4 parts in 2019. It is unclear, however, whether these parts will be available in DIY versions for popular HEDT platforms or as Pro-only options.