Final month, grasp overclocker and YouTuber SkatterBencher put up a video showcasing an eye-watering 4.6 to 4.8GHz all-core overclock on a Zen 3 64-core engineering pattern that includes an unlocked multiplier for overclocking. With overclocking formally disabled on AMD’s manufacturing Ryzen Threadripper 5000WX Professional CPUs, this can be one of many solely occasions we’ll ever see what AMD’s Zen 3 silicon can accomplish on the HEDT platform.
SkatterBench’s video is kind of detailed, with a runtime of just about an hour to showcase 5 other ways to overclock this 64-core CPU, together with a mixture of PBO tuning, the usage of AMD’s Curve Optimizer, and handbook overclocking. Cooling was achieved with a customized loop, so no unique cooling was used like liquid nitrogen.
To extract the eye-watering 4.8GHz overclock, SkatterBencher used a full handbook overclock with per-CCX frequency tuning and tuned for particular benchmark purposes solely as a substitute of concentrating on a totally secure CPU overclocking.
With this in thoughts, the overclock was achieved in 3DMark, with CCD4 being the very best high quality silicon within the chip and reaching an incredible 4.825GHz on these 4 cores within the CCD. The remainder of the core clusters couldn’t hit 4.8GHz, however they have been capable of get shut with a mixture of both 4.6GHz or 4.7GHz.
The 3DMark scores mirror the extremely excessive core clocks effectively, with a whopping 32,950 factors on the CPU core alone. This places the prototype chip miles forward of the record-holding rating on the 3DMark web site, with a rating of 27,202 factors.
It is a disgrace AMD didn’t unlock its production-ready Ryzen Threadripper 5000 Professional CPUs with overclocking help. In comparison with the earlier technology, Threadripper 5000 has a noticeable bump in frequency headroom. With Ryzen 3000 Threadripper, if you happen to needed to get near 4.8GHz, you would want to make use of unique cooling resembling liquid nitrogen.
