Wow, now that was quick!
Taken from Videocardz … SkatterBencher has a lengthy article and video on overclocking of the Ryzen 9 7950X3D, while der8auer spared no time in delidding the first Zen4 desktop CPU with 3D V-Cache.
Users will not find hidden motherboard menus to unlock “X GHz” settings for Ryzen 7000X3D. Those processors are officially locked for overclocking, at least in traditional way. To achieve the best performance out of the Ryzen 7950X3D, users must rely on technologies such as Precision Boost Overdrive 2 or EXPO (memory overclocking profiles), but those will not give the best results.
SkatterBencher goes into details explaining each of the possible strategies to unlock more performance out of Ryzen X3D CPUs. He explains the differences between two of Raphael dies (chiplets) in the new Ryzen 9 X3D package. This is where we learn that CCD0 (with 3D V-Cache) has a lower max frequency limit of 5250 MHz and lower voltage limit of 1.2V, while the CCD1 (without 3D V-Cache) can go higher up to 5750 MHz and 1.4V. For comparison, the original 7950X SKU has just one Fmax limit of 5850 MHz and 1.475 volts.
Source: Videocardz, SkatterBencher overclocking (article, video), De8auer delidding