That's how the Ryzen 9 7950X3D works, after all, yet the tweet above about the Cinebench scores gives reason to doubt that hypothesis. The Ryzen 9 7950X3D does consistently perform slightly behind ...

This is consistent with the 3D V-Cache setup of its predecessor, the Ryzen 9 7950X3D. Notably, the chip is marked as an engineering sample, signifying that it is currently undergoing validation ...