Two X3D chiplets don't seem to offer significant benefits, and it's likely that the report about AMD preparing a dual X3D Ryzen 9000 CPU is untrue.
Ryzen 9000X3D with Dual X3D CCDs Reportedly Does Not Exist; Such a CPU Could Only Bring About 4% Boost in Performance
One of our previous posts suggested that AMD could be working on a new Ryzen 9000X3D CPU, which is the first-ever chip to feature dual X3D chiplets for both CCDs . With such a configuration, it would surpass the L3 cache of the Ryzen 9 9950X3D by 64 MB, bringing the total L3 cache capacity to 192 MB. However, the report isn't yet official, and as per a leaker, such a CPU doesn't exist.
The user "wjm47196" on Chiphell forums (via @9550pro ) says that there is no such thing as a "Dual X3D" Ryzen 9000X3D CPU, and the report