The AMD Ryzen 7 9800X3D launched this November remains the fastest processor for PC gaming, but with just an 8-core/16-thread configuration, its performance in multithreaded productivity pales in comparison to the alternatives, including from AMD's own camp, such as the Ryzen 9 7950X3D. The company is planning to expand the Zen 5 X3D line of desktop processors in Q1-2025, with the introduction of its high core-count Ryzen 9 series SKUs, the Ryzen 9 9950X3D, and the Ryzen 9 9900X3D. HXL, a reliable source with hardware leaks, says that the Ryzen 9 X3D SKUs will lack the kind of "frequency debuff" we've seen with the older generation Ryzen 9 X3D chips such as the 7950X3D and 7900X3D.

On the 7950X3D, only one of the two 8-core CCDs comes with 3D V-Cache, the other is a regular CCD with 32 MB on-die L3 cache. The CCD with the 3D V-Cache has its frequency "debuffed" compared to the other CCD, mainly to deal with the thermal limitations of the way the 3D V-Cache is stacked on top of the CCD. With the Ryzen 9000 X3D generation, AMD has redesigned this CCD + L3D stacking such that the CCD is now above, directly interfacing with the STIM and IHS; with no conductive structural silicon along the way. This means that the CCD now thermally behaves like a regular Zen 5 CCD; and for this reason, not only will the CCD with 3D V-Cache on the 9950X3D/9900X3D have the same clock speeds and boosting behavior as the one without 3D V-Cache; but also the 9950X3D and 9900X3D are expected to ship with similar, if not identical clock speeds to the 9950X and 9900X.