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AMD explains why Ryzen 9 9950X3D 3D V-Cache is available on only one core block (CCD)

Published by Andrii Rusanov

After the new NVIDIA video cards, the second main news of CES 2025 for PC gamers was the announcement of AMD Ryzen 9 9950X3D and 9900X3D processors. They received 3D V-Cache only on one CCD.

Many commentators express dissatisfaction with the fact that only half of the processor cores received additional cache, as in the previous generation. AMD explained why a second additional cache chip would be impractical.

The site HardwareLuxx asked AMD if there were technical reasons for this decision. The company replied that there are reasons, but purely economic. A processor with cache on two CCDs would be too expensive, while not providing a corresponding increase in performance. Gamers would not benefit from having a second CCD with 3D V-Cache as much as from the transition from 32 to 96 MB of L3 cache.

For the Ryzen 9000X3D series, AMD improved the X3D chip design by changing the layout of the Core Complex Die (CCD) and the 3D V-Cache matrix. This change reduces heating, allows an increase in clock speed, and enables overclocking. The new Ryzen 9 Zen 5 processors with 3D V-Cache will have higher clock speeds (as in chips without additional cache) and consume up to 170 Watts.

AMD has considered several times creating a special version of the processor with 3D V-Cache x2 CCD. However, the decision on this matter is still negative, despite the anticipation of such a processor and the likely willingness of some users to pay for it. Undoubtedly, games and some applications would benefit from such a technical solution, and it is technically possible to create it, but not yet economically viable.