A CPU-Z screenshot for what is reportedly an AMD Ryzen 9 9950X3D engineering sample appears to have confirmed its rumored configuration. It had been hoped that AMD’s flagship Ryzen 9 9900X3D and 9950X3D processors would be the first dual-CCD offerings to get direct access to 3D V-Cache but it looks like that is not to be. A more recent rumor has claimed these processors would be the first to feature matching clock speeds to their non-X3D counterparts, something that so far has not happened with any other X3D CPU, and now according to the aforementioned CPU-Z screenshot seems to be more or less true for the Ryzen 9 9950X3D.
https://t.co/gaRLbdpToW pic.twitter.com/YovV98drQa
— Huang514613 (@94G8LA) December 26, 2024
Ryzen 9 9550X3D Rumored Specs
According to VideoCardz the above CPU-Z screenshot is for an AMD Ryzen 9 9950X3D engineering sample whose OPN code is hidden. It shows a 16c/32t processor with a boost clock multiplier of up to 56.5 or 5.65 GHz with a 170W TDP. These align with the Ryzen 9950X, which has a boost clock of up to 5.7 GHz and an identical TDP. The Granite Ridge codename also aligns with the AM5 Ryzen 9000 series. The combined cache allotments match the 144 MB expected for the Ryzen 9 9950X3D. The L3 cache shows one CCD with 96 MB (32 MB standard + 64 MB 3D V-Cache) and then 32 MB for the other CCD.
This design is similar to what was used for the Ryzen 9 7950X3D when AMD introduced an OS scheduler for directing gaming-related tasks to the CCD with the 3D V-Cache. A big detail left unknown with this screenshot is if both CCDs can operate at the same maximum boost clock speeds. It was seen with the Ryzen 7950X3D that only the die not using the 3D V-Cache could hit the advertised maximum clock rate. If AMD is continuing with the design from the previous generation it will be interesting to see if it optimizes the OS scheduler for the 9000 series.
| Processor | Cores/Threads | Clock Speeds (Base/Boost) | Total Cache | TDP |
| Ryzen 9 9950 X3D | 16/32 | 4.3 GHz/5.65 GHz | 144 MB | 170W |
| Ryzen 9 9950X | 16/32 | 4.3 GHz/5.7 GHz | 80 MB | 170W |
| Ryzen 9 9900X3D | 12/24 | 4.4 GHz/5.6 GHz | 140 MB | TBA |
| Ryzen 9 9900X | 12/24 | 4.4 GHz/5.6 GHz | 76 MB | 120W |
| Ryzen 7 9800X3D | 8/16 | 4.7 GHz/5.2 GHz | 104 MB | 120W |
Engineering samples and CES 2025
Since this is reportedly an engineering sample, specifically revision GNR-B0, final specifications could change by the actual product launch but these do seem to align with what is expected. AMD shocked the PC community when it swapped the 3D V-cache layering by moving it underneath the CCD thus allowing the processor direct contact with its heatspreader and allowing for higher clocks than the previous generations. AMD is expected to unveil more of its Ryzen 9000 series processors at CES 2025 and the Ryzen 9 9900X3D and 9950X3D are both expected to be included at the tech event in Las Vegas.