AMD’s upcoming Ryzen 9 9950X3D has appeared in a leaked CPU-Z screenshot, confirming that it maintains the same boost clock speed as the non-X3D Ryzen 9 9950X. This marks a significant shift from earlier X3D generations, which typically reduced clock speeds to manage thermal constraints caused by stacked cache.
CPU-Z Leak Confirms Key Specs #
The engineering sample shown in the screenshot reports a boost clock of 5.65 GHz, with occasional peaks at 5.7 GHz, effectively matching the standard 9950X. This model—codenamed Granite Ridge—continues AMD’s focus on high-efficiency Zen 5 designs.
Additional details from the CPU-Z window include:
- TDP: 170 W
- Cores / Threads: 16C / 32T
- Cache: 96 MB + 32 MB L3 listed, confirming its 3D V-Cache configuration
With an extra 64 MB of stacked L3 cache, the 9950X3D is expected to deliver noticeable gaming improvements while preserving strong productivity performance.
Refined 3D V-Cache Architecture #
The Ryzen 9 9950X3D features two CCDs, each with eight Zen 5 cores and 32 MB of base L3 cache. One CCD includes an additional 64 MB stacked cache die, resulting in:
- 128 MB total L3 cache
- 144 MB total L2 + L3 cache combined
A key architectural change places the stacked cache beneath the CCD instead of on top. This allows CPU cores to maintain direct contact with the IHS, significantly improving heat dissipation and enabling AMD to maintain high boost frequencies typically reduced on earlier X3D CPUs.
New Chipset Driver and Platform Updates #
AMD is preparing the 1.0.0.7 chipset driver, featuring enhanced scheduling and optimization for Zen 4 and Zen 5 3D V-Cache processors. This should improve multi-CCD behavior, especially in gaming workloads.
Expected Launch at CES 2025 #
The Ryzen 9 9950X3D and Ryzen 9 9900X3D are expected to debut at CES 2025, potentially alongside new GPUs built on RDNA 4 with support for FSR 4.
With no clock-speed compromises and a more thermally efficient 3D V-Cache design, the 9950X3D is positioned as one of AMD’s strongest enthusiast-grade CPUs to date, targeting gamers and high-performance users worldwide.