The leak confirms that the Ryzen 9 9950X3D won't have any reduction in its clock speeds and will feature the same boost clock as the non-X3D edition.
AMD Ryzen 9 9950X3D Appears as an Engineering Sample in CPU-Z, Revealing the Core/Thread Count and Various Specifications
As previously reported, AMD has indeed retained the same clock speeds as the non-X3D editions on the upcoming Ryzen 9 9000X3D chips. The processors are iterations of the existing high-end Ryzen 9 9000 chips but with additional L3 cache achieved through 3D V-Cache technology.
The flagship chip will be the Ryzen 9 9950X3D, which will feature similar specifications to the non-X3D edition, but this time it's much different than its predecessors. Typically, you will find a downgrade in the core clocks (mostly base clock) in some X3D chips, but Ryzen 9 9950X3D is retaining the same 5.7 GHz as was leaked in a CPU-Z screenshot. It was 5.65 GHz, to be exact, and, as per the window screenshot (via @94G8LA), this is an engineering sample code-named Granite-Ridge, which clearly indicates it's a Ryzen 9000 chip.
One more thing to point out in the CPU-Z window is that the processor will have the same 170W TDP rating as the Ryzen 9950X. As the cache size shows a 96 + 32 MB configuration, it's clear that it's an X3D edition, and through its core/thread configuration of 16/32, we can confirm that this is indeed the Ryzen 9 9950X3D. This means we aren't seeing any downgrades compared to the 9950X, and this also indicates similar productivity while upgrading the gaming capabilities due to an additional 64 MB of L3 cache.
The chip will have two Core Complex Dies (CCDs), each carrying eight cores with 32 MB of dedicated L3 cache. One of them will feature an additional 64 MB of L3 cache chiplet underneath the CCD to bring the total L3 cache count to 128 MB and 144 MB together with L2. Unlike previous generations, placing the L3 cache chiplet underneath the CCD allows the cores to be in direct contact with the IHS for superior cooling. This allows for retaining the core clocks while unlocking the potential for further overclocking.
Both the AMD Ryzen 9 9950X3D and Ryzen 9 9900X3D are expected to be unveiled at CES 2025 alongside FSR 4 and RDNA 4-based graphics cards such as Radeon RX 9070 XT.
About the author: Sarfraz Khan is a hardware reporter with a focus on PC components and the builder community. With years of experience writing about PC hardware and laptops, his work has been featured on several reputable technology publications. Sarfraz's hands-on experience is demonstrated through his first-person accounts of using and comparing different hardware configurations, providing practical and relatable insights for everyday users. His technical analysis is respected by peers in the enthusiast community and has been cited by specialized hardware sites such as Germany's Igor's Lab.
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