The AMD Ryzen 9 9950X3D and 9900X3D processors are said to finally implement a long-awaited feature regarding 3D V-Cache technology. AMD arguably took back the gaming CPU crown when it introduced its Ryzen 7 5800X3D processor back in 2022. By providing a larger L3 memory cache to the CPU it allowed the 8-core / 16-thread processor to compete favorably with others that cost much more while also consuming less power and generating less heat. Since then AMD followed up with many other processors with added 3D V-Cache technology but its integration among CCD chiplets has not been optimal. AMD’s first round of AM5 featuring 3D V-Cache technology, most notably the Ryzen 7 7800X3D from 2023, saw significant performance gains over the AM4 Ryzen 7 5800X3D, but its AMD Ryzen 9 9950X3D and 9900X3D processors could be real game changers.
Earlier this week details began to emerge for AMD’s Ryzen 9000 series and some have wondered how 3D V-Cache would be integrated this time around on its flagship Ryzen 9 9950X3D and 9900X3D processors. According to a new report, it appears that both will see their added L3 memory split among both chiplets and thus potentially avoid performance issues related to QoS scheduling.
Per Benchlife:
According to the new report, the 16-core/32-thread Ryzen 9 9950X3D will have 96 MB per CCD, or up to 208 MB L2 + L3 combined. The Ryzen 12-core/24-thread 9 9900X3D drops slightly to 204 MB L2 + L3 combined. Official software documentation from AMD seems to collaborate, at least in part for Zen 5 X3D parts, by indicating the maximum amount of V-Cache per CCD. Now this all should still be considered a rumor but it does look promising and could indeed hint at the next king of the gaming CPUs. Of course, if this rumor is accurate, testing will be needed to reveal how effective this design is.
The Zen 5 X3D is still capped at 96 MB per CCD. https://t.co/nSOZHrc23K pic.twitter.com/bE2SW7x0xR
— HXL (@9550pro) September 27, 2024