Archive: https://archive.today/CTKO0 From the post: >>For about four years now, AMD has offered special “X3D” variants of its high-end desktop processors with an extra 64MB of L3 cache attached, an addition that disproportionately benefits games. AMD calls this “3D V-Cache” because it stacks the cache directly on top of (for Ryzen 5000 and 7000) or beneath (for Ryzen 9000) the CPU die. The 12- and 16-core Ryzen chips have their CPU cores split between two silicon chiplets, which has historically made the 7900X3D, 7950X3D, 9900X3D, and 9950X3D a bit weird. One of their two CPU chiplets has the 64MB of 3D V-Cache attached, and one does not. AMD relies on its driver software to make sure that software that benefits from the extra cache is run on the V-Cache-enabled CPU cores, which usually works well but is occasionally error-prone.