3D V-Cache Optimizer Driver For Ryzen 7 5800X3D Listed In Gigabyte's Chipset Download
https://www.tomshardware.com/news/v-...r-for-5800x-3d
... these drivers come directly from Gigabyte, as AMD has not officially released chipset driver 4.03.03.624 to its support page just yet.
It's even stranger that this driver is exclusive to Windows 10, which either confirms that AMD has partnered with Microsoft to bring this driver natively to Windows 11, or this driver doesn't control the L3 cache at all.
If we had to take a wild guess, we'd say this could be some type of new scheduling optimization for Ryzen CPUs. If the driver knows which workloads are more L3 cache sensitive than others, it could theoretically prioritize those workloads over others. But that's just a guess.