CONFIG_AMD_3D_VCACHE is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT
default or selected kernelversion does not have config value CONFIG_AMD_3D_VCACHE.
Result is shown for kernelversion 6.6.76

AMD 3D V-Cache Performance Optimizer Driver

modulename: amd_3d_vcache.ko

configname: CONFIG_AMD_3D_VCACHE

Linux Kernel Configuration
└─>Device Drivers
└─>X86 Platform Specific Device Drivers
└─>AMD 3D V-Cache Performance Optimizer Driver
In linux kernel since version 6.13 (release Date: 2025-01-19)  
The driver provides a sysfs interface, enabling the setting of a bias
that alters CPU core reordering. This bias prefers cores with higher
frequencies or larger L3 caches on processors supporting AMD 3D V-Cache
technology.

If you choose to compile this driver as a module the module will be
called amd_3d_vcache.

source code: