Not possible. VirtualBox doesn’t support GPU passthrough, has never on Windows, and the amount of available VRAM you can give to a VM is maxed at like 128 MB. There was an experimental module that only worked on Linux hosts, but they removed it in the meantime because it never really worked well and hardly anybody used it.
Out of the free software solutions I think QEMU is the only one that supports it, but I can’t guarantee that.