http://www.pcgameshardware.de/The-Witcher-3-PC-237266/Specials/Grafikkarten-Benchmarks-1159196/
Looks like you need Titan X SLI for the full glory at 4K.
No VRAM usage figures, though.
Looks like you need Titan X SLI for the full glory at 4K.
No VRAM usage figures, though.