Game Ready driver for Fortnite, adds the Nvidia Freestyle feature for applying post-process filters to games, and provides security fixes for Meltdown and Spectre...
http://www.pcgamer.com/nvidias-latest-gpu-drivers-includes-a-spectre-fix-and-fortnite-optimizations/
http://www.pcgamer.com/nvidias-latest-gpu-drivers-includes-a-spectre-fix-and-fortnite-optimizations/