Ubisoft claims that Watch Dogs' 'High' texture detail setting requires a 2GB frame buffer while its 'Ultra' textures need 3GB of frame buffer memory. In these games, the average VRAM use with all detail levels maxed out was about 1.5GB - BF4 will break 2GB if you use the supersampling option to render the game internally in 4K mode, and Total War: Shogun 2 wants a bit more than 2GB of VRAM if you max out every single graphics setting and enable 8x MSAA. In the past, I've compared VRAM usage in games like Guild Wars, Battlefield 4, and Total War: Shogun 2. Watch Dogssucks down far more memory than any other modern PC game I'm aware of this game's VRAM demands are far, far outside the norm for a modern 1080p title. Ubisoft royally screwed up its suggested VRAM (graphics card frame buffer) settings. The game is infamous for not running very well on PCs - and after some legwork, I've figured out a hefty chunk of the reason why: Over the past few weeks, I've spent a significant amount of time with Watch Dogs.