Watch Dogs: Legion

Watch Dogs: Legion is a game developed and published by Ubisoft on eight different platforms on October 29, 2020 (some versions were released over the next month along the launches of consoles of 9th generation).

The game is using Disrupt engine which has some relation to AnvilNext engine used for Assassin's Creed series of games but has features absent from the latest iteration of the latter, like support for DirectX Raytracing and integration of Nvidia DLSS upscaling and antialiasing solution.

Watch Dogs: Legion is using raytracing to render some of in-game reflections.

The game was launched in partnership with Nvidia.

PC performance benchmarks
The game has a built-in benchmark which allow to compare results from different performance guides but doesn't represent the in-game performance too accurately.

Key performance takeaways

 * The game is very demanding when raytracing (RT) is used, to the point where you have to enable DLSS to get to 60 fps even on high end GPUs at the moment of game's launch.
 * Game's DirectX 11 renderer generally provides better performance than DirectX 12 one. The latter is required for RT however.
 * Without RT the game favors AMD GPUs, with RT Nvidia GPUs take the lead.
 * The game tend to use more than 6GB of VRAM in 1080p and more than 8GB in 4K - especially with high resolution texture pack installed and RT enabled.

Console versions comparison
The game is using dynamic resolution scaling (DRS) and temporal resolution reconstruction.

Main console versions characteristics

 * The game is using adaptive vsync on all consoles.
 * The game use raytraced reflections on PS5 and XS consoles in 30 fps mode.
 * Raytraced reflections are rendered at quarter of frame resolution with checkerboarding reconstruction.
 * Title Update 4.5 (released on 1st of June 2021 ) has added an optional 60 fps mode to PS5 and XS consoles.
 * This mode trades raytraced reflections and resolution for performance.
 * Texture filtering is of lower quality on Xbox One (S).
 * Xbox Series S has a number of rendering quality cut-backs when compared to XSX and PS5.