Configuring a game to utilize a particular graphics card.
Configuring a game to utilize a particular graphics card.
There seems to be no straightforward method to restrict a VR game on Steam to a specific GPU. You've already explored various options and encountered similar issues with DisplayPort connections. The performance differences between your 1080ti and 1070ti might be due to their capabilities rather than the GPU itself, so you may need to adjust settings or configurations within the game to optimize its use of each device.