Hi,

We sell presentation app which uses Direct3D 9. It works slow on laptops with dual video cards (Intel + NVIDIA or AMD). We have to ask users to manually choose NVIDIA video card for our app.

Is there any API to automatically select dedicated NVIDIA/AMD video card in our app on Windows 10?

Thanks,

https://www.gamedev.net/forums/topic/690360-game-uses-igpu-instead-of-dedicated-gpu/?tab=comments#comment-5347850

Many thanks for your advice!

Solution for Intel + NVIDIA works fine (NvOptimusEnablement)

But Intel + AMD (AMD + AMD) ignore flag AmdPowerXpressRequestHighPerformance

Why?