I use an AMD card, playing on Bazzite. How and when, do i know when its best to use Vulkan or Directx on linux?
this post was submitted on 14 Jun 2024
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What about OpenGL? What's that and should I choose it instead of DirectX?
OpenGL is a bit like Vulkan, but discontinued since... 2014, with a single update since then. It was actually stopped because Vulkan seemed better, and both API's were maintained by the same organisation.
In general it's more likely to work on older devices, but would be less performant than Vulkan.
So if a game has OpenGL and DirextX as options such as TF2), it's generally better to pick DirectX?
If you have an Nvidia GPU definitely pick DirectX. On AMD it's more of a tossup, depends on the game and the features in question but generally it won't need to translate OpenGL, so it has higher maximum performance potential.
OpenGL is an older graphics API with a lot of issues I won't get into here.
You're almost guaranteed to be better off using DXVK.
TIL
To expand - DirectX is a proprietary Windows solution. Any time you pick it on Linux, it will run through a translation layer
OpenGL/Vulkan are cross-platform
OpenGL is to DirectX 11 as Vulkan is to DirectX 12
Microsoft kept the same branding, but also followed in Vulkans/Metals footsteps of using lower level calls to the hardware. This makes the graphics drivers simpler, and can be way more performant because the CPU doesn’t have to do as much