> there is nothing especially performant about D3D11. Not in D3D11 itself, but due to it being the prevalent API, drivers are optimized for it. See https://med

> there is nothing especially performant about D3D11. Not in D3D11 itself, but due to it being the prevalent API, drivers are optimized for it. See https://medium.com/layerth/benchmarks-dota-2-streaming-feat-i7-vs-ryzen-b9a4936499bd https://medium.com/layerth/benchmarks-dota-2-streaming-feat-... for example. > FYI, "bytecode shaders" have nothing to do with shader performance. They have some impact on initial parse time, but little else. You're right, it shouldn't make that much of a difference, but I think driver/compiler optimizations for HLSL (and lack thereof for GLSL) is one of the reasons, games are faster on Windows using the AMD driver than Mesa. It also plays a role that most ports are using HLSL to GLSL translators. There definitely are cases where the open source driver outperforms the proprietary Linux driver. But I haven't seen a case where a game runs faster on Linux than on Windows with AMD hardware.