Nvidia GeForce 331.40 Beta Released - BF4 Ready Driver, Adds HBAO+ For All DX9 & DX11 Apps
Lost Planet 2: DX9 vs. DX11 – Techgage
Official] DX9 vs DX11 performance difference | Page 16 | Studio-397 Forum
Intel Xe And Arc Graphics Lack DX9 Support Forcing DX12 Emulation | HotHardware
LOST ARK DX9/DX11 FPS BENCHMARK : r/lostarkgame
The State of DirectX 11 Gaming - SemiAccurate
JJ - PimpmuckL al Twitter: "Alright here you go: DX11 vs DX9 vs DX9ex vs Vulkan vs OpenGL on an AMD GPU. tl;dr: -dx11 is your best bet if it doesn't bug