These GPUs support APIs such as DX12, Vulkan and DX11. While doing so, Intel didn’t add support for old APIs such as DX9. Over at Intel.com, team blue explicitly states that Intel’s Alder Lake iGPUs and Arc A GPUs no longer support the now outdated API. Although, games can be emulated using Microsoft’s D3D9On12 interface. Now, Microsoft’s DX9 emulation tool does provide performance nearly on-par with native DX9. Intel has its primary focus on DX12 and DX11 due to its 3-tier optimization technique. Since DirectX is property of and is sustained by Microsoft, troubleshooting of DX9 apps and games issues require promoting any findings to Microsoft Support so they can include the proper fixes in their next update of the operating system and the DirectX APIs. All in all, Intel should really look forward towards fixing its DX11 optimization. Most games wont utilize DX9, however, DX11 remains a necessity. So far, only the A380 has been launched, wheras the other SKUs are en route (As per Intel).
