The adoption of DirectX 9 was rapid, with many game developers choosing to use the API to create their games. By 2005, DirectX 9 had become the de facto standard for PC game development, with over 90% of PC games using the API.

The market answered resoundingly. For almost six years, DirectX 9 was the de facto standard.

These iterations enabled more advanced lighting, shadows, and textures, which were fully utilized by the Xbox 360 and PlayStation 3 generation of consoles.

While developers have moved on to the multithreaded glory of Vulkan and the ray-traced realism of DX12 Ultimate, the backbone of the PC gaming revolution remains. It survived the Vista exodus, outlasted the 32-bit era, and continues to power hundreds of millions of integrated GPUs worldwide.