Since writing good, solid OpenGL code has been (and probably still is even with DX8) FAR easier than doing it in DirectX, OpenGL renderers tend to be better written than their DirectX counterparts.

Valve will be speaking about its Linux/OpenGL advancements at SIGGRAPH 2012 next week. SIGGRAPH is where we usually hear about the latest OpenGL and DirectX news, too -- so stay tuned!

Some Windows users are facing issues with NVIDIA OpenGL. OpenGL is an API that helps the computer render 2D and 3D images. Due to this, affected users are unable to do graphically intensive tasks ...

How difficult is OpenGL? How difficult can it be if you can build a basic renderer in 500 lines of code? That’s what [Dmitry] did as part of a series of tiny applications. The renderer is part ...

In short: OpenGL is faster than DirectX. As for why OpenGL is faster than DirectX/Direct3D, the simple answer is that OpenGL seems to have a smoother, more efficient pipeline.