From their website: NVIDIA Developer Program

Supporting the Community That's Changing the World

We believe that developers are the inspired, technical minds transforming the world around us with new innovations. You are key contributors to the advancement of every field—and the foundation of NVIDIA’s success. To ensure you have the best resources to do your life’s work, we’ve created an online space devoted to your needs, with access to free software, technical documentation, learning resources, plus peer and domain expert help to tackle the biggest challenges.