> GPUs do only simple things, but do them fast GPUs are immensely complex systems. Look at an API like Vulcan, plus it's shading language, and tell me again it

> GPUs do only simple things, but do them fast GPUs are immensely complex systems. Look at an API like Vulcan, plus it's shading language, and tell me again it's simple. And that's a low-level interface. Now add to that the enormous amount of software effort that goes into implementing efficient libraries like cuBLAS, cuDNN, etc. There's a reason other vendors have struggled to compete with NVidia. Disclaimer: currently employed at NVidia.