There really aren't any serious competitors. AMD and Intel have GPU offerings, but they are too busy fighting for laptop, server, desktop market. Intel's graphi

There really aren't any serious competitors. AMD and Intel have GPU offerings, but they are too busy fighting for laptop, server, desktop market. Intel's graphics IP is just a value-add for chipsets to keep competitors out of the chipset market. Any new investment for startups is going toward ML acceleration, which is like GPGPU but with different topology for NN optimization. So to answer your Q: no one can compete with NVIDIA, so no one wants to invest there. IMHO, of course.