Actually it seems like WebGL is doing it even faster. Which makes sense - machine learning involves a lot of matrix math, which GPUs are made for and CPUs aren't.
This is actually what I'd expect, but the website feels quite misleading. Advertising that a GPU-based approach can outbeat a CPU for neural nets is not a very strong commercial claim :)
> You can learn more about TensorFire and what makes it fast (spoiler: WebGL)
Does this mean that using a GPU in a browser through WebGL yields the same speed than a desktop CPU?