The more recent Pixel devices have a local accelerator for different machine learning tasks, they brand them Visual Core and more recently Neural Core. https://

The more recent Pixel devices have a local accelerator for different machine learning tasks, they brand them Visual Core and more recently Neural Core. https://www.androidauthority.com/google-pixel-4-neural-core-1045318 https://www.androidauthority.com/google-pixel-4-neural-core-... has more details and a lot of the speed up is probably tied to these being onboard.