Not op, but i will try. There's no distinction of biological computation and machine computation, there's just computation. What our brain is doing is computation, we may not fully understand how it does what it does yet, but what we know is that our brain is a very powerful computational machine, that's why it is so hard to emulate its processes. But as man-made machines are still getting more powerful, it will someday be able to do everything our brains do (from playing chess, go, understanding images, walking, driving to understanding language, creating a self-model a reality model and having self awareness).
But as man-made machines are not constrained to a skull and body, and other physical limitations, it will eventually surpass our processing power. There will be some limit for it though, just nowhere close to our wetware.