Asking which of the two is more capable is like asking which one from a banana and a carrot is the more capable.
Both are something edible, but are not the same thing, not the same properties, not the same use etc..
There is no better or worth each have it's own use (ok if the specs are really close you can compare, but even there, a small attiny, event if it's a 8pin device have it's use, and it not "better" or "worse" than an intel core i7, it's just not made for the same use.