Basic chopping, slicing, and shredding were no problem for most of the food processors we tested. You can spend less if you don't need a large-capacity unit or if you don't bake bread (or if you have a stand mixer for kneading).
Food choppers are handy for tedious chores such as mincing garlic. The differences between food processors and choppers: power, capacity, and function. Smaller, lighter, and less expensive choppers make quick work of cutting up small batches of nuts or herbs that would get lost in a food processor.
Food processors are jacks of all trade that can chop, slice, shred, and purée many different ingredients–sometimes in great quantity–plus tackle heavier jobs like kneading dough. Mini-choppers are good for lighter work and smaller jobs–especially useful when you only need to prep a handful of basil or chop some nuts.