Chip is the brains of the duo and thus is shown to be clever, fearless, and somewhat bossy. Unlike his best friend, he's a quick thinker. When dealing with Donald, Chip shows to be much more of a threat than Dale, both mentally and physically. He is also no-nonsense and becomes easily frustrated with Dale's incompetence.
Dale is sometimes lazy, dim-witted, and clumsy, and can be a little more emotionally sensitive. In earlier appearances, he was completely foolish to the point where he can truly be called an idiot. In later years, that aspect of his personality was toned down to just being nervous, timid, wisecracking, laid-back, and reluctant.
While the two are nearly inseparable and count each other as their closest friends, the one thing that can tear them apart is a romantic interest. They have been known to have feelings for the same girl most of the time and battle each other for the affections of the girl in question.