Study up on it. In general, blacks that don't have any genetic white influence are more emotional but less intelligent than whites. This is on the average. There are plenty of blacks who are of far higher IQ than some of the whites. But in general, this is not so.

A place to look for a lot of info regarding this is in the books and studies listed at http://www.amren.com/archives/.

Yet, what difference does it make? Blacks are people. Often blacks are far better people than whites.