On average male and female I.Q is about even. However, there are more extremely intelligent men than women, and more extremely stupid men than women. Female I.Q has fewer variations whereas with men the range is wider. That's why there's lots of male Nobel Prize winners and also why there's a lot of men doing extremely stupid stuff compared to women.
There's an interesting Forbes article about it, but I won't link it as you need to disable ad-block.