It depends on what you're doing. Doubles are still slower than floats due to twice bigger requirements imposed on memory performance & cache size. So if you doi

It depends on what you're doing. Doubles are still slower than floats due to twice bigger requirements imposed on memory performance & cache size. So if you doing a "calculator" style of work, there's not much difference, but if you're processing large arrays of data, it's still something you should think of.