Order in terms of speed?

Algorithm A requires solving 3 problems of size n/3, and takes 4n computation steps to divide and combine.

Algorithm B requires solving 2 problems of size n/2 and takes n log log n computation steps to divide and combine.

According to me:

A == O(nlogn)

B == O(nlogn)

So both have same speed or how we will distinguish between the two?