If you're getting bigger, you will be stronger. But I know that there are typically different workouts for if you are size training or strength training. I train for strength, not for size.
The two are intertwined somewhat. If you train for size, your strength is going to increase. If you train for strength, your size is going to increase a bit. The goal you train for is definitely going to show through more than the other though. I train for strength in order to punch and kick harder.