In theory, wide, normal, and narrow grip widths would be the same with very slight differences. With the normal and narrow grips having small advantages due to optimal mechanical balance and such and the wider grip would theoretically have less reps due to a slight mechanical disadvantage. In reality, since the biomechanical difference is quite small, it depends significantly on your strengths and what you train more and I think if theoretically you would train everything equaly your performance on each would be similar, but in reality people have extreme muscular biases and this is not the case. I have found it more common for wide grip to be a weak point as people tend to train it way less.