Comparing the King George V class's 14-inch guns

Did the King George V class's 14-inch guns perform like 15-inch guns?

They could compare well with older 15-inch weapons on some measures, but a contemporary new 15-inch design would have been more capable.

Gun performance depends on the statistic and range being compared. The 14-inch gun was a newer design than the 15-inch weapons fitted to most British ships, so it could look competitive on selected measures. Calibre alone therefore gives an incomplete comparison. A new 15-inch design developed on the same technological footing would have been substantially better, making design generation as important as nominal bore size.