The HMS Dreadnought and the USS Des Moines had similar displacements, at about 17000 tons. Des Moines was scrapped in 2007, one of the last CAs. Armed with 9 8/55 rifles with autoloaders, she was also one of the last ships built with guns as her primary armament. The Dreadnaught had better (Well, thicker) armor and 12/45 inch guns, but had no radar, no spotter planes, and a speed of 18 knots compared to Des Moines 33 knots.
If these ships met in combat, who do you think would win? Would the extreme speed advantage of the Des Moine allow her to win a battle, or should she just make a hasty exit knowing the Dreadnaught would not be able to catch her?