User blog comment:TodoketeApproved/Sign Up/@comment-27070091-20161017185800/@comment-26458478-20161026124906

Fair enough. I did a calc on the boulder Pearl kicked away.

The boulder was roughly the same size as Pearl, who I can assume is about 6 feet tall (taller than Steven, Amethyst, and Greg, but shorter than Garnet). The boulder was most likely limestone or granite, which weighs roughly 175 pounds per cubic foot. Multiply that by 6, and you get 1050. So Penny is indeed stronger than Pearl.

But let's look at durability again. While you had a good point pointing out Pyrrha may have just been controlling Penny, there is no way Pyrrha could've actually known Penny was a robot. No one except her father and Ruby knew until she was killed. Penny was killed simply from the knives and whatever string-things they were on.

Pearl, on the other hand, took a pretty bad beating from Sugilite, as mentioned before. I don't have a picture, but Sardonyx's strength scale from Know Your Fusion gives us a pretty good idea of where she is compared to the other (main) Crystal Gems: stronger than all of them. This is already kind of obvious in hindsight, but keep in mind Sugilite is a fusion of Amethyst and Garnet, one of the strongest Gems on the team, capable of destroying a continent. Penny may hold the strength and speed advantage, but Pearl has the edge in experience (by thousands of years) and durability (as discussed), and then there's the aforementioned mechanical genius Pearl has. This normally doesn't matter in a fight, but Penny IS a robot. Not sure if Pearl could actually figure that out, but whatever.