At the end of the day it's all about how the LED is driven= how bright. Just because the ratings are 'x', doesn't mean the design engineer is going to drive it that hard. I have several LED strips, 2ea. 5050, and 3ea. 5630, but from different places. Even the like strips don't match as the ballast resistors are different on the strips. 5630's are supposed to be brighter than the 5050, but not either of these