> Intel's memory controller on their -U (Ultrabook) chips had a 16GB limitation To be more specific, they don’t support LP-DDR3 with over 16gb. All laptops whi

> Intel's memory controller on their -U (Ultrabook) chips had a 16GB limitation To be more specific, they don’t support LP-DDR3 with over 16gb. All laptops which support 32gb use regular DDR memory, not the low power variant. DDR4 is about the same as LP-DDR3 in power consumption under heavy load, but when not, LP-DDR3 is significantly less power usage. So while Intel is to blame for the cause of forcing a choice, ultimately the decision to prioritize battery life numbers is the reason you don’t see more 32gb laptops.