Originally Posted by Cst79
Good question ! I was also wondering the same thing. Logically speaking there should be a difference but only significant if there are less physical chips on board for the 6GB model. I am very much inclined to order the 6GB model for a bit better battery life - 64GB of storage is plenty for me anyway.
Thing is, just like with flash storage, the controller and actual configuration of the chips will make power consumption vary wildly. We don't know the clock speed of the LPDDR4X RAM they are using, maybe
it's different between the 6 and 8gb version.
Same as with the NAND chips, many factors have an influence on the electrical consumption and maybe they tweaked the 128 and 256gb version to be more energy conservative at the cost of speed.... speed that may be regained due to the fact that NAND arrays/strings are faster when there are more cells in them.
Then there's the use-case... IF the 8GB version has worse energy consumption values, maybe it still has better battery life because it can store more apps in RAM and has less need to constantly access the flash memory ?
TL;DR : we can make hypothesis but in the end there's just too much we don't know to really say if one is more energy efficient than the other.