--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Sat, Aug 6, 2016 at 2:57 PM, Stefan Monnier <[email protected]> wrote: > Note also that you will sometimes *lose* performance by going to 64bit > because the pointers use up twice as much space, so if your program > needs to store&manipulate many pointers, it will use up more cache space > and memory bandwidth, which will tend to slow it down. did i hear right that there's also a core design difference between the A7 and the A53 which results in a performance/watt loss of around 15%? so you're actually *worse off* going to 64-bit at the moment, if power (battery life) really matters. i think it was on anandtech or something. l.
