Re:64-bit ARM chips in iPhone 5S serve up taste of Intel-fre...
by coldtea on Wednesday September 11, 2013 @02:51PM
(#6369131)
>unless you're doing some extremely compute intensive image transforms.
Which a lot of the best apps for the iPhone do quite a lot.
Especially since nobody cares about the performance of todo apps, those are good enough already.
If you have tight numerical code that requires 64 bit floats/integers you may see a speed up.
If your code is for some reason register starved you may see a speedup.
Take the case of an app that downloads some JSON and makes a UITableView, it's not going to run much faster on 64 bit vs. 32 bit unless you're doing some extremely compute intensive image transforms.