Quote:
Originally posted by Vespertine
I agree that being 64-bit is probably doing nothing for the phone yet, as it can't take advantage of the additional possible memory addresses without more RAM. But it's good to lay the groundwork for future devices.
Why hasn't anyone proposed that the speed increases are mostly from major OS optimizations ...? This was the first major re-write of iOS since 2007, they could have focused on just making it much more efficient (as they're doing with Mavericks) 
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Because the iPhone 5 has the same dual-core and the same 1GB.
If this was the case the iPhone 5 would be the same speed as the iPhone 5S. But it isn't.
The only thing that's different is that the chip has a different 64 bit architecture than the iPhone 5 & 5C's 32 bit.
So if that's the only difference to the chip, and the specs haven't changed then it has to be the architecture itself. Because unless Apple have a quad core listed as a dual core than it really can't be anything else.