Linked by Thom Holwerda on Tue 10th Sep 2013 18:25 UTC
Apple Apple's event is going on right now - and most of the new stuff already leaked weeks and months ahead of time. So, we're getting an iPhone 5S, an iPhone 5C, and iOS7 will be available later this month. I like the design of the 5C more than of the 5S; it's more playful, colourful - harking back to the coloured iMacs and PowerMac G3s. Too bad it doesn't come in red.

The fingerprint sensor in the 5S is interesting, but I wonder how accurate it will be in the real world; on top of that, with all the NSA news, I'm not particularly keen on Apple reading my fingerprint all the time. Supposedly, applications don't have access to it and it's not stored in the cloud, but I have little to no trust for companies.

The biggest news for me is the fact that the iPhone 5S has a new chip - the A7 - which has the honour of being the first 64bit chip inside a smartphone. iOS7 and first party Apple applications are all 64bit, and Xcode obviously supports it. While this obviously future-proofs the platform for more RAM, I wonder what other motives are involved here. ARM desktops and laptops, perhaps?

I doubt 64bit will provide much benefit today, but you have to hand it to Apple: at least they're done with the transition before it's even needed.

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RE[7]: so so
by cfgr on Wed 11th Sep 2013 19:29 UTC in reply to "RE[6]: so so"
cfgr
Member since:
2009-07-18

Yeah, but relatively speaking it wouldn't make much of a difference. For a regular user, RAM uses about 4% of the total power compared to CPU (14%), GPU (14%) and GSM (44%) [1]. So if doubling the RAM can reduce CPU/GPU usage by 1/7th then that would be an improvement for battery life.

[1] http://www.nicta.com.au/pub?doc=3587

See http://stackoverflow.com/questions/12906083/correlation-between-mem... where someone made a much better and more complete post.

Reply Parent Score: 2

RE[8]: so so
by p13. on Wed 11th Sep 2013 19:32 in reply to "RE[7]: so so"
p13. Member since:
2005-07-10

Yeah, but relatively speaking it wouldn't make much of a difference. For a regular user, RAM uses about 4% of the total power compared to CPU (14%), GPU (14%) and GSM (44%) [1]. So if doubling the RAM can reduce CPU/GPU usage by 1/7th then that would be an improvement for battery life.

[1] http://www.nicta.com.au/pub?doc=3587

See http://stackoverflow.com/questions/12906083/correlation-between-mem... where someone made a much better and more complete post.


Doubling the ram would double the draw ...
When you run out of ram, you don't "use" that much more CPU. When the cpu is waiting for things to page in and out of memory, it just sits there in wait state. It will scale down it's clock.
I think apple knows what they are doing, and they probably gave this a lot of thought.

Edited 2013-09-11 19:36 UTC

Reply Parent Score: 1