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[MacRumors] An A5 Powered iPhone Will Have Much Faster Graphics Performance - Page 2

post #11 of 91
I'd say one more generation of phones and handhelds are pointless.
post #12 of 91
Quote:
Originally Posted by steelbom View Post
Actually the A5 should improve the drain on power from the CPU due to it being more efficient. I don't think they used better batteries or a better screen. Although I've heard they are considering more expensive and lighter batteries for the iPad 3.
I stand corrected thats what happens with all these rumors xD a year or so down the line + it all gets blurred together xD

The A5 may be more efficient but its is considerably more powerful, I doubt the power reduction from the efficiency lines up with or exceeds the extra drain from performance.

Unless of course they just clock the A5 down to A4 performance, then there'd be a considerable battery life increase.
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post #13 of 91
Still happy with my 3GS...
It's good to see things progressing but how much processor power does a phone need?
Whilst I do play the odd game on my iPhone it's not the easiest interface for gaming.

For that I mainly use my ipad1 playing plants v zombies. My psp's gathering dust and the 3DS impulse buy is loosing it's luster.
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post #14 of 91
That picture of the battery says area. Isn't the iPad 2 thinner? So.....
post #15 of 91
Thread Starter 
Quote:
Originally Posted by Yuki457 View Post
I stand corrected thats what happens with all these rumors xD a year or so down the line + it all gets blurred together xD

The A5 may be more efficient but its is considerably more powerful, I doubt the power reduction from the efficiency lines up with or exceeds the extra drain from performance.

Unless of course they just clock the A5 down to A4 performance, then there'd be a considerable battery life increase.
The A4 has a single-core ARM8 Cortex 800MHz CPU whilst the A5 has a dual-core ARM9 Cortex and will be at 800MHz or so. The dual-core part cancels itself out a bit because it'll finish tasks about twice as quickly, and it also has a more efficient architecture. That's what I think anyway, I may be wrong.
Quote:
Originally Posted by 0Amadeus0 View Post
Still happy with my 3GS...
It's good to see things progressing but how much processor power does a phone need?
Whilst I do play the odd game on my iPhone it's not the easiest interface for gaming.

For that I mainly use my ipad1 playing plants v zombies. My psp's gathering dust and the 3DS impulse buy is loosing it's luster.
The more powerful the processor the more powerful apps/games can be developed for it and it also allows for a very snappy experience. The same goes for the GPUs -- at least game wise.
Quote:
Originally Posted by Psykhotic View Post
That picture of the battery says area. Isn't the iPad 2 thinner? So.....
It's quite possible it has a thinner battery, would be good to know for sure though.

EDIT: That seems to be the case: the iPad 2 battery is only a fraction larger. And in that case, the SGX543MP2 in the iPhone 5 should be possible.
Edited by steelbom - 10/3/11 at 4:22am
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post #16 of 91
thats a pretty impressive gain, is this thanks to apple or samsung?
who did the R&D?

looked up some info on the chip, wow, its going to cost 75% more in the initial stages or production.
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post #17 of 91
Thread Starter 
Quote:
Originally Posted by t00sl0w View Post
thats a pretty impressive gain, is this thanks to apple or samsung?
who did the R&D?

looked up some info on the chip, wow, its going to cost 75% more in the initial stages or production.
That would be Apple I believe.

What is going to cost more? The A5?
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post #18 of 91
Quote:
The A5 contains a dual-core ARM Cortex-A9 CPU[3] with NEON SIMD accelerator and a dual core PowerVR SGX543MP2 GPU.[
Comparing a single core GPU vs a dual core ofc it's going to be double performance . "Everyday" performance is probably going to be the same as the SII. The iPhone 5 will probably be eclipsed by the SIII when it arrives early next year.
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post #19 of 91
Quote:
Originally Posted by steelbom View Post
The iPad 2's battery life actually improved with the A5, so I don't see why it isn't possible for the iPhone 5's battery life to stay very similar, if not improve as well.
So, you have a graphics processor that is eight times as powerful and is manufactured using a very similar (if not the same) manufacturing process, and you expect it to eat the same power?

No way in earth that is possible.

Unless they've adjusted OR suppressed something on the die.

Plus an iPad is not an iPhone. The iPhone can't house a battery with the surface of your hand.


ARM9 isn't that more efficient than ARM8. It has a wider instruction set and thus is more powerful, and a bit more efficient aswell. But don't expect half the power consumption. it will for sure eat more power than its predecessor did.

What sounds more plausible is that Samsung implemented a very efficient performance throttle, and thus they can get the chip to eat very little when idling.



Quote:
Originally Posted by steelbom View Post
That would be Apple I believe.

What is going to cost more? The A5?

Samsung is the chip manufacturer... That is why Galaxies are released later and pack much higher performance. Because they built the chip, and they tweak it for the Galaxies to make them perform better


The A5 is going to be much more expensive than the A4, of course (+75% as t00sl0w said), that in return is going to skyrocket the iP5's price to even higher marks than the iP4 reached.


Expect $800 prices. Maybe higher. Unless they get their hands on the A5s when Samsung has refined them and can build them at a low cost.
Edited by Artikbot - 10/3/11 at 6:10am
   
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post #20 of 91
Thread Starter 
Quote:
Originally Posted by Novakanedj View Post
Comparing a single core GPU vs a dual core ofc it's going to be double performance . "Everyday" performance is probably going to be the same as the SII. The iPhone 5 will probably be eclipsed by the SIII when it arrives early next year.
What? The point is how powerful the SGX543MP2 is compared to the competition. Also, the Mali-400 in the S2 is a quad-core GPU I believe.
Quote:
Originally Posted by Artikbot View Post
So, you have a graphics processor that is eight times as powerful and is manufactured using a very similar (if not the same) manufacturing process, and you expect it to eat the same power?

No way in earth that is possible.

Unless they've adjusted OR suppressed something on the die.
No, what I said was the SGX543 shouldn't use more power than the SGX535. The SGX543MP2 would, although I don't know how much and most likely only when gaming, which would be when the second core would be required.
Quote:
Plus an iPad is not an iPhone. The iPhone can't house a battery with the surface of your hand.
Why would the iPhone 5's battery life become shorter with the A5 when the iPad 2's battery life became longer? That's showing better power efficiency, capacity is irrelevant.
Quote:
ARM9 isn't that more efficient than ARM8. It has a wider instruction set and thus is more powerful, and a bit more efficient aswell. But don't expect half the power consumption. it will for sure eat more power than its predecessor did.
I was most certainly not suggesting half the power consumption, however it is more efficient and it does have less power consumption. A single core Cortex A9 will use less power and perform better than a single core Cortex A8. Take into account that many tasks will be finished in half the time, you won't find the dual-core A9 using more energy than it was before. Not to mention any improvements Apple makes to the chip.
Quote:
What sounds more plausible is that Samsung implemented a very efficient performance throttle, and thus they can get the chip to eat very little when idling.

Samsung is the chip manufacturer... That is why Galaxies are released later and pack much higher performance. Because they built the chip, and they tweak it for the Galaxies to make them perform better
The A4 and A5 are designed by Apple and manufactured by Samsung. They're both heavily optimized for use with iOS by Apple, not Samsung. That's why Apple acquired Intrinsity.
Quote:
The A5 is going to be much more expensive than the A4, of course (+75% as t00sl0w said), that in return is going to skyrocket the iP5's price to even higher marks than the iP4 reached.

Expect $800 prices. Maybe higher. Unless they get their hands on the A5s when Samsung has refined them and can build them at a low cost.
I doubt it. It's very likely we're going to see iPhone's and iPod touches at the same price point as before, just as we did with the iPad 2.
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