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The best way to help iPhone battery life is stop shipping 1500/1600 mAh batteries in a smartphone.
 
How much of a performance bottleneck does having a MiniSD incur on Android systems?

LPDDR4 is RAM. Android devices also use RAM. Samsung is actually an industry leader in RAM. They are already producing LPDDR4. They are probably not giving it to Apple though.

MiniSD is used in addition to NAND flash memory. Android devices use NAND flash memory (just like iDevices) and then some of them (Samsung in particular) allow the use of flash memory cards.
 
Several architectural refinements enable LPDDR4 to maintain the same power consumption profile as LPDDR3 while doubling its bandwidth.

- from the original article

So, same power requirement, but with faster throughput.

Battery won't get smaller in this case, unless they throttle things. It just won't need to get bigger.
 
So, same power requirement, but with faster throughput.

Battery won't get smaller in this case, unless they throttle things. It just won't need to get bigger.

Isn't that just PR speak? They love to tell us how the new product is better by comparing it to the old one in relative terms. That doesn't mean 2x the speed is the recommended or optimal point for operation. You could presumably be faster and use less power by putting it somewhere in the middle.
 
The best way to help iPhone battery life is stop shipping 1500/1600 mAh batteries in a smartphone.

Best? Maybe. Easiest? Certainly. Designing hardware and software to be more efficient is the elegant solution. Apple could increase the capacity of their iPhone batteries but there's something to be said for trying to do more with the same or less.

To use a car analogy, sometimes it's better to make a car more fuel efficient rather than just sticking in a larger gas tank.
 
LPDDR4 is RAM. Android devices also use RAM. Samsung is actually an industry leader in RAM. They are already producing LPDDR4. They are probably not giving it to Apple though.

MiniSD is used in addition to NAND flash memory. Android devices use NAND flash memory (just like iDevices) and then some of them (Samsung in particular) allow the use of flash memory cards.

Ah, thought it was a Flash memory.

Although the SD uses NAND, isn't the SD interface a bottleneck versus reading the built in NAND? What is the impact status in performance?
 
To put it simply, dynamic power consumption (power you use by operating as opposed to just sitting idle) is a function of how often you transfer data, how hard it is to drive the cells needed for that transfer and how much potential you need to complete that operation in the given time. It's roughly analogous to a car by saying I want to drive this fast, my car has this much drag, and my engine is this big.

Thank you for simplifying :)

I guess my question really boils down to this: "I will get "x" more juice from my battery due to this switch."

For the user whose phone can last 12 hours before needing a charge:

1 minute?

1 hour?

1 day?
 
Thank you for simplifying :)

I guess my question really boils down to this: "I will get "x" more juice from my battery due to this switch."

For the user whose phone can last 12 hours before needing a charge:

1 minute?

1 hour?

1 day?

Minutes of savings. Sorry.
 
Will a thinner iPhone affect my camera?!?

What I mean is if you make the other parts of the phone more energy efficient then you can keep the "power" the same yet last longer.

Yes, but my one fear is that they'll make it more efficient and remove some of the battery and not let it last longer. My other fear is that they'll make it more efficient and thinner and it'll affect the camera. Just having more surface area to spread out the battery on an larger iPhone (and more a efficient display) could mess with the thickness and the camera too.

Gary
 
iPhone battery size has increased with nearly every iteration of the phone. If they do indeed got a 4.7" or larger device, you can bet that the battery will see a significant jump.

Customers don't care about battery size, they care about battery life.
 
To put it simply, dynamic power consumption (power you use by operating as opposed to just sitting idle) is a function of how often you transfer data, how hard it is to drive the cells needed for that transfer and how much potential you need to complete that operation in the given time. It's roughly analogous to a car by saying I want to drive this fast, my car has this much drag, and my engine is this big.

Dammit Jenkins! Why didn't you just say this first?:confused: The quote below caused me considerable head-achy type pain in my thought machine.

"Yes, it's a small part of the equation. Using the equation P = fCV, say you run at 2 GHz, each cell is about 10 pF capacitance (times 64 for a 64 bit interface), at 1.1V, you're around 1.32 W (that's a toggle on every data bit every cycle). This doesn't take into account static RAM power dissipation, but it's also worst case since data bit toggle rates won't be at 1 (ratio cycles the data bit toggles to total clock periods).

However, the key trade is faster RAM for a given power dissipation (or the same speed RAM for less power dissipation). Intense GPU demand also has intense RAM demands."
- courtesy of chrmjenkins

Seriously though, great explanation both.:cool:
 
Really, improving that 1GB RAM should be a priority. Short term everything runs butter smooth, but on the long term (specially for tablets) it will be nasty. It should be "the next big thing" in hardware now that processors are getting desktop-like.
 
There's a slight problem. Intel's first processors supporting DDR4 aren't going to be released until late 2014, and only in the high-end socket 2011. Broadwell doesn't support DDR4. So, this won't impact Macs very quickly. In terms of iPads and iPhones, the new A8 is unlikely to have a DDR4 controller, especially when the production of DDR4 is JUST starting to ramp up. There isn't any supply. Sounds nice in theory, but isn't in any way possible until next year.

++ Surprised nobody pointed this out early.

Memory controllers are built into Intel CPUs, you can't just buy LPDDR4/DDR4 memories and put it in.

Broadwell's been delayed to '15 (unless Intel pulls a miracle), so there might be a chance Intel did this to enable support for DDR4 but if not, then we have to wait for Skylake in '16 for this LPDDR4/DDR4 support.

I doubt Apple will do this because the supply won't be enough in time to handle the millions of iOS devices that are going to be sold quickly.

I'd suspect LPDDR4 in A9 in '15 and Macs in '16 (unless Intel does a miracle again).
 
For technology in general. Battery advancements have lagged big time compared to other components.

It's amazing how far they've come with things like MacBooks, though, which have amazing battery life now compared to just a few years ago.

iPads have pretty amazing battery life, too. If only iPhones could catch up. But I guess when you consider that iPhones are packing almost the same hardware (except the display) into a much smaller package, it's hardly surprising.
 
How about this crazy idea: how about we gain battery life because Apple takes a step back from its obsession on making everything thinner? How about I can buy a phone that is 9 mm thick instead of seven and has twice the battery life? How about that?
 
There's a slight problem. Intel's first processors supporting DDR4 aren't going to be released until late 2014, and only in the high-end socket 2011. Broadwell doesn't support DDR4. So, this won't impact Macs very quickly.

While this was originally the rumor, this is looking a lot less true than it did 6 months ago.
 
Anything that can improve battery life is a good thing. In my opinion the battery is one of the weakest aspects of the current iPhone lineup!

My thoughts exactly. This has always been an issue with the iPhone and it has been bothersome that they haven't just stuck in a bigger battery which would be great. They've improve the MBA, MBP, iPad Air and iPad mini.... it's time for the iPhone to get a major boost.
 
While this was originally the rumor, this is looking a lot less true than it did 6 months ago.

Official roadmaps, etc. confirm only Skylake, but not Broadwell, will see DDR4 support. It's not a rumor. Intel is limiting DDR4 support to enthusiast and server (socket 2011), where people are willing to cough up the $$$. The Mac Pro may be able to offer DDR4 support at the very end of the year, but no notebook processors, etc. will have built in support until next year at the earliest. Again, the DDR4 supply is simply not there, regardless. They won't have enough availability to put it in phones and tablets to the tune of 10's of millions of products per quarter....
 
What I mean is if you make the other parts of the phone more energy efficient then you can keep the "power" the same yet last longer.

I understand that. But my fear is IF Apple thinks they are at their sweet spot with the number of hours that the battery lasts, instead of letting it last longer (in your scenario) they'll remove some battery to make it thinner/lighter. Then IF they do that (both the hypotheticals) the thinner phone will impact the lens that make up the camera.

I'd rather they leave the battery to last longer (or even add some battery to make it thicker and give me an even better camera lens!).

Gary
 
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