The battery life in this should be very good. Definitely more than 5 hours, probably more like 10 if you turn the backlight down a few notches. Dell Streak is 5" and 1500mAh battery. iPad is in the 6000-7000 mAh range and 10". This is 7" and 4000mAh. Internals are roughly the same in all three devices in terms of power draw, so the backlight and screen will be the deciding factor.
270% larger battery is nice, not sure how the rest of the tech will scale...175% larger screen + 1.2 ghz processor might eat the battery more than 2x as fast. I think battery ratings take a bit more of a hit on 3G internet surfing than talk time, while using wi-fi will make it fall inbetween the 2G/3G talk time numbers.
This just random mulling from a simpleton, I'm sure someone can guesstimate this better than I and just about anyone can (and probaly should) totally dismiss everything I just wrote.
@CommentsTroll "iPad is in the 6000-7000 mAh range and 10". This is 7" and 4000mAh. Internals are roughly the same in all three devices in terms of power draw, so the backlight and screen will be the deciding factor."
The iPad, IMHO, will almost surely have a more efficient processor, question is how much more efficient. But there is something more important you are missing: power draw. IPS > AMOLED > Super AMOLED. You've already noted the bigger size, which is definitely important, but I think it's more important to rate this device against the Galaxy S as it's the closest thing we have to the internals AND the externals. The big question is, are screens perfectly correlated for power consumption/size...do they get more/less efficient from 4" to 7"? If anyone can answer that, if it's even possible, we could have a good idea on the battery rating.
(SUPER) AMOLED power consumption depends for a large part on the displayed image, unlike LCD where power consumption is constant, a dark image will consume much less than a white image (Dark about 40% of a LCD, full white about 200% of a LCD)
@rj7855 I'm under the impression that Apple has probably, though not definitely, underclocked the A4. In addition to that, they have defeated some of the functionality from the A4 that they don't use. Lastly, this seems to be overclocked, at least relative to what we've seen from every Samsung processor thus far (perhaps they've done other engineering to get it upto 1.2ghz though).
Yes, I have read that the video content negates the disadvantage of LCD, however, you said Super AMOLED. Are you saying that Super AMOLED is worse than AMOLED at energy conservation in video? Have the two actually been put head to head, bc AFAIK there hasn't been extensive testing on the Super AMOLEDs from 3rd parties. Though it's quite likely I just haven't read it, if that's the case I'd love to see a link since it'll be powering my next device and I'd like to see what else they have to say about it that is unbeknownst to me. If you are using AMOLED stats you'd still need to take the 20% power savings into account...equalizing it across all parts might be correct, e.g. 20% more efficient would make the black 32% and the whites 160%....please clarify, SAMOLED is sexy and I want more info.
Again, I don't think I'm coming from a place of authority on the subject. Part of what I'm doing is just speculating, which I made clear, and putting together what information I do have.
@rj7855 .. Samsung didn't co-develop the A4. They manufactured it. It's like saying that Foxconn co-developed the iPhone, XBox 360, Wii, DS and Kindle.
I would say Samsung will overclock, I´m sure it will run within it´s designed spec´s. Underclocking is only needed if the thermal design can´t cope with the heat generated at full clock/load. For battery conservation it´s not needed as these processors can adjust their frequency depending on the workload (eg. my Nexus throttles down to 245Mhz when idle)
Comparing power consumption differences between LCD and AMOLED is a real difficult one (much like Plasma vs LCD) it all depends on the content being displayed. I think on average the AMOLED wins...
@rj7855 Thanks for the response, and now I will delve into an area I know less about, but here she goes...
"For battery conservation it´s not needed as these processors can adjust their frequency depending on the workload "
I see your point when the CPU isn't being utilized, but isn't this not applicable when running @ 100% load? So, to accomplish a task (or tasks in iOS4) that would require 100% load on a stock chip, if you underclock it it could have potential power savings?... even though it'd have to run for longer to complete the tasks.
Also, if you think Samsung wont underclock then do you think this is a different SoC than what they've used in the Wave then? Or was that underclocked? Thxagain.
Limiting the max frequency could provide some power savings in the case that the processor also needs less voltage on that frequency, however that would only be true on the moment the screen is OFF. (in case the screen is on the longer time needed to complete the task at a lower frequency will mean that the display will need to be on longer as well, in mobile devices the screen is the biggest energy consumer so any power savings would be more than nullified by the display)
The wave could use a underclocked processor (maybe because of heat dissipation constrains) or it´s just a lesser binned processor; For example the Acer Liquid uses a Snapdragon clocked at 768Mhz and MOST liquid´s can´t reach 1Ghz stable. These processors are being sold cheaper by the manufacturer, basically they are rejects of the 1Ghz snapdragon. The opposite can occur as well especially after manufacturing of a processor matures, some processors are better and can reach higher frequencies without additional voltage and are sold at a premium.
@rj7855 A very good point on the screen staying on, but it makes me wonder why some OEMs desire underclocked processors, as consumers seem to gravitate and pay more for higher specs anyways.
Cost reduction (lesser binned cpu´s are cheaper and you can get away with slower/cheaper components like RAM chips) and thermal design constraints, underclocking may also help to get their "measured" maximum battery life (like cell standby, music playback) which are typically measured with screen off. In some cases it´s also done to simplify some timing issues the rest of the system (ram timings, display refresh rate, radio..for example In the source code of the Milestone and Droid there are different frequencies specified because of the Droid being CDMA and the Milestone GSM) This is much like the old days with PAL home computers slightly under-clocked in comparison to the NTSC version so the color signal was easier to synchronize.
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How long would be the battery life for 4000 mAH?
5 hours? that would be sucks
At least 15 hours, then it is superb!
@ewlung
The battery life in this should be very good. Definitely more than 5 hours, probably more like 10 if you turn the backlight down a few notches. Dell Streak is 5" and 1500mAh battery. iPad is in the 6000-7000 mAh range and 10". This is 7" and 4000mAh. Internals are roughly the same in all three devices in terms of power draw, so the backlight and screen will be the deciding factor.
@ewlung the specs Samsung listed for the 1500 mAH Galaxy S phone with Super AMOLED display:
Li-ion 1500mAh Talk time: 2G/803 min, 3G/393 min. Standby time: 2G/750 hrs, 3G/576 hrs.
270% larger battery is nice, not sure how the rest of the tech will scale...175% larger screen + 1.2 ghz processor might eat the battery more than 2x as fast. I think battery ratings take a bit more of a hit on 3G internet surfing than talk time, while using wi-fi will make it fall inbetween the 2G/3G talk time numbers.
This just random mulling from a simpleton, I'm sure someone can guesstimate this better than I and just about anyone can (and probaly should) totally dismiss everything I just wrote.
@juanvaldez *probably
@CommentsTroll "iPad is in the 6000-7000 mAh range and 10". This is 7" and 4000mAh. Internals are roughly the same in all three devices in terms of power draw, so the backlight and screen will be the deciding factor."
The iPad, IMHO, will almost surely have a more efficient processor, question is how much more efficient. But there is something more important you are missing: power draw. IPS > AMOLED > Super AMOLED. You've already noted the bigger size, which is definitely important, but I think it's more important to rate this device against the Galaxy S as it's the closest thing we have to the internals AND the externals. The big question is, are screens perfectly correlated for power consumption/size...do they get more/less efficient from 4" to 7"? If anyone can answer that, if it's even possible, we could have a good idea on the battery rating.
@juanvaldez
(SUPER) AMOLED power consumption depends for a large part on the displayed image, unlike LCD where power consumption is constant, a dark image will consume much less than a white image (Dark about 40% of a LCD, full white about 200% of a LCD)
Samsung co-developed the A4 processor (see http://news.cnet.com/8301-13924_3-20007162-64.html ) so it would be logical it the energy footprint of the processor is comparable to iPad´s
@rj7855 I'm under the impression that Apple has probably, though not definitely, underclocked the A4. In addition to that, they have defeated some of the functionality from the A4 that they don't use. Lastly, this seems to be overclocked, at least relative to what we've seen from every Samsung processor thus far (perhaps they've done other engineering to get it upto 1.2ghz though).
Yes, I have read that the video content negates the disadvantage of LCD, however, you said Super AMOLED. Are you saying that Super AMOLED is worse than AMOLED at energy conservation in video? Have the two actually been put head to head, bc AFAIK there hasn't been extensive testing on the Super AMOLEDs from 3rd parties. Though it's quite likely I just haven't read it, if that's the case I'd love to see a link since it'll be powering my next device and I'd like to see what else they have to say about it that is unbeknownst to me. If you are using AMOLED stats you'd still need to take the 20% power savings into account...equalizing it across all parts might be correct, e.g. 20% more efficient would make the black 32% and the whites 160%....please clarify, SAMOLED is sexy and I want more info.
Again, I don't think I'm coming from a place of authority on the subject. Part of what I'm doing is just speculating, which I made clear, and putting together what information I do have.
@rj7855 .. Samsung didn't co-develop the A4. They manufactured it. It's like saying that Foxconn co-developed the iPhone, XBox 360, Wii, DS and Kindle.
@taligent
yes they did.... before Apple got involved
"Intrinsity was the company behind the (previously dubbed) Cortex A8 chip, and that Intrinsity worked with Samsung to develop and manufacture it."
http://www.engadget.com/2010/06/08/apple-ipad-and-samsung-wave-share-a-brain/
@juanvaldez
I would say Samsung will overclock, I´m sure it will run within it´s designed spec´s. Underclocking is only needed if the thermal design can´t cope with the heat generated at full clock/load. For battery conservation it´s not needed as these processors can adjust their frequency depending on the workload (eg. my Nexus throttles down to 245Mhz when idle)
Comparing power consumption differences between LCD and AMOLED is a real difficult one (much like Plasma vs LCD) it all depends on the content being displayed. I think on average the AMOLED wins...
@rj7855
I wanted to write "I wouldn´t say Samsung will overclock...."
@rj7855 Thanks for the response, and now I will delve into an area I know less about, but here she goes...
"For battery conservation it´s not needed as these processors can adjust their frequency depending on the workload "
I see your point when the CPU isn't being utilized, but isn't this not applicable when running @ 100% load? So, to accomplish a task (or tasks in iOS4) that would require 100% load on a stock chip, if you underclock it it could have potential power savings?... even though it'd have to run for longer to complete the tasks.
Also, if you think Samsung wont underclock then do you think this is a different SoC than what they've used in the Wave then? Or was that underclocked? Thxagain.
@juanvaldez
Limiting the max frequency could provide some power savings in the case that the processor also needs less voltage on that frequency, however that would only be true on the moment the screen is OFF. (in case the screen is on the longer time needed to complete the task at a lower frequency will mean that the display will need to be on longer as well, in mobile devices the screen is the biggest energy consumer so any power savings would be more than nullified by the display)
The wave could use a underclocked processor (maybe because of heat dissipation constrains) or it´s just a lesser binned processor; For example the Acer Liquid uses a Snapdragon clocked at 768Mhz and MOST liquid´s can´t reach 1Ghz stable. These processors are being sold cheaper by the manufacturer, basically they are rejects of the 1Ghz snapdragon. The opposite can occur as well especially after manufacturing of a processor matures, some processors are better and can reach higher frequencies without additional voltage and are sold at a premium.
@rj7855 A very good point on the screen staying on, but it makes me wonder why some OEMs desire underclocked processors, as consumers seem to gravitate and pay more for higher specs anyways.
@juanvaldez
Cost reduction (lesser binned cpu´s are cheaper and you can get away with slower/cheaper components like RAM chips) and thermal design constraints, underclocking may also help to get their "measured" maximum battery life (like cell standby, music playback) which are typically measured with screen off. In some cases it´s also done to simplify some timing issues the rest of the system (ram timings, display refresh rate, radio..for example In the source code of the Milestone and Droid there are different frequencies specified because of the Droid being CDMA and the Milestone GSM) This is much like the old days with PAL home computers slightly under-clocked in comparison to the NTSC version so the color signal was easier to synchronize.