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I want to know that dual core will save the battery or its more power hungry than one core in android phone?
If both cores are working, they will both use power.
Some phones have apps available which will turn all cores off, except for 1. Then the device will use less battery.
-- Sent from my TouchPad using Communities
Thanks
post-mortem said:
If both cores are working, they will both use power.
Some phones have apps available which will turn all cores off, except for 1. Then the device will use less battery.
-- Sent from my TouchPad using Communities
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Click to collapse
Thanks for your reply, I will buy a dual core phone but with good battery backup.
smondal29 said:
I want to know that dual core will save the battery or its more power hungry than one core in android phone?
Click to expand...
Click to collapse
It really depends on its architecture. If it uses a newer architecture, in general, it will consume less power and perform better than the processors with old architecture.
If you compare processor with the same architecture but one is running on one core while the other is on two core, then its obvious that the one with the dual core proc would need more power
A sample of case study that you want to look at if you want to get a better grip of it: comparison between htc one x/galaxy s3(quadcore but older architecture) vs htc one s(s4) (dual core but newer architecture)
I love my single-core phone, but the battery still doesn't last very long. I don't know if a dual core would be much worse, it also depends on the battery capacity.
recently i have bought yu yureka bu micromax
- 1.5.GHz Snapdragon 615 MSM8939 Octa Core Processor / Adreno 405 GPU @ 550 MHz
- 2 GB RAM
- 5.5 Inch HD IPS Touchscreen Display
- Dual SIM Support
- 13MP Primary Camera With LED Flash
- 5 MP Front Camera
- 4G LTE
- 2500 MAh Battery.
- Customizable Cyanogen 11 OS
the phone been heating alot.. the CPU temperature is normally 45C and it raises as we use.. when gaming it goes between 60-65 C and when i run benchmark tools or play heavy games over an hour the temperature goes above 70C the top i observed is 77C..
isnt a processor supposed to shut off at 70C? as for safety reasons till it cools down?? how much this snapdragon 615 processor can get the most? will it burn or burn other internals?? please some1 clarify my doubts! i even noticed many people are facing the same kind of issues with samsung and moto phones which runs on octa core processors.. is it a hardware related issue or a software issue???
arulprabin said:
recently i have bought yu yureka bu micromax
- 1.5.GHz Snapdragon 615 MSM8939 Octa Core Processor / Adreno 405 GPU @ 550 MHz
- 2 GB RAM
- 5.5 Inch HD IPS Touchscreen Display
- Dual SIM Support
- 13MP Primary Camera With LED Flash
- 5 MP Front Camera
- 4G LTE
- 2500 MAh Battery.
- Customizable Cyanogen 11 OS
the phone been heating alot.. the CPU temperature is normally 45C and it raises as we use.. when gaming it goes between 60-65 C and when i run benchmark tools or play heavy games over an hour the temperature goes above 70C the top i observed is 77C..
isnt a processor supposed to shut off at 70C? as for safety reasons till it cools down?? how much this snapdragon 615 processor can get the most? will it burn or burn other internals?? please some1 clarify my doubts! i even noticed many people are facing the same kind of issues with samsung and moto phones which runs on octa core processors.. is it a hardware related issue or a software issue???
Click to expand...
Click to collapse
No It will not burn any material. It is not the PC Processor, but it seems that your device heats a lot, may be it is a manufacturing defect. Try asking others with the same phone. And don't overheat your phone, dont play games for hours and hours
Hit thanks if helped
Sushant Rohan said:
No It will not burn any material. It is not the PC Processor, but it seems that your device heats a lot, may be it is a manufacturing defect. Try asking others with the same phone. And don't overheat your phone, dont play games for hours and hours
Hit thanks if helped
Click to expand...
Click to collapse
i dont play games that long.. with this device its hard to play for more than an hour.. 90% of the ppl having this device facing the same issue but most of them seems to be not caring.. some even said the snapdragon615 can withstand up to 100C is that true??
the customer care ppl said...
We have identified the issues with device.It is essentially a compatibility issue with Cyanogen. Our Tech team is working on the issue.
I would request you to please give us 2-3 working days to close this issues.
We sincerely apologise for the inconvenience caused to you. We are working closely with the tech team to get a resolution for this asap.
arulprabin said:
i dont play games that long.. with this device its hard to play for more than an hour.. 90% of the ppl having this device facing the same issue but most of them seems to be not caring.. some even said the snapdragon615 can withstand up to 100C is that true??
the customer care ppl said...
We have identified the issues with device.It is essentially a compatibility issue with Cyanogen. Our Tech team is working on the issue.
I would request you to please give us 2-3 working days to close this issues.
We sincerely apologise for the inconvenience caused to you. We are working closely with the tech team to get a resolution for this asap.
Click to expand...
Click to collapse
I can't find any temperature values on the qualcomm website. Just write a email to qualcomm for first hand iformations Phone's kernel works with thermal throttling, means depending on the actual cpu temperature the cpu clock is lowered to protect the cpu from overheating. If your hardware works as it should, you can't overheat actual processors by using I suppose. If you can find a custom kernel you probably can set own values for thermal throttling. In any case you should try a kernel tool e.g. Trickster Mod or Performance Control for setting up the cpu. If you think its getting too hot, just deactivate some cores or lower the cpu clock, your phone will still be fast enough for all your applications.
Edit: which customer care people told you about the issue?
arulprabin said:
i dont play games that long.. with this device its hard to play for more than an hour.. 90% of the ppl having this device facing the same issue but most of them seems to be not caring.. some even said the snapdragon615 can withstand up to 100C is that true??
the customer care ppl said...
We have identified the issues with device.It is essentially a compatibility issue with Cyanogen. Our Tech team is working on the issue.
I would request you to please give us 2-3 working days to close this issues.
We sincerely apologise for the inconvenience caused to you. We are working closely with the tech team to get a resolution for this asap.
Click to expand...
Click to collapse
LS.xD said:
I can't find any temperature values on the qualcomm website. Just write a email to qualcomm for first hand iformations Phone's kernel works with thermal throttling, means depending on the actual cpu temperature the cpu clock is lowered to protect the cpu from overheating. If your hardware works as it should, you can't overheat actual processors by using I suppose. If you can find a custom kernel you probably can set own values for thermal throttling. In any case you should try a kernel tool e.g. Trickster Mod or Performance Control for setting up the cpu. If you think its getting too hot, just deactivate some cores or lower the cpu clock, your phone will still be fast enough for all your applications.
Edit: which customer care people told you about the issue?
Click to expand...
Click to collapse
im unable to find the direct mailid of qualcomm.. can u give me plz..
its the yu customer care for the phone.. they never attend my calls so i mailed after 3 failures today they replied
arulprabin said:
im unable to find the direct mailid of qualcomm.. can u give me plz..
its the yu customer care for the phone.. they never attend my calls so i mailed after 3 failures today they replied
Click to expand...
Click to collapse
Qualcomm website is not reachable for me at the moment
thanks.. i'll try other sources
arulprabin said:
recently i have bought yu yureka bu micromax
- 1.5.GHz Snapdragon 615 MSM8939 Octa Core Processor / Adreno 405 GPU @ 550 MHz
- 2 GB RAM
- 5.5 Inch HD IPS Touchscreen Display
- Dual SIM Support
- 13MP Primary Camera With LED Flash
- 5 MP Front Camera
- 4G LTE
- 2500 MAh Battery.
- Customizable Cyanogen 11 OS
the phone been heating alot.. the CPU temperature is normally 45C and it raises as we use.. when gaming it goes between 60-65 C and when i run benchmark tools or play heavy games over an hour the temperature goes above 70C the top i observed is 77C..
isnt a processor supposed to shut off at 70C? as for safety reasons till it cools down?? how much this snapdragon 615 processor can get the most? will it burn or burn other internals?? please some1 clarify my doubts! i even noticed many people are facing the same kind of issues with samsung and moto phones which runs on octa core processors.. is it a hardware related issue or a software issue???
Click to expand...
Click to collapse
70-80 Degrees isn't a "Worry" Moment, It's actually quite normal for a Octa core to reach that high what do you expect? Since a phone doesn't have a Fan or something like a PC, so it relies on something else which needs longer time to cooldown.
My Nexus 5 using Quad Core reaches almost the same Value (65-70).
Remove the case if you have one since a case will have your phone increase in temperature too.
thanks.. i already hve done it.. i bought a flip cover which i used only for an hour... i worry only when it exceeds 70C.. i can feel the heat near the cam.. it gewts hard even to hold it. i heard meadiatek processors doesnt heat only qualcomm processors does. is it true??
is there any other phone with the same kinda heating issue? like over 70C still survive??
arulprabin said:
im unable to find the direct mailid of qualcomm.. can u give me plz..
its the yu customer care for the phone.. they never attend my calls so i mailed after 3 failures today they replied
Click to expand...
Click to collapse
LS.xD said:
Qualcomm website is not reachable for me at the moment
Click to expand...
Click to collapse
(858) 587-1121
They've got no email addresses only office locations https://www.qualcomm.com/company/facilities/offices
then i guess only the experianced/developers in this forums can help me.. all i wanna know that if its safe to have such high temperatures ( 65 when gaming and 75+ when running benchmarking-stress test) is it ok with this qualcomm anapdragon 615 processor... some said these processors can withstand upto 100c and 90c is the cutoff temprature unlike the old processors.. can some expert who is experianced with developing any apps for any quad/octa core processor out there please help me. i just want this much info only
I bought the phone today, but I think it's way slower than it should be. I know that the LG G Flex 2 has a Qualcomm Snapdragon 810 with 2.0 GHz quad core and a 1.5 Ghz quad core (octa core) CPU, but after i have runned a couple of benchmark tests in Antutu, I got a score between 35000 to 40000! That's way slower than Samsung Galaxy S5's Snapdragon 801! I thought that it whould get a score over 50000 When I see info about my CPU in Antutu after bemchmark test, it stands that the first four cores has a frequency of 1.5 GHz, while the other four cores has a frequency of 0.9 GHz (two of them are "sleeping" a lot)! Is it possible to fix that? I hope so. I've got the 16GB version with 2GB of DDR4 RAM. The device is upgraded to 5.1.1 Lollipop. (Sorry for bad English, I'm from Norway)
ali_mohamad said:
I bought the phone today, but I think it's way slower than it should be. I know that the LG G Flex 2 has a Qualcomm Snapdragon 810 with 2.0 GHz quad core and a 1.5 Ghz quad core (octa core) CPU, but after i have runned a couple of benchmark tests in Antutu, I got a score between 35000 to 40000! That's way slower than Samsung Galaxy S5's Snapdragon 801! I thought that it whould get a score over 50000 When I see info about my CPU in Antutu after bemchmark test, it stands that the first four cores has a frequency of 1.5 GHz, while the other four cores has a frequency of 0.9 GHz (two of them are "sleeping" a lot)! Is it possible to fix that? I hope so. I've got the 16GB version with 2GB of DDR4 RAM. The device is upgraded to 5.1.1 Lollipop. (Sorry for bad English, I'm from Norway)
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Click to collapse
i got mine at Tuesday. I can pretty much say i never experienced a lag before even tho i had many apps in the recent apps tab and also i was playing high quality games and it got a little bit hot but still it was working flawless, very very fast. What i did after i updated to 5.1.1 i did a factory reset, then i downloaded only the apps that are indeed from lg apps such as calculator downloads quickremote (because most of them are useless and slow down the phone) and then i downloaded a custom launcher and greenify. Also use the google keyboard from google play store. better to use google's apps rather than lg's. Since then i never experianced any lag before. try it out. If u need more help tell me
That is really low. Go into settings and into battery saver and check if you maybe turned it on, and also see if you checked option to optimize battery in games.
Try restarting the phone and run antutu again, after a couple of minutes..
Sent from my LG-H955 using XDA Free mobile app
You are from a cold country so it should help. First try let rest the phone and launch antutu when it's at room temperature.
Then try with an ice pack on the back. It can be ice pack for injuries (kind of thick gel in plastic bag) or for cool box or ice chest, whatever you call it. But don't use it too long, you may have condensation inside the phone and it will trigger the humidity sticker (for your warranty).
Don't launch antutu after a reboot, as it's warm after a reboot. Or reboot and let it cool down first.
I am looking to buy a tablet I come across 2 tablets which have intrigued me the xperia z3 compact and the nvidia shield k1. I liked them both for the specs and low price. The tablet will be used for surfing the internet, youtube, Facebook, games, watching movies things like that so I was wondering if someone who has both or has had experience can recommend me which one is better or if there is another tablet that is better suited for me.
lilzad said:
I am looking to buy a tablet I come across 2 tablets which have intrigued me the xperia z3 compact and the nvidia shield k1. I liked them both for the specs and low price. The tablet will be used for surfing the internet, youtube, Facebook, games, watching movies things like that so I was wondering if someone who has both or has had experience can recommend me which one is better or if there is another tablet that is better suited for me.
Click to expand...
Click to collapse
I was asking me the same question
I don't know so hard to choose
Nvidia Shield Tablette (179€ in EU)
Ecran: 8"
Définition: 1920 x 1200
356grs
16 GB interne, 2 GB RAM
Extension Micro SD
Batterie: 5200 mAh
Dimension: 221 x 126 x 9.2 mm
CPU: Quad-core 2.2 GHz Cortex-A15
GPU: ULP GeForce Kepler (192 cores)
2015, November
Sony Xperia Tablet Z3 Compact (229€ in EU)
Ecran: 8.1"
Définition: 1920 x 1200
270grs
16 GB interne, 3 GB RAM
Extension Micro SD
Batterie: 4 500 mAh
Dimension: 213.4 x 123.6 x 6.4 mm
CPU: Quad-core 2.5 GHz Krait 400
GPU: Adreno 330
2014, November
plopingo said:
I was asking me the same question
I don't know so hard to choose
Nvidia Shield Tablette (179€ in EU)
Ecran: 8"
Définition: 1920 x 1200
356grs
16 GB interne, 2 GB RAM
Extension Micro SD
Batterie: 5200 mAh
Dimension: 221 x 126 x 9.2 mm
CPU: Quad-core 2.2 GHz Cortex-A15
GPU: ULP GeForce Kepler (192 cores)
2015, November
Sony Xperia Tablet Z3 Compact (229€ in EU)
Ecran: 8.1"
Définition: 1920 x 1200
270grs
16 GB interne, 3 GB RAM
Extension Micro SD
Batterie: 4 500 mAh
Dimension: 213.4 x 123.6 x 6.4 mm
CPU: Quad-core 2.5 GHz Krait 400
GPU: Adreno 330
2014, November
Click to expand...
Click to collapse
If they both are the same price which one would you go for?
lilzad said:
If they both are the same price which one would you go for?
Click to expand...
Click to collapse
I bought the Shield yesterday because I want to play games with.
But If I was not in this situation (more video/internet/app usage) I will definitively go for the Sony because despite the smaller battery she has better battery life and not a little it's like 10 hrs more in certain condition so very well optimized rom from sony.
But maybe I can fix the shield battery with a custom rom will see
The z3's bottleneck is the GPU.
---------- Post added at 07:00 PM ---------- Previous post was at 06:25 PM ----------
plopingo said:
Sony because despite the smaller battery she has better battery life
Click to expand...
Click to collapse
If you set the Shield power mode to just 2 CPU cores, you'll get much more battery life.
Niii4 said:
The z3's bottleneck is the GPU.
---------- Post added at 07:00 PM ---------- Previous post was at 06:25 PM ----------
If you set the Shield power mode to just 2 CPU cores, you'll get much more battery life.
Click to expand...
Click to collapse
And the shields interface remain smooth?
No problem for watching video and stuff or it start lagging?
It still runs smooth. You may sense a difference with highly demanding games. Or when you transcode videos.
Niii4 said:
It still runs smooth. You may sense a difference with highly demanding games. Or when you transcode videos.
Click to expand...
Click to collapse
thanks you for all this information
You cannot disable cores on the k1. You can verify this with cpuz. Also the z3 compact tablet has a terrible processor combo by today's standards and doesn't come anywhere near the k1. It also does not have nvidia specific games, console mode, or gamestream (although this can be done with a 3rd party app call moonlight streaming). The speakers are also not as good and it will probably never get another update, ever. There is no reason to buy the sony tablet over the shield.
seh6183 said:
You cannot disable cores on the k1. You can verify this with cpuz. Also the z3 compact tablet has a terrible processor combo by today's standards and doesn't come anywhere near the k1. It also does not have nvidia specific games, console mode, or gamestream (although this can be done with a 3rd party app call moonlight streaming). The speakers are also not as good and it will probably never get another update, ever. There is no reason to buy the sony tablet over the shield.
Click to expand...
Click to collapse
why you have the setting for manage core if its not working ?
seh6183 said:
You cannot disable cores on the k1. You can verify this with cpuz.
Click to expand...
Click to collapse
Then cpuz is apparently showing wrong data, I'd say.
Plenty apps have compatibility issues with a myriad of Android devices.
Niii4 said:
Then cpuz is apparently showing wrong data, I'd say.
Plenty apps have compatibility issues with a myriad of Android devices.
Click to expand...
Click to collapse
Unfortunately cpuz is accurate and you cannot disable any cores on the shield tablet, despite what the UI might be telling you.
Benchmarks tell a different story.
Niii4 said:
Benchmarks tell a different story.
Click to expand...
Click to collapse
Ill run antutu for you right now, 2 and then 4 cores, and post the results. I assure you the cores will all be active no matter what. They are always firing no matter what you do.
The benchmarks do indicate that there is a performance hit, surprisingly. I ran a total of 8 benchmarks to be sure. I am not sure exactly what is happening, but the cores are not being turned off, that's for sure. You can verify this with any CPU monitoring app, I tried 5 different ones and they all said the same thing. I think maybe when you force the CPU into 2 core mode, it may under clock two of the cores or something, but not disable them. It's helpful to know that the option at least does something and is not just there and fake lol. However like I mentioned in another post of mine, setting the performance mode to custom to enable only two cores, will perform worse for battery like than just using optimized. Forcing two cores for individual games, might be helpful however, but probably not by much. As you can see from the following benchmarks, the scores are not halved by disabling half the cores, they are only slightly reduced. Not exactly sure what's going on, but may look into it further in the near future.
Benchmark 1 - two cores enabled:
CPU: 18378
Benchmark 2 - two cores enabled:
CPU: 18374
Benchmark 3 - four cores enabled:
CPU: 22660
Benchmark 4 - four cores enabled:
CPU: 22409
plopingo said:
But If I was not in this situation (more video/internet/app usage) I will definitively go for the Sony because despite the smaller battery she has better battery life and not a little it's like 10 hrs more in certain condition so very well optimized rom from sony.
Click to expand...
Click to collapse
Under what kind of conditions would that be? Engadget's review says 13.5 to 14 hours for their continuous video loop test, and they estimate 10 hours in "real world" use conditions.
https://www.engadget.com/2015/01/11/sony-xperia-z3-tablet-compact-review/
I get around 7 hours of screen-on time with my Shield, running stock and not messing with the cores.
The Sony tablet's battery life is impressive, for sure. But to say a 10 hour difference, is probably an overstatement.
This thread makes me wonder (yet again) where are the tablets? I know the tablet market is pretty stagnant, but its still a bit ridiculous that we are sitting here comparing a tablet from 2015 versus one from 2014. NVIDIA shelved its plan to update the Shield tablet this year. Not much else on the market. On the higher end, Samsung neglected to update its Galaxy Tab S2 this year.
seh6183 said:
The benchmarks do indicate that there is a performance hit, surprisingly. I ran a total of 8 benchmarks to be sure. I am not sure exactly what is happening, but the cores are not being turned off, that's for sure. You can verify this with any CPU monitoring app, I tried 5 different ones and they all said the same thing. I think maybe when you force the CPU into 2 core mode, it may under clock two of the cores or something, but not disable them. It's helpful to know that the option at least does something and is not just there and fake lol. However like I mentioned in another post of mine, setting the performance mode to custom to enable only two cores, will perform worse for battery like than just using optimized. Forcing two cores for individual games, might be helpful however, but probably not by much. As you can see from the following benchmarks, the scores are not halved by disabling half the cores, they are only slightly reduced. Not exactly sure what's going on, but may look into it further in the near future.
Benchmark 1 - two cores enabled:
CPU: 18378
Benchmark 2 - two cores enabled:
CPU: 18374
Benchmark 3 - four cores enabled:
CPU: 22660
Benchmark 4 - four cores enabled:
CPU: 22409
Click to expand...
Click to collapse
maybe not deactivate but consume less battery it's what I need
plopingo said:
maybe not deactivate but consume less battery it's what I need
Click to expand...
Click to collapse
So under what circumstances will you switch to 2 core mode to save battery? The tablet has great battery until it fires up a game and there's not much you're going to do about gaming battery life.
seh6183 said:
So under what circumstances will you switch to 2 core mode to save battery? The tablet has great battery until it fires up a game and there's not much you're going to do about gaming battery life.
Click to expand...
Click to collapse
more battery for movie/netflix
plopingo said:
more battery for movie/netflix
Click to expand...
Click to collapse
Switching over to 2 cores during a movie will likely cost you battery due to the fact that the minimum clock speed for custom is much higher than the minimum clock speed for optimized.
Hi,
Need some advice here. Two phones for sale, both same brand/model however two separate specs and I need the one that will draw the least battery as I use the phones screen time for 8 straight hours a day (satnav) so the less battery draw the better. I do not care about anything else!
1) Snapdragon 625 - 14nm but 5.5" 1080p Screen
2) Snapdragon 435 - 28nm But 5.0" 720p Screen.
So the first phone has the newer 14nm CPU however has a bigger screen area (5.5") and Full HD.
However the second phone has a smaller screen area at 5.0" and is running less resolution @ 720 but has the older 28nm CPU which draws more power.
So which setup, in theory, would use less power?
NokiaBricks said:
Hi,
Need some advice here. Two phones for sale, both same brand/model however two separate specs and I need the one that will draw the least battery as I use the phones screen time for 8 straight hours a day (satnav) so the less battery draw the better. I do not care about anything else!
1) Snapdragon 625 - 14nm but 5.5" 1080p Screen
2) Snapdragon 435 - 28nm But 5.0" 720p Screen.
So the first phone has the newer 14nm CPU however has a bigger screen area (5.5") and Full HD.
However the second phone has a smaller screen area at 5.0" and is running less resolution @ 720 but has the older 28nm CPU which draws more power.
So which setup, in theory, would use less power?
Click to expand...
Click to collapse
see
What's your next smartphone / What should I buy by poseidon5213
and
**DEVICE SUGGESTION THREAD** -- Not sure what device to buy? Ask here! by KidCarter93
Sent from my XT1060 using XDA Labs
Hi, my question was a specific one regarding power draws, not sure if either of those threads are ideal for the question at hand.
NokiaBricks said:
Hi, my question was a specific one regarding power draws, not sure if either of those threads are ideal for the question at hand.
Click to expand...
Click to collapse
It comes down to usage I suppose. If the task at hand requires a lot of processing power but is less taxing on the screen/GPU then the SD 625 is better. If its the other way around then choose the device with the SD 435.
What about battery capacity, are those the same as well?
Freewander10 said:
It comes down to usage I suppose. If the task at hand requires a lot of processing power but is less taxing on the screen/GPU then the SD 625 is better. If its the other way around then choose the device with the SD 435.
What about battery capacity, are those the same as well?
Click to expand...
Click to collapse
Yup both phones have the same battery capacity, they are both identical in most respects, one is the note version the other is not.
The usage is 100% satnav (Waze) no other apps will be running. Any ideas on the usage of Waze?
NokiaBricks said:
Yup both phones have the same battery capacity, they are both identical in most respects, one is the note version the other is not.
The usage is 100% satnav (Waze) no other apps will be running. Any ideas on the usage of Waze?
Click to expand...
Click to collapse
I'd go for the newer/more efficient 625. As things such as GPS, Mobile Data and WiFi usage are embedded in the SoC. Screen brightness and density can be easily be adjusted to reduce power consumption. And you can also underclock the CPU (or turn on some sort of power saver mode) to squeeze out as much juice out of the battery as possible. The difference between a 720p and 1080 p device isn't that much anyway. But the improvements of the 625 over the 435 is far greater.